Avsnitt

  • "How does Fibion G2 empower researchers with advanced physical activity tracking?"

    In this episode of the Physical Activity Researcher Podcast, Dr. Olli Tikkanen introduces the Fibion G2, an updated version of the trusted Fibion Research device. Fibion G2 offers key enhancements like raw data recording at 50 Hz, a 3-axis accelerometer with 16-bit resolution for greater precision, and a new event marker button for creating timestamps during studies. With flexible wear options—thigh, chest, or wrist—the device caters to diverse research needs, from sedentary behavior analysis to sleep studies.

    Dr. Tikkanen also highlights the G2's validated algorithms, which ensure accurate activity-specific energy expenditure and physical activity intensity classifications. By maintaining compatibility with existing studies and adding advanced features, Fibion G2 provides researchers with a future-proof solution for a variety of study designs. To learn more or book a demo, visit web.fibion.com.

    ---

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

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    Collect, store and manage SB and PA data easily and remotely - Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy. Learn more about Fibion Research.

    ---

    Fibion Helix – Ideal for large scale studies. Scalable and affordable with patented precision.

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    Fibion G2 – validated data on sitting, standing, activity types, energy expenditure, with participant friendly reports.

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    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • How Fatigue Reveals Problems in Running Technique?

    How to Use Biofeedback to Prevent Injuries?

    Runeasi - Gait Analysis Made Easy:

    Learn more at: https://runeasi.ai/

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    Dr. Kurt Heinrich Schutte has a PhD in Biomedical Sciences (KU Leuven) and Sports Sciences (Stellenbosch University). His PhD is on novel biomechanical metrics in the real-world using wearable technology.

    He is passionately committed to building decision-support tools in the health and sports technology sectors using a multidisciplinary cocktail of research, innovation, data science, and entrepreneurship.---

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

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    Klicka här för att uppdatera flödet manuellt.

  • "What practical challenges arise in measuring physical activity among children?" In this final part of the episode, Dr. Olli Tikkanen and Dr. Ying Gao discuss the real-world challenges faced when collecting physical activity data from children using devices like Fibion. Dr. Gao shares her experience with device placement, tape sensitivity, and device retention, revealing that around 15-20% of devices were lost in initial studies due to a lack of clear instructions for parents and children. By enhancing communication with parents and teachers and providing practical solutions like custom-made pockets in shorts, Dr. Gao’s team significantly improved data retention and device return rates.

    Dr. Gao also highlights how varying humidity levels in different locations impact device attachment and shares strategies, such as using specific tapes and providing flexible study schedules, to make participation easier for children. This episode is essential for researchers looking to understand the logistical considerations in physical activity data collection among young participants.

    ____________________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • "How does physical activity differ between children with different body weights?" In this third part of the episode, Dr. Olli Tikkanen and Dr. Ying Gao discuss her findings on physical activity patterns in children, focusing on differences between overweight and normal-weight groups. Dr. Gao explains how accelerometer and EMG data revealed that overweight children show higher muscle activity even when standing, which may contribute to their tendency for more sedentary behavior, as physical tasks can be more exhausting for them. Her research highlights the potential role of physical demands in shaping activity levels among children.

    Dr. Gao also shares insights from her 7-day measurement study of over 400 children, examining how physical activity, sedentary behavior, and sleep patterns impact body weight and overall health. The episode touches on future research directions and how these findings could inform interventions to promote healthy behaviors in school-aged children.

    ____________________________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • What type of projects include measurements of PA?Considerations when choosing an activity tracker grouped in three main topics:Participant-centric:Research and innovation drivenRegulatory

    Dr. Miriam Cabrita has done her bachelor's and master's degrees at NOVA School of Science and Technology in Portugal, and her PhD in biomedical engineering in University of Twente.

    Then she has worked at Roessingh Research and Development Center in Netherlands for 8 years coordinating and managing EU research projects related to eHealth.

    Teaching also courses on Physical Activity, Digital Health and Virtual Coaching at the University of Twente.

    She has acted as a Board Member for 5 years in International Society for the Measurement of Physical Behaviour (ISMPB).

    Currently she is working as a Chief Customer Officer at Fibion Inc.

    ---

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • "How do video and accelerometer data together improve activity tracking in children?" In this second part of the episode, Dr. Olli Tikkanen and Dr. Ying Gao discuss her innovative study combining accelerometer and video observation data to improve activity classification in children. Dr. Gao explains how she adapted wearable cameras and accelerometers, including Fibion devices, to measure activity across various body locations such as the back, chest, and wrist. This setup allowed her team to validate physical activity and sedentary behavior in school-aged children, accurately differentiating between sitting, standing, and moving.

    Dr. Gao also describes the meticulous video coding process, which involved tracking leg movements without capturing faces to maintain privacy. Her research highlights the challenges and benefits of integrating video and accelerometry to obtain reliable data on children’s movement, especially in free-living environments. This episode offers insights for researchers interested in advanced methods for studying physical activity and sedentary behavior in children.

    ___________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • "Can we accurately measure children’s physical activity with just one device?" In this insightful episode, Dr. Olli Tikkanen speaks with Dr. Ying Gao about her research on sedentary behavior and physical activity in children, combining accelerometer and EMG data to improve accuracy. Dr. Gao explains the challenges of using only accelerometers, as they capture movement but not muscle contractions, which are essential for understanding true physical activity. She describes her study on setting a reliable threshold to differentiate between sitting, light movement, and active play in children, aiming to create a standardized approach for assessing activity levels.

    Dr. Gao also discusses her findings on how combining EMG with accelerometer data provides a clearer picture of muscle activity, especially for distinguishing between sedentary and active behaviors in school-aged children. This episode sheds light on new methods in physical activity measurement that could improve research on children’s health and activity habits.

    __________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    Learn more about Fibion Flash - a versatile customizable tool with HRV and accelerometry capability.

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • "How can advanced health monitoring devices support an aging population?" In this insightful episode, Dr. Olli Tikkanen sits down with Steve Seo, a biomedical engineer and CEO from South Korea, to discuss the role of wearable technology in healthcare, especially as populations age. Steve shares his journey from aspiring to be a doctor to working in biomedical engineering and explains how wearable devices like Fibion are helping to track and improve physical activity, sleep, and heart health. With South Korea's rapidly aging population, the demand for innovative health solutions is growing, and Steve emphasizes the importance of easy-to-use devices that fit seamlessly into daily life.

    The conversation explores cultural differences in technology adoption, including preferences for wrist-worn devices over other placements, and the role of AI in advancing healthcare solutions. Steve highlights the need for translated, user-friendly health reports and how South Korea’s tech-savvy culture is rapidly embracing digital health tools. This episode is perfect for anyone interested in the intersection of wearable technology and healthcare for aging populations.

    ____________________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • "Why does device placement matter in physical activity and biomechanics research?" In this final part of the episode, Dr. Olli Tikkanen discusses the importance of selecting the right wear location for devices like Fibion Flash, tailored to different research goals. Device placement can significantly affect the accuracy of data collection, whether for sedentary behavior, heart rate variability, or biomechanics studies. Dr. Tikkanen explains how Fibion Flash’s versatile snap connectors and textile integration make it easy to shift between wrist, thigh, and chest placements, optimizing data collection across various studies.

    He also shares unique applications of the device beyond traditional placements, such as attaching it to sports equipment or vehicles for occupational research. The flexibility of Fibion Flash allows researchers to capture a wide range of data, enhancing study design and providing greater value for research investments. This episode is ideal for researchers interested in optimizing device placement to gather more relevant data.

    ___________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check our YouTube channel: https://www.youtube.com/@PA_Researcher

  • "How does customizable data collection enhance research accuracy?" In this episode, Dr. Olli Tikkanen explains the importance of customizable data collection settings in research and how the Fibion Flash device offers flexibility to suit a variety of study types. The ability to adjust sampling frequencies, sensor activation, and measurement ranges allows researchers to align data collection precisely with their objectives—whether for low-frequency sedentary behavior studies or high-frequency sports biomechanics research. Dr. Tikkanen discusses the versatility of Fibion Flash, which features a 9-axis motion sensor and options for ECG and heart rate variability measurement.

    He also covers practical examples, such as selecting the optimal accelerometer range for accurate physical activity data and adjusting settings for heart rate variability to capture precise cardiovascular information. With customizable options ranging from 12.5 Hz to 416 Hz for sampling frequency, Fibion Flash supports diverse research needs, providing reliable data for short-term and long-term projects. This episode is perfect for researchers looking for adaptable tools to optimize their study designs.

    ___________________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Collect self-report physical activity data easily and cost-effectively with Mimove.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    https://www.youtube.com/@PA_Researcher

  • "How does Fibion Flash bring flexibility and precision to research?" In this episode, Dr. Olli Tikkanen introduces the Fibion Flash, a versatile new wearable for researchers working in fields like physical activity, sleep, heart rate variability, and sports science. Designed with a multi-sensor system, Fibion Flash collects comprehensive data on both movement and physiological signals, enabling it to support studies ranging from basic activity tracking to complex cardiovascular research. Dr. Tikkanen highlights the device’s key features, including customizable sampling frequencies, an interchangeable battery, and versatile wear options like wristbands, chest belts, and electrode patches.

    Dr. Tikkanen also discusses Fibion Flash’s cost-effectiveness, durability, and the option of a medically certified version for clinical research. From analyzing sedentary behavior to detailed heart rate variability assessments, Fibion Flash is an adaptable solution suited for a wide range of research applications. This episode is a must-listen for researchers seeking reliable, high-quality data collection tools.

    _______________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behaviour and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS

    ---

    SB and PA measurements, analysis, and feedback made easy.

    Learn more about Fibion Research

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Collect self-report physical activity data easily and cost-effectively with Mimove.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    https://www.youtube.com/@PA_Researcher

  • "Can early detection and community support improve COPD care?" In the final part of this episode, Dr. Olli Tikkanen speaks with David Mannino, MD, Jonnie Korinko, and Phyllis DiLorenzo about the critical role of early diagnosis, effective treatment, and community support for COPD patients. Mannino, MD discusses the latest research efforts to detect COPD in its early stages, before symptoms worsen. Jonnie Korinko emphasizes the importance of pulmonary rehabilitation programs, not only for physical activity but also for medication education and patient empowerment. Phyllis DiLorenzo shares her own experiences, highlighting the vital support networks available to COPD patients and how peer connections have made a meaningful impact on her journey.

    The guests also explore the challenges of reimbursement and access to pulmonary rehab, stressing the need for broader support and awareness to improve COPD care. This episode provides an in-depth look at the essential components of COPD management and offers valuable insights for anyone interested in respiratory health and patient advocacy.

    ___________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "How can virtual rehab bring physical activity to more COPD patients?" In this second part of the episode, Dr. Olli Tikkanen speaks with David Mannino, MD, respiratory therapist Jonnie Korinko, and COPD patient advocate Phyllis DiLorenzo to explore the benefits and challenges of virtual pulmonary rehabilitation. Mannino, MD discusses the accessibility issues many COPD patients face with in-person rehab programs and how virtual options can bridge the gap. Jonnie Korinko emphasizes the importance of flexibility in treatment, as virtual programs allow patients in rural areas to engage in physical activity without traveling long distances. Phyllis DiLorenzo shares her positive experiences with virtual rehab, highlighting the community and support she’s found through online programs and peer connections.

    The discussion also covers the importance of medication adherence, peer support, and how digital tools can help COPD patients maintain their exercise routines outside of formal rehab programs. The episode provides valuable insights for those interested in the future of telemedicine and how virtual pulmonary rehabilitation can enhance the quality of life for COPD patients.

    ______________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "Can physical activity really improve the quality of life for COPD patients?" In this engaging first part of the episode, Dr. Olli Tikkanen speaks with David Mannino, MD, Jonnie Korinko, and Phyllis DiLorenzo to discuss the role of physical activity in managing Chronic Obstructive Pulmonary Disease (COPD). Mannino, MD explains the physical challenges that COPD patients face, particularly the downward spiral of reduced activity and muscle loss due to difficulty breathing. Jonnie Korinko, a respiratory therapist, shares insights on the benefits of pulmonary rehabilitation and the impact of structured exercise programs on patient outcomes. Phyllis DiLorenzo offers her personal perspective on living with COPD, highlighting how physical activity has played a critical role in managing her symptoms and improving her overall well-being.

    The conversation covers the physiological and psychological benefits of staying active, even with COPD, and the importance of building individualized exercise programs. The guests also discuss practical tips for incorporating physical activity into daily life, emphasizing that even small steps can make a difference. This episode provides valuable insights into how physical activity can be a powerful tool in improving the quality of life for those with COPD.

    _____________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "How can wearable sensors improve farm animal health monitoring?"

    In this third and final part of the episode, Dr. Olli Tikkanen continues his conversation with Prof. Suresh Neethirajan, exploring the practical applications of sensors like Fibion SENS in farm animal health. Prof. Neethirajan discusses how wearable sensors are used to monitor animal movement, health, and environmental factors, and highlights the importance of balancing battery life, data accuracy, and device ruggedness in harsh farm conditions. He also touches on the potential for real-time data transmission and the role of AI in processing this information to improve animal welfare and farm management.

    The discussion also addresses the need for customizable sensor designs depending on the use case - whether for long-term farm monitoring or experimental research. Prof. Neethirajan shares his insights on how these technologies are evolving to meet the demands of both researchers and farmers, and how the future of farming will increasingly rely on digital solutions like Fibion SENS for continuous, non-invasive monitoring.

    _______________________________________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "Can AI predict pain in animals before it's visible?" In this second episode, Dr. Olli Tikkanen continues his engaging discussion with Prof. Suresh Neethirajan, an expert in digital agriculture and animal welfare. Prof. Neethirajan explains how accelerometer data combined with AI models is being used to detect early signs of pain and health issues in farm animals. By analyzing movement, posture, and other subtle behavioral changes, the AI models can predict conditions like lameness weeks before they manifest. This allows farmers to take preventive action, improving both animal welfare and farm efficiency.

    The conversation also highlights how the Fibion SENS system plays a critical role in gathering high-resolution data from larger farm animals. Prof. Neethirajan discusses the balance between data collection frequency and practicality, explaining how wearable sensors and video analytics are evolving to create more efficient, non-invasive monitoring systems for both large and small animals. This episode offers valuable insights into the future of animal welfare and technology's role in improving farm management.

    _____________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "Can AI predict health problems in farm animals before they even show symptoms?" In this fascinating episode, Dr. Olli Tikkanen welcomes Professor Suresh Neethirajan, an expert in digital agriculture and animal welfare, to explore how artificial intelligence and accelerometer data are revolutionizing the way we care for farm animals. Prof. Neethirajan shares how his team uses AI models, combining accelerometer data with other health metrics, to predict issues like lameness in cows weeks before symptoms appear. This early detection could transform farm management by enabling preventative care, improving animal welfare, and enhancing farm productivity.

    The episode also dives into the practical challenges of collecting data from various farm animals, including cows, sheep, and chickens, and how accelerometers and AI models can provide insights into their behavior and health. Prof. Neethirajan explains how activity data is used to assess movement patterns, stress indicators, and even predict metabolic disorders in animals. If you’re curious about how technology is being applied to improve animal welfare and farm management, this episode offers a compelling look into the future of agriculture.

    ________________________

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "Can physical activity really help you sleep better and manage stress?" In this third episode, Dr. Olli Tikkanen continues the conversation with sleep researcher Jin Wen, exploring how physical activity interacts with sleep and stress. Jin discusses how daily movement can improve sleep quality and reduce stress, but it’s not just about burning energy. She shares insights from research showing that regular physical activity helps maintain homeostasis, which can lead to better sleep and lower stress levels.

    Jin also introduces the SATED model, which evaluates different aspects of sleep, including satisfaction, alertness, timing, and duration. This holistic approach helps people understand how sleep quality goes beyond just getting enough hours of rest. Additionally, Jin highlights a growing issue in modern life - revenge sleep procrastination, where people sacrifice sleep to reclaim personal time, potentially affecting both their sleep and long-term health. If you want to learn how physical activity, sleep, and stress are interconnected, this episode is filled with practical insights and research findings.---

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "Does poor sleep impact your stress more than stress affects your sleep?" In this second episode, Dr. Olli Tikkanen continues his insightful discussion with sleep researcher Jin Wen, diving deeper into the fascinating relationship between daily stress and sleep. Jin explains that while stress and sleep influence each other, poor sleep has a more direct impact on how we handle stress the next day. This episode explores the nuances of how sleep acts like a reset button, and when that reset is faulty, it can shape our reactions to daily hassles.

    Jin also sheds light on how chronic stress differs from daily stress and how physiological markers like cortisol play a role in both. She discusses the use of objective measures such as cortisol and heart rate variability in understanding the body's response to stress and sleep quality. If you're curious about the science of sleep, stress, and their effects on your daily life, this episode provides thought-provoking insights and practical research findings.

    ---

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher

  • "What if your sleep quality shapes not just your day, but your whole health future?" In this first episode, Dr. Olli Tikkanen speaks with sleep expert Jin Wen about the fascinating relationship between sleep, stress, and daily well-being. Jin shares her journey from studying stress to focusing on sleep and explains how sleep isn’t just about the number of hours you get—it's about how you feel when you wake up. Drawing on her research, Jin explores the “vicious cycle” of daily stress and poor sleep, showing how one bad night can make it harder to handle stress the next day, trapping people in a cycle of fatigue and anxiety.

    Jin also explains the power of subjective sleep assessments, emphasizing that how you perceive your sleep can be as important as the objective data from sleep trackers. She breaks down her research methods, including the use of ecological momentary assessments (EMA), which capture real-time data about participants’ daily experiences. This episode is a must-listen for anyone interested in understanding how sleep influences daily functioning and long-term health.

    ---

    This podcast episode is sponsored by Fibion Inc. | Better Sleep, Sedentary Behavior and Physical Activity Research with Less Hassle

    ---

    Collect, store and manage SB and PA data easily and remotely -

    Discover ground-breaking Fibion SENS.

    ---

    SB and PA measurements, analysis, and feedback made easy - Learn more about Fibion Research.

    ---

    Learn more about Fibion Sleep and Fibion Circadian Rhythm Solutions.

    ---

    Fibion Kids - Activity tracking designed for children.

    ---

    Explore our Wearables, Experience sampling method (ESM), Sleep, Heart rate variability (HRV), Sedentary Behavior and Physical Activity article collections for insights on related articles.

    ---

    Refer to our article "Physical Activity and Sedentary Behavior Measurements" for an exploration of active and sedentary lifestyle assessment methods.

    ---

    Learn about actigraphy in our guide: Exploring Actigraphy in Scientific Research: A Comprehensive Guide.

    ---

    Gain foundational ESM insights with "Introduction to Experience Sampling Method (ESM)" for a comprehensive overview.

    ---

    Explore accelerometer use in health research with our article "Measuring Physical Activity and Sedentary Behavior with Accelerometers ".

    ---

    For an introduction to the fundamental aspects of HRV, consider revisiting our Ultimate Guide to Heart Rate Variability.

    ---

    Follow the podcast on Twitter https://twitter.com/PA_Researcher

    Follow host Dr Olli Tikkanen on Twitter https://twitter.com/ollitikkanen

    Follow Fibion on Twitter https://twitter.com/fibion

    Check us on YouTube: https://www.youtube.com/@PA_Researcher