Physical Activity Researcher

Professor of Physical Activity & Health Dr Stuart Biddle from the University of Southern Queensland, Australia. His main research interest are in health effects, psychology and behaviour change related to sedentary behaviour and physical activity.
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: fibion.com/research---
Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.---

In this episode, we have Professor David Dunstan from the Baker Heart and Diabetes Institute in Melbourne. His research focuses on the role of physical activity and sedentary behaviour in relation to chronic diseases.
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: https://fibion.com/research
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Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.---

Dr Timo Rantalainen - Accelerometry | Gait | Elderly
In this episode, we have Dr Timo Rantalainen, who is Research Fellow at the Gerontology Research Center, Faculty of Sport and Health Sciences, University of Jyväskylä, Finland.
Dr Rantalainen’s area of expertise pertains to neuromuscular and skeletal systems, specifically skeletal adaptation to mechanical loading and neural control of muscles, with a focus on estimating lower limb loading and bone responsiveness. His current research interests include: 1) the effect of loading on bone geometry, 2) neuromuscular function of muscle, 3) muscle and bone adaptations with age, and 4) the measurement of bone geometry using peripheral quantitative computed tomography (pQCT).
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: https://fibion.com/research
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Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.---
Timestamps:02:00 Funding, success rate and part of luck in the process04:20 Physical state prediction from physical activity13:40 Activity parameters indicative of problems in rehabilitation16:35 Complexity of gait and cognition17.30 Dual task paradigm - simple way of detecting early Alzheimer’s19:30 Variability of gait as indicator of health20:15 Dual task and variability of gait21:13 Exerting hard and thinking23:20 Dual task paradigm during pedalling24:45 Advantages of using ergometer compared to gait25:40 Analysis of accelerometers on thorax and thigh32:10 Relativity of activity intensity classification35:00 Histogram analysis of physical activity36:45 Absolute accelerations as predictors37:50 Why walking is such important to study41:40 Static posturography43.10 Heart rate variability and arrythmias43.50 Variability of walking45.10 How to detect the walking from accelerometer signal56.30 Counts and proprietary algorithms57.40 How to test whether accelerometer you use have been calibrated?

[Apologies for the echo in the audio. Learning the lessons of a good recording environment.]
 In this episode, we have postdoctoral researcher Dr Jakob Tarp from Norwegian School of Sport Sciences. His current research is focused on public health and epidemiology of physical activity and fitness.
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: fibion.com/research---
Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.---

In this episode, we have a PhD student James Shelley from Liverpool John Moores University. His current research is focused on physical activity and physiological adaptation in patients with Cystic Fibrosis.
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: fibion.com/research---
Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.---

In this episode, we have a PhD student Matteo Crotti from Liverpool John Moores University. He is doing research about physical activity and motor competence with preschool children.
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: fibion.com/research---
Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.---

[Apologies for the sound quality. This was first time using certain microphone in a room that was not optimal and result was not as expected.]
 In this episode, we have Adjunct Professor Dr Eero Haapala from University of Jyväskylä, Finland. His main interests are in the relationships of physical activity, dietary factors, fitness, fatness, and metabolic syndrome to brain, cognition, and academic achievement among children and adolescents.
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This podcast episode is sponsored by Fibion Inc. | The New Gold Standard for Sedentary Behaviour and Physical Activity Monitoring
Learn more about Fibion: fibion.com/research---
Physical Activity Researcher Podcast have created a ‘Purchase Guide for Researchers: Accelerometer-based Activity Trackers’. You can download it from here.
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Timestamps:
2:45 Why PA affects the brain function? Hunter gatherers and evolution.
7:30 Sensitivity period for PA and cognition
8:30 Importance of fatty acids, vitamins and dietary fibre to cognition
11:50 Deficiencies vs. non-optimal diet
12:35 Established dietary recommendations hold true also for cognition
13:00 Fitness and fatness
13:45 How to separate fitness from body size and composition?
14:50 Stroke volume - the most important determinant of fitness
15:30 Fatness and insulin resistance
17:08 Insulin resistance in children
30:30 Sedentary behaviour and blood flow
32:10 Arterial stiffness in menopausal women
33:00 New interest in arteries
34:45 Method to measure arterial stiffness
36:30 Method to measure endothelial function
37:45 How physical activity affects brain?
38:15 Size of hippocampus and improved memory
39:35 Cognitive aspects of physical activity
41:15 Practicalities when conducting research with children
42:30 Importance of Superman sticker
43:56 Attaching ActivPALs with PAL stickies
46:00 Whether to use thigh-, hip- or wrist-worn devices with children?