Characterization of Detailed Sedentary Postures Using a Tri-Monitor ActivPAL Configuration in Free-Living Conditions

Objective monitors such as the activPAL characterize time when the thigh is horizontal as sedentary time. However, there are physiological differences between lying, bent-legged sitting, and straight-legged sitting. We introduce a three-monitor configuration to assess detailed sedentary postures and...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2023-01, Vol.23 (2), p.587
Main Authors: O'Brien, Myles W, Daley, W Seth, Schwartz, Beverly D, Shivgulam, Madeline E, Wu, Yanlin, Kimmerly, Derek S, Frayne, Ryan J
Format: Article
Language:English
Subjects:
Accelerometers
Accelerometry
Adult
bent-knee sitting
Blood pressure
body positions
Configurations
Humans
inclinometry
Knee
Laboratories
lying time
Physiology
Posture
Sedentary behavior
Self report
Sitting Position
sitting postures
Sleep
Social Conditions
Software
Thigh
Torso
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Description
Summary:Objective monitors such as the activPAL characterize time when the thigh is horizontal as sedentary time. However, there are physiological differences between lying, bent-legged sitting, and straight-legged sitting. We introduce a three-monitor configuration to assess detailed sedentary postures and demonstrate its use in characterizing such positions in free-living conditions. We explored time spent in each sedentary posture between prolonged (>1 h) versus non-prolonged ( 0.26). We document that a considerable amount of waking time is accumulated in lying or straight-legged sitting. This methodological approach equips researchers with a means of characterizing detailed sedentary postures in uncontrolled conditions and may help answer novel research questions on sedentariness.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23020587