Capturing the pattern of physical activity and sedentary behavior: exposure variation analysis of accelerometer data
MetadataShow full item record
Background: Capturing the complex time pattern of physical activity (PA) and sedentary behavior (SB) using accelerometry remains a challenge. Research from occupational health suggests exposure variation analysis (EVA) could provide a meaningful tool. This paper (1) explains the application of EVA to accelerometer data, (2) demonstrates how EVA thresholds and derivatives could be chosen and used to examine adherence to PA and SB guidelines, and (3) explores the validity of EVA outputs. Methods: EVA outputs are compared with accelerometer data from 4 individuals (Study 1a and1b) and 3 occupational groups (Study 2): seated workstation office workers (n = 8), standing workstation office workers (n = 8), and teachers (n = 8). Results: Line graphs and related EVA graphs highlight the use of EVA derivatives for examining compliance with guidelines. EVA derivatives of occupational groups confirm no difference in bouts of activity but clear differences as expected in extended bouts of SB and brief bursts of activity, thus providing evidence of construct validity. Conclusions: EVA offers a unique and comprehensive generic method that is able, for the first time, to capture the time pattern (both frequency and intensity) of PA and SB, which can be tailored for both occupational and public health research.
Showing items related by title, author, creator and subject.
Excessive sitting at work and at home: Correlates of occupational sitting and TV viewing time in working adultsHadgraft, N.; Lynch, B.; Clark, B.; Healy, Genevieve; Owen, N.; Dunstan, D. (2015)Background: Recent evidence links sedentary behaviour (or too much sitting) with poorer health outcomes; many adults accumulate the majority of their daily sitting time through occupational sitting and TV viewing. To ...
Black, Melissa; Milbourn, Ben; Desjardins, K.; Sylvester, V.; Parrant, K.; Buchanan, Angus (2019)© The Author(s) 2019. Introduction: It is theorized that occupational therapy practice is underpinned by the construct of occupational engagement, with a focus on examining the subjective meaning of occupation. The ...
“Just one of the guys” An application of the Occupational Wellbeing framework to graduates of a Men’s Shed Program for young unemployed adult males with intellectual disabilityMilbourn, Benjamin ; Mahoney, Natasha ; Trimboli, Concettina; Hoey, Ciarain; Cordier, Reinie ; Buchanan, Angus ; Wilson, N. J. (2020)Introduction: Conceptualisation of occupation requires understanding of subjective wellbeing and experiences of occupation. Opportunities for participation in productivity activities, such as employment, may be limited ...