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 ...
Do highly physically active workers die early? A systematic review with meta-analysis of data from 193 696 participantsCoenen, P.; Huysmans, M.; Holtermann, A.; Krause, N.; Van Mechelen, W.; Straker, Leon; Van Der Beek, A. (2018)© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted. Objective: Recent evidence suggests ...
Climate, buildings and occupant expectations: a comfort-based model for the design and operation of office buildings in hot humid conditionsKishnani, Nirmal (2002)Office buildings in hot humid Singapore appear to be designed for stable and uniform indoor conditions. It is proposed in this thesis that this is unnecessary, as occupant comfort expectations do not warrant it and energy ...