Author : Rachel Kays
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (118 download)
Book Synopsis Time to Do what Now? The Estimated Effect of Reallocating Time Between Sedentary Behaviours on Health Behaviours by : Rachel Kays
Download or read book Time to Do what Now? The Estimated Effect of Reallocating Time Between Sedentary Behaviours on Health Behaviours written by Rachel Kays and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There is much evidence to suggest the negative impacts that sedentary behaviour (SB) can have on one's health. What is less known is the specific effects of individual SBs. There is evidence to suggest that screen based SBs are adversely associated with physical health and that non screen based SBs may have beneficial associations with health. Using data collected by the Comprehensive School of Health Research Group (CSHR) as part of the SHAPES - PEI project, students self-reported the amount of time they spent participating in the following five sedentary behaviours: watching/streaming TV/movies, playing computer/video games, talking on the phone, surfing the internet, and reading for fun. The objective of this thesis was to estimate the impact of reallocating one sedentary behaviour with another on ten health outcomes: moderate-to-vigorous physical activity (MVPA), strength training frequency, flexibility training frequency, body mass index (BMI), perception of being overweight or underweight, fruit and vegetable consumption, salt and sugary snack consumption (SSS), sugar sweetened beverage consumption(SSB), and fast food frequency using an Isotemporal Substitution Method (ISM). Data for this questionnaire were collected during the 2014/2015 academic year. A total of 5621 children and youth (49% males) in grades 5 - 12 across Prince Edward Island (PEI) completed the questionnaire. Six of the above health outcomes did not meet the assumption of linearity for the ISM and as a result were dropped from future analysis. Results from the ISM indicated that replacing TV, computer/video games, internet, and reading for fun with talking on the phone was consistently associated with decreased likelihood of being physically inactive. Replacing screen based SBs, talking on the phone, and reading for fun resulted in similar reductions in the likelihood of not meting strength training guidelines. Replacing TV and computer/video games with internet, talking on the phone, and reading resulted in a decrease in the likelihood of living with overweight/obesity with the detrimental association of TV watching being significantly driven by females. Computer/video game had the most detrimental association on perceiving oneself as underweight when replacing all other SBs; significant findings were driven by female participants exclusively. Internet had the most detrimental impact on perceiving oneself as overweight when replacing all other SBs. When examining sexes separately, TV use had a detrimental associated with perceiving oneself as overweight for females, but not for males. Computer/video game use had a detrimental associated with perceiving oneself as overweight for males, but not females. Our results suggest that replacing screen-based SBs with non-screen-based SBs have a neutral or beneficial association with physical activity and weight status. These findings also highlight that the impact of SB varies depending on the specific behaviour being performed and across sexes. Future research should 1) examine the impact of multiple types of non-screen based SB and screen based SB on different lifestyle behaviours; 2) look at the specific content being viewed when performing these activities (i.e. educational or leisure); and 3) look at the determinants of SB on males and females separately.
