@article{ref1,
title="Bidirectional associations between psychological states and physical activity in adolescents: a mHealth pilot study",
journal="Journal of pediatric psychology",
year="2017",
author="Cushing, Christopher C. and Mitchell, Tarrah B. and Bejarano, Carolina M. and Walters, Ryan W. and Crick, Christopher J. and Noser, Amy E.",
volume="42",
number="5",
pages="559-568",
abstract="OBJECTIVE:  To understand the predictors and consequences of adolescent moderate-to-vigorous physical activity (MVPA) and sedentary behavior in nearly real-time. <br><br>METHODS:  Participants were 26 adolescents (Mage = 15.96, SD = 1.56) who provided 80 self-reports of subjective states and continuous objective reports of MVPA and sedentary behavior over 20 days. <br><br>RESULTS:  Random effects were observed for all of the models with affect and feeling variables predicting MVPA. There was a negative fixed effect for within-person positive affect and sedentary behavior and the inverse association for negative affect. Within-person MVPA was a significant positive predictor of positive affect and energy. There was a random effect for within-person MVPA and fatigue. There was a significant random effect for within-person sedentary behavior predicting positive affect. Within-person sedentary behavior was a significant negative predictor of energy. <br><br>CONCLUSIONS:  Findings highlight the importance of the intrapersonal nature of the associations among subjective states and physical activity.<br><br>© The Author 2017. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.<p /> <p>Language: en</p>",
language="en",
issn="0146-8693",
doi="10.1093/jpepsy/jsw099",
url="http://dx.doi.org/10.1093/jpepsy/jsw099"
}