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Open AccessArticle

Relationship between Sedentary Time, Physical Activity and Multiple Lifestyle Factors in Children

Research Centre in Applied Sports, Technology, Exercise and Medicine (A-STEM), Swansea University, Swansea SA2 8PP, UK
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J. Funct. Morphol. Kinesiol. 2018, 3(1), 15; https://doi.org/10.3390/jfmk3010015
Received: 12 December 2017 / Revised: 17 February 2018 / Accepted: 22 February 2018 / Published: 2 March 2018
An improved understanding of relationships between moderate-to-vigorous physical activity (MVPA), screen-time and lifestyle factors is imperative for developing interventions, yet few studies have explored such relationships simultaneously. Therefore, the study’s aim was to examine the relationship between sufficient MVPA (≥60 min·day–1) and excessive screen-time (≥2 h·day–1) with lifestyle factors in children. In total, 756 children (10.4 ± 0.6 years) completed a questionnaire, which assessed sleep duration, MVPA, homework/reading, screen-time and diet, and a 20 metre multi-stage shuttle run test to assess cardiorespiratory fitness (CRF). Body mass and stature were measured and used to calculate BMI (body mass index) for age/sex z-scores. Fruit and vegetable consumption and CRF were positively associated with sufficient MVPA, irrespective of sex (p < 0.05). Excessive screen-time was positively associated with sugary snack consumption in boys and girls, and diet soft drink intake in boys (p < 0.05). In addition, excessive screen-time was negatively associated with MVPA before school for both boys and girls, as well as with sleep duration and fruit and vegetable consumption for girls (p < 0.05). Sufficient MVPA and excessive screen-time were associated with healthy and unhealthy factors, respectively, with relationships sometimes differing by sex. Future health promoting interventions should consider targeting change in multiple lifestyle factors. View Full-Text
Keywords: youth; moderate-to-vigorous physical activity; screen-time; health; diet; behaviours youth; moderate-to-vigorous physical activity; screen-time; health; diet; behaviours
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Sheldrick, M.P.R.; Tyler, R.; Mackintosh, K.A.; Stratton, G. Relationship between Sedentary Time, Physical Activity and Multiple Lifestyle Factors in Children. J. Funct. Morphol. Kinesiol. 2018, 3, 15.

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