Accelerometer-Based Physical Activity Levels and Sedentary Behavior under Free-Living Conditions in Thai Adolescents.
Year: 2012
Type: dissertation
Study design: Observational Study
Abstract: Background: It is generally accepted that the promotion of physical activity (PA) is a key strategy for reducing the risk of childhood obesity. However, the relationship between weekday-weekend difference and adolescents’ PA levels measured objectively is poorly documented. Aim: 1) to determine differences in time spent in objectively assessed moderate-to-vigorous physical activity (MVPA) levels by gender and age, of adolescents during weekdays and weekends; and, 2) to use objective monitoring of MVPA to determine the non-compliance and compliance of adolescents with current PA guidelines (PAG). Subjects and methods: This was a cross-sectional study of 186 Thai adolescents aged 13-18 years (92 boys and 94 girls) in Northeast Thailand. Participants were asked to wear an ActiGraph (GT1M) accelerometer for 7 consecutive days, during all waking hours. Mean daily minutes of MVPA were obtained by applying accelerometer count thresholds corresponding to MVPA. Results: The results showed MVPA levels were significantly higher in boys than girls, on both weekdays (p levels tend to decline with increasing age during adolescence. The results also showed statistically significant differences between genders in the proportion of compliance with PAG. Conclusions: This study will add to public knowledge about adopting PA habits in routine daily life, starting at adolescence. Specifically, it highlights the need to take weekend-weekday differences into account when developing PA interventions for adolescents.
Author: Kurusart Konharn
Language: English
Topic: Physical Activity and Health
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W158061282