Attempts to reduce the decline in physical activity (PA) in adolescence have been the focus of many public health interventions. This study aimed to (1) determine differences in moderate-to-vigorous PA (MVPA) levels between weekdays and weekends and (2) identify adolescents meeting current PA guidelines (PAG). To meet these objectives, 186 Thai adolescents aged 13 to 18 years were asked to wear an ActiGraph accelerometer for 7 consecutive days. The results showed that MVPA levels were significantly higher in boys than girls on both weekdays (P < .01) and weekends (P < .05). MVPA was higher during weekdays compared with weekend days. Additionally, MVPA levels tend to decline with increasing age during adolescence. The results also showed statistically significant differences between genders in the proportion of adherence to PAG for youth. This study highlights the need to take weekend-weekday differences into account when developing PA interventions for adolescents.
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http://dx.doi.org/10.1177/1010539512459946 | DOI Listing |
Int J Behav Nutr Phys Act
January 2025
Physical Education Department, Central South University, Changsha, 410083, China.
Background: The purpose of this study is to explore the association between class-level factors, such as lesson start time, class size, lesson location, PE content, and PE context, and student engagement in moderate-to-vigorous physical activity (MVPA) during PE lessons in both elementary and middle schools.
Methods: A total of 284 PE lessons from ten schools in Shanghai, Eastern China, were included in the study. Students' MVPA during PE lessons was recorded using accelerometry, and lesson context was evaluated using the System for Observing Fitness Instruction Time (SOFIT).
PLoS One
January 2025
RAND Corporation, Santa Monica, CA, United States of America.
Background: Accelerometers are widely adopted for physical activity (PA) measurement. Accelerometry data require pre-processing before entering formal statistical analyses. Many pre-processing criteria may influence PA outcomes and the processed sample, impacting results in subsequent statistical analyses.
View Article and Find Full Text PDFBMC Pediatr
December 2024
Institute of Sport Sciences and Physiotherapy, Faculty of Medicine, University of Tartu, Tartu, 51008, Estonia.
Backround: Low physical activity and high sedentary behaviour is a concern already during preschool period with potential impacts on children's future cognitive health in school. However, longitudinal data regarding the associations of physical activity, sedentary time and cognition at young age are limited, thus the aim of this study was to investigate whether objectively monitored moderate-to-vigorous physical activity (MVPA) and sedentary time at preschool age are related to cognitive skills in the first grade of school among boys and girls.
Methods: Participants were boys (n = 50, aged 6.
BMC Public Health
December 2024
Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium.
Purpose: An accurate assessment of time spent in 24-hour movement behaviors (24 h-MBs) is crucial in exploring health related associations. This study aims to evaluate the concurrent validity of the Daily Activity Behavior Questionnaire (DABQ) compared to the ActiGraph using absolute and relative indicators of validity.
Methods: This cross-sectional observational study included 105 adults (45 ± 13 y/o, 54% female).
Vision Res
December 2024
Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey; Department of Interior Architecture and Environmental Design, Bilkent University, Ankara, Turkey; Aysel Sabuncu Brain Research Center and National Magnetic Resonance Imaging Center, Bilkent University, Ankara, Turkey. Electronic address:
The study of scene perception is crucial to the understanding of how one interprets and interacts with their environment, and how the environment impacts various cognitive functions. The literature so far has mainly focused on the impact of low-level and categorical properties of scenes and how they are represented in the scene-selective regions in the brain, PPA, RSC, and OPA. However, higher-level scene perception and the impact of behavioral goals is a developing research area.
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