Attending After-School Physical Activity Club 2 Days a Week Attenuated an Increase in Percentage Body Fat and a Decrease in Fitness Among Adolescent Girls at Risk for Obesity
| Autor: | Fujun Wen, Lorraine B. Robbins, Jiying Ling |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Schools Health (social science) Adolescent business.industry Percentage body fat Public Health Environmental and Occupational Health Physical activity Attendance medicine.disease Obesity Body Mass Index Adipose Tissue Physical Fitness Intervention (counseling) Physical therapy Humans Medicine Female Club Child business Exercise Body mass index |
| Zdroj: | American Journal of Health Promotion. 34:500-504 |
| ISSN: | 2168-6602 0890-1171 |
| Popis: | Purpose: To evaluate the effect of a 17-week intervention, including an after-school physical activity (PA) club 3 d/wk, on moderate-to-vigorous physical activity (MVPA), body mass index (BMI) z score, percentage body fat (%BF), and cardiorespiratory fitness (CRF) among fifth to eighth grade girls having a BMI z score ≥0, and explore whether intervention outcomes varied by club attendance (1 vs 2 vs 3 d/wk). Design: Secondary analysis of data from a group randomized controlled trial (N = 1519, 10- to 15-year-old girls: n = 753 intervention; n = 766 control). Setting: Twenty-four Midwestern US schools (n = 12 intervention; n = 12 control). Sample: Subsample (n = 1194 girls) from trial’s intervention (n = 593 girls) and control (n = 601 girls) groups having BMI z scores ≥0. Measures: Moderate-to-vigorous physical activity (min/h), BMI z score, %BF, and CRF ([Formula: see text]: mL/kg/min) were estimated at baseline and postintervention. Analysis: Linear mixed-effect models. Results: Intervention group gained less %BF ( B = −0.35, P = .016), and their CRF decreased less ( B = 0.22, P = .010) than the control. Marginally significant findings showed girls attending the club an average of 1 d/wk had greater increases in %BF ( B = 0.33, P = .087) and MVPA ( B = 0.20, P = .083) and a greater decrease in CRF ( B = −0.20, P = .061) than girls attending 3 d/wk. No differences occurred between girls who attended 2 versus 3 d/wk for any outcomes. Conclusions: The intervention attenuated an increase in %BF and a decrease in CRF among girls at risk for obesity from baseline to postintervention. Offering the after-school PA club 2 d/wk may be adequate for achieving outcomes. |
| Databáze: | OpenAIRE |
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