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- Title
Accelerometer cut-points and youth physical activity prevalence.
- Authors
Mota, Jorge; Valente, Mónica; Aires, Luísa; Silva, Pedro; Santos, Maria Paula; Ribeiro, José Carlos
- Abstract
The purpose of this study was twofold: first, to examine the effects of specific cutoff scoring points (on the estimated prevalence of meeting health-related guidelines for physical activity in youth) and, second, to document the differences in gender physical activity patterns according to two different cut-off points. The sample comprised 62 children (boys n = 23; girls n = 39) aged 8-16 years old. Children wore accelerometers for three consecutive weekdays. The daily time spent in moderate-to-vigorous physical activity (MVPA) was calculated using an equation regression developed for youth according to different cut-points. The data analysis from Freedson's cut points showed that both sexes engaged in significantly (p ≤ .01) more MVPA when compared with Puyau's cut points. Boys engaged in significantly (p ≤ .01) more MVPA activities than girls regardless of the cut-off point used. Our data also showed that the percentage of students that reach the physical activity/health related guidelines was significantly higher in both boys (77.3 vs 6.9 percent; p < .001) and girls (60 vs 2.3 percent; p < .001) when Freedson's cut-off point was used. Our data showed that for preventive strategies youth specific cutoff points still need to be refined and, as a result, health-related criteria for young people need to be based on further research evidence.
- Subjects
PHYSICAL fitness &; nutrition; PHYSICAL education; YOUTH physiology; SEX differences (Biology); YOUTH in development; HEALTH status indicators
- Publication
European Physical Education Review, 2007, Vol 13, Issue 3, p287
- ISSN
1356-336X
- Publication type
Article
- DOI
10.1177/1356336X07081795