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The aim of the present study was to analyze the effect of a physical activity (PA) program on the fitness perceptions(FP) of nine-to-11-year-old schoolchildren. This quasiexperimental study involved 24 children divided intoexperimental (EG) and control groups (CG). Perceptions of fitness (FP), cardiorespiratory fitness (CRFP) and muscularstrength (MSP) were assessed using the International Physical Fitness Scale (IFIS). Mann-Whitney and Wilcoxon U tests were used with significance set at p < .05. Significant differences were found between groups in FP (.000 p < .05), CRFP (.002 p < .05) and MSP (0.02 p < .05), with better perceptions existing in the EG. The estimated effect size was large, indicating real differences between the two groups (FP [CG] = 0.15; FP [EG] = 1.71; CRFP [CG] = 0.15; CRFP [EG] = 2.50; MSP [CG] = 1.14; MSP [EG] = 3 .34). The main findings revealed that the examined PA program had a significantly positive effect on FP both overall and in relation to its cardiorespiratory (CRF) and muscular strength (MS) components. A large effect size.
The objective was to analyze the effect of a physical activity (PA) program on fitness perception (FP) of schoolchildren from 9 to 11 years of age. This quasi-experimental study involved 24 children divided into experimental (GE) and control groups (GC). The FP, perceived cardiorespiratory fitness (CRFP) and perceived muscular strength (MSP) components were assessed with the International Physical Fitness Scale (IFIS). Mann-Whitney and Wilcoxon U tests were used; significance p < 0.05. Significant differences were found between groups in FP (.000 p < 0.05), CRFP (.002 p < 0.05) and MSP (0.02 p < 0.05) in favor of the GE. The estimated effect size is large to establish differences between groups (FP CG = 0.15, FP EG = 1.71, CRFP CG = 0.15, CRFP = 2.50, MSP CG = 1.14, MSP GA = 3 ,3,4). The main findings show that a PA program has a significantly positive effect on FP and cardiorespiratory fitness components (CRF) and muscular strength (MS) compared to the GC; A large effect size is also produced on differences between groups. Therefore, it is a strategy that could be applied in schools and can influence others areas such as psychological, academic and social.
