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Abstract
The aim of this research was to evaluate health-related physical fitness using the ALPHA-Fitness battery in upper basic education students. A quantitative, non-experimental, cross-sectional, and descriptive study was conducted with a sample of 38 students (22 females and 16 males). The analysis included descriptive and inferential statistics to characterize the variables and determine differences according to sex. The results showed mean values of 21.2 ± 2.98 kg/m² for body mass index, 73.1 ± 7.42 cm for waist circumference, and 33.3 ± 2.83 ml/kg/min for estimated VO?max. Statistically significant differences according to sex were identified in strength, speed–agility, and cardiorespiratory fitness tests (p < 0.05). Likewise, associations were observed between body composition and physical performance, especially in strength, speed, and endurance capacities. It is concluded that, although the students presented generally acceptable functional levels, aerobic capacity and body composition constitute critical components related to health. These findings highlight the need to implement systematic physical activity programs within the school context aimed at promoting healthy lifestyles.
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