Resumen

SALAS PAREDES, Alba et al. Sport habits: effect on physical-motor fitness, and cardiorespiratory of school children. Rev. Venez. Endocrinol. Metab. [online]. 2016, vol.14, n.2, pp.128-136. ISSN 1690-3110.

Objective: Compare the effects of sport habits on physical and motor aptitude as well as cardiorespiratory fitness in school children. Methods: Fifty-eight male school children with ages between 7,5 to 9,5 years old were studied (33 with regular sport habits activities and 25 controls). The clinical evaluation included: family history, personal, psychobiological habits, anthropometry and blood analysis. Each child participated in a 1000 meters´ race to test his physical and motor fitness. The performance was ranked as deficient, regular, average, good, and excellent. The maximum volume of oxygen (VO_2máx) was determined in order to qualify each participant according to his aerobic capacity: low, regular, average, good, and excellent. The cardiac functional capacity was evaluated through treadmill stress test by the calculation of the chronotropic and the evaluation of parasympathetic recovery index. Results: The average time in strength test for the group with sport habits (366,27±38,20 sec) was significantly lower (p<0,001). In term of the physical and motor fitness, children with sport habits performed significantly better (p< 0,005). Moreover, the sport habits group presented a maximum consumption of oxygen significantly greater 45,19 ± 5,50 mL/kg/min than the controls 37,82±8,20 mL/kg/min (p<0,001). By categorizing VO_2max, a significantly higher frequency of good and excellent aerobic capacity was found in the group with sport habits (p<0,002). The treadmill stress test and the metabolic parameters no showed significant difference. Conclusions: School children with sport habits showed better aerobic capacity than those with a sedentary lifestyle. The motor function and biochemical tests showed similar results.

Palabras clave : Physical and motor fitness; maximum volume of oxygen; parasympathetic recovery index.

        · resumen en Español     · texto en Español     · Español ( pdf )