The main purpose of this study was to investigate the variables of body and biological characteristics of 9-12 year-old boys to establish the estimated model of maximal oxygen intake(VO2max).There were 64 boys aged 9 to 12 year-old to participate in the study. The average age is 11.23±8.5 year-old and the body height and weight were 146.49±7.59 cm, 41.37±10.46 kg, respectively. All data were drawn by gradually cycling ergmeter work and physiological measures in the laboratory at National Pin-tung Teachers College. The physiological and physique variables included, body height and weight, body mass index (BMI), percent body fat drawn from bioelectric insistence (BIA) and subcutaneous skinfolds for all subjects. The averaged VO2max was 39.10±6.41 ml.kg-1.min-1 for the group. Data was analyzed by the Pearson Product Moment correlation method and for variables relationship and multiple regression analysis for constructed predicted model. Results were shown as following: First of all, most of the body characteristic variables were significantly correlated with VO2max (p<.01), except for some physiocogical variables as body height, and blood pressure. There was the most negative significant relationship between triceps thickness and maximal oxygen intake (r=-.81, p<.01), and maximal oxygen intake was correlated with percent body fat by drawing BIA analysis (r=-.80, p<.01). According to results of the study, the maximal oxygen intake was influenced by age, body height and weight, percent body fat or skinfold thickness, and resting blood pressure. Furthermore, we concluded that models useful predicted model of VO2max was established for 9-to-12-year old boys, and those could be applied to estimate the maximal oxygen intake with those variables.
The main purpose of this study was to investigate the variables of body and biological characteristics of 9-12 year-old boys to establish the estimated model of maximal oxygen intake(VO2max).There were 64 boys aged 9 to 12 year-old to participate in the study. The average age is 11.23±8.5 year-old and the body height and weight were 146.49±7.59 cm, 41.37±10.46 kg, respectively. All data were drawn by gradually cycling ergmeter work and physiological measures in the laboratory at National Pin-tung Teachers College. The physiological and physique variables included, body height and weight, body mass index (BMI), percent body fat drawn from bioelectric insistence (BIA) and subcutaneous skinfolds for all subjects. The averaged VO2max was 39.10±6.41 ml.kg-1.min-1 for the group. Data was analyzed by the Pearson Product Moment correlation method and for variables relationship and multiple regression analysis for constructed predicted model. Results were shown as following: First of all, most of the body characteristic variables were significantly correlated with VO2max (p<.01), except for some physiocogical variables as body height, and blood pressure. There was the most negative significant relationship between triceps thickness and maximal oxygen intake (r=-.81, p<.01), and maximal oxygen intake was correlated with percent body fat by drawing BIA analysis (r=-.80, p<.01). According to results of the study, the maximal oxygen intake was influenced by age, body height and weight, percent body fat or skinfold thickness, and resting blood pressure. Furthermore, we concluded that models useful predicted model of VO2max was established for 9-to-12-year old boys, and those could be applied to estimate the maximal oxygen intake with those variables.