靑年男女의 體組成과 最大酸素性能力에 關한 硏究

A Study on the Maximal Cardio-Respiratory Function and Body Composition in Young Korean Adults of Both Sexes

&nbsp;&nbsp;The purpose of this study was focused on the characteristics of the maximal cardia-respiratory function and body composition in young Korean adults of both sexes.<BR>&nbsp;&nbsp;The items in physique were body height, body weight, girth of chest and sitting height.<BR>&nbsp;&nbsp;VO₂ max was determined by an exhaustive running test on a motor-driven treadmill. A three-min warm-up of running at 160m/min was given to men and 130m/min to women with a constant slope of two degrees. After ten-min rest, the subjects ran at the same speed with a zero degree grade for the first three minute. Thereafter the grade was increased by two degree every minute until exhaustion.<BR>&nbsp;&nbsp;Body density was determined by underwater-weighing method. Water temporature was approximately 36℃. Fat and LBM were computed from body density, employing the revised formula of Brozek et al.<BR>&nbsp;&nbsp;Residual lung volume was measuraed by vital capacity method. Eleven healthy young Korean men and thirteen women volunteered as subjects.<BR>&nbsp;&nbsp;The following results of the measurement were obtained.<BR>&nbsp;&nbsp;1. The means for the percent fat in youngmen and women were 13.1±4.21% and 21.6±4.43%, respectively.<BR>&nbsp;&nbsp;2. The means for the maximal oxygen uptake (VO₂max/wt) in young men and women were 2.99±0.411ℓ/min(49.3±5.93 ml/㎏/min) and 2.07±0.364 ℓ/min(39.4±4.29 ml/㎏/min), respectively.<BR>&nbsp;&nbsp;3. The means for the maximum ventilation per minute and maximum heart rate per minute in young men and women were 102.0±20.80ℓ/min and 190.0±7.9 bpm, 70.1±11.2 ℓ/min and 187.6±7.2 bpm, respectively.<BR>&nbsp;&nbsp;4. Correlation coefficients between absolute VO₂ max versus % fat and LBM were r=-0.42, r=0.63 (P＜0.01), respectively.