云南省五个民族学生皮褶厚度与体成份发育规律探讨

An Investigation on Body Composition Changes among Five Ethnic Student Groups in Yunnan Province

1995年对我省汉、哈尼、纳西、傈僳、佤5个民族学生的肱三头肌、肩胛下角皮褶厚度，瘦体重及体脂量4个项目进行发育规律特征分析。结果表明，该4个项目的发育在7－12岁均随年龄增长而递增，性别间无发育交叉年龄。皮褶厚度及体脂量为女生发育好于男生；瘦体重是男生好于女生，尤以汉族男生下肢爆发力成绩最佳；但体脂量及皮褶厚度发育最差的佤族，其速度、耐力、运动项目成绩为最好；说明体成份及皮褶厚度除与人体形态发育有关外，也反映出肌肉在工作中的力量水平与速度运动素质有关联。有助于体育教学利用学生的体成份和皮褶厚度指标发育的最好时机施教作参考。

An investigation on the students' physique and health was conducted in 1995 among students of Han ,Hani,Naxi ,lisu and Wa nationalities . The results indicated that skinfold thickness at brachial triceps and inferior angle of scapula, lean bodymass and body fat increased with age in students ages 7 ~ 12,and there was no development age crossing between girls and bodyfat than did male students ,whereas the latter had a higher lean body mass .The explosive strength of legs was the strongest inmale students of the Han nationality . whose lean body mass showed the greatest increase The Wa nationality students in whichthe least changes were observed in skinfold thickness and body fat had the best speed and endurance in games .