成年人身体素质随BMI变化的特征

Characteristics of the changing of adult’s physical makings with BMI

利用2005年广东省国民体质监测20~59岁33 974个成人样本,采用百分位数法制定广东省成年人身体素质评价标准,并以1个单位为标准将BMI划分为15个组别,研究成年人身体素质随BMI变化特征。结果发现：身体素质随BMI变化表现出明显的性别差异;综合身体素质随BMI变化可分为3个阶段,但男女出现变化的界点不同;除握力、背力外,其他身体素质指标出现下降的界点一般在BMI大于20或21,但男女各指标下降的幅度不同。研究认为：以一个单位为标准的BMI分级法,可能是更好地反映成年人身体素质随体成分变化特征的方法。

By utilizing 33 974 ages 20-29 adult samples taken in Guangdong National Fitness Survey in 2005, and by using the percentile method, the authors established standards for evaluating physical makings of adults in Guangdong, divided BMI into 15 classes by basing the standard on 1 unit, studied the characteristics of the changing of adult＇s physical makings with BMI, and revealed the following findings： the changing of physical makings with BMI shows a significant gender difference; the changing of comprehensive physical makings with BMI can be di- vided into 3 stages, but males and females have different change division points; except grip power and back power, other physical making indexes usually have a deterioration division point when BMI is greater than 20 or 21, but various indexes of males and females have different deterioration amplitudes. In the authors＇ opinions, the BMI classification method that bases the standard on 1 unit is a method that can better reflect the characteristics of the changing of adult＇s physical makings with BMI.