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采用生物电阻抗 ( BIA)法对 12 5 1名青年 (男 2 48例、女 10 0 3例 ,18～ 2 4岁 )人体脂肪含量进行了测定 ,男性体脂 ( F% ) ( 12 .0± 3 .4) ,女性体脂 ( F % ) ( 2 5 .0± 5 .99)。以男性 F % >2 0、女性 >3 0为判断标准 ,则男性肥胖发生率为 11.3 %、女性为 2 2 .2 %。与体质量法比较 ,BIA判断的肥胖发生率 ,男性低 ,女性一致 ;若与体块指数 ( BMI)法比较 ,男性、女性肥胖发生率均高。BIA法已经过人体密度法标定 ,其测量结果能客观、准确地反映全身脂肪含量。
Bioelectrical impedance (BIA) method was used to determine the body fat content of 1,251 young people (2 48 males, 103 females, 18 to 24 years old). Male body fat (F%) (12.0) ± 3 .4), female body fat (% F) (25.0 ± 5.99). Using male F% >2 0 and female >3 0 as the criterion, the incidence of male obesity was 11.3% and that of female was 22.2%. Compared with the body mass method, the incidence of obesity judged by BIA is lower in men and the same in women; if compared with the body mass index (BMI) method, the incidence of obesity in men and women is high. The BIA method has been calibrated by the human body density method, and its measurement results can objectively and accurately reflect the body fat content.