Objective To investigate the correlation between lean body mass(LBM)and digit ratio(2D∶4D)of college students in Ningxia.Methods A total of 838 college students(412 males and 426 fe-males)were randomly selected as the research objects.Bioelectrical impedance analysis(BIA)was used to de-termine the distribution of body weight,height,total body water(TBW),intracellular water(ICW),extracellu-lar water(ECW),protein content,bone mineral content(BMC),skeletal muscle mass(SMM),body mass index(BMI)and basal metabolic rate(BMR).At the same time,the photos of the two palms were taken,and the 2D∶4D of the left and right hand was measured and calculated by computer image software.Pearson correla-tion analysis and unary linear regression analysis were used to analyze the correlation between each LBM and 2D∶4D.Results All the detection indicators of LBM,BMI and BMR among Ningxia universty students were significantly higher in males than in females,with statistical significance(P＜0.05).The 2D∶4D of left hand and right hand were significantly higher in female than in male,the difference was statistically signifficant(P＜0.05).There was no correlation between 2D∶4D for all body composition indexes(P＞0.05).Conclu-sion There are significant gender differences in both LBM and 2D∶4D in Ningxia college student,sugges-ting that the level of sex hormone metabolism may affect the distribution of both,but there is no correlation between them,suggesting that there may not be a common developmental basis.
关键词
瘦体组织/基础代谢率/指长比/生物电阻抗/相关性分析
Key words
Lean body mass/Basal metabolic rate/Digit ratio/Bioelectrical impedance/Corre-lation analysis
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