目的运用生物电阻抗分析法,测量辽宁汉族成人身体各部份脂肪含量,提出适合于辽宁汉族群体的脂肪含量基准值,进而探讨辽宁汉族成人的脂肪分布特点与规律。方法在知情同意的前提下,随机抽取父母均为汉族的辽宁汉族健康成人作为研究对象,共选取1034人(男性379例,女性655例)。应用体成分分析仪,对所有受试者进行检测,得出脂肪总量、去脂体重、内脏脂肪等级、左上肢(左下肢、右上肢、右下肢、躯干)脂肪量等与脂肪相关的各项数值,进而推算出体脂肪率、左上肢(左下肢、右上肢、右下肢、躯干)脂肪率。结果采用SPSS统计学软件,进行独立样本t检验和方差分析处理。结果多数年龄段,男性的脂肪总量、四肢脂肪量、躯干脂肪量均低于女性(P〈0.01),而男性的内脏脂肪等级却明显高于女性(尸〈0.01)。男性脂肪总量、各部位脂肪含量随年龄增长,出现两次峰值,分别于40岁年龄组和60岁及以上年龄组,男性内脏脂肪等级呈持续增长状态。女性脂肪总量、上肢脂肪含量、躯干脂肪含量随年龄增加,女性下肢脂肪增幅呈现先增高后降低状态,峰值在50岁年龄组。女性内脏脂肪等级除50岁年龄组略有下降外,总体也呈上升趋势。结论辽宁汉族成人脂肪总量、四肢及躯干脂肪含量,男性均低于女性;而内脏脂肪等级,则男性高于女性。辽宁汉族成人脂肪含量随年龄的增长发生变化,总体呈上升趋势,但不同性别、不同部位的脂肪变化趋势略有不同。
Objective To obtain the fat base value and the fat distribution characteristics of Han adults in Liaoning by measuring their fat content with a bioelectrical impedance method. Methods We randomly selected 1034 healthy adults whose parents are Han in Liaoning (379 males, 655 females). They had signed the informed consent. We detected all subjects with the body composition analyzer and concluded the total fat, to fat weight, visceral fat level, left upper limb (left lower limb, right upper limb, right lower limb, trunk) fat content, then worked out the body fat ratio, and left upper limbs (left lower limb, right upper limb, right lower limb, trunk) fat ratio. All the collected data were analyzed with SPSS (statistical software) and processed by independent sample t-test and variance analysis. Results In the majority, the total (limbs or trunk) fat content of males was lower than females (P 〈 0. 01 ) , while male visceral fat level was obviously higher than females (P 〈 0.01 ). In males, the total and each part fat content increased with age, which were two peaks, one in 40 age group,and another in 60 and above age group. The male visceral fat level was in a growing state all the times. In females, the total fat content and upper limbs and trunk fat content were increasing all the times, and the lower limbs fat content' s peak was in 50 age group. Female visceral fat level was in rising trend except 50 age group. Conclusion The male total fat and trunk, limb fat contents of Han nationality adults in Liaoning were lower than females, but the male visceral fat level was higher than females. Liaoning Han adult fat content changed with age, and the general was rising, but it was somewhat different in different genders or different parts.