The Characteristics Of Han Adults' Body Composition Of Jinzhou

ObjectivesBy learning the distribution of the adults'body composition in Jinzhou, to investigate the differences between gender and the changing trend along with ages of Han adults` body composition in Jinzhou City furtherly. By this research, it will provide references for evaluating the physical development of Han people in Jinzhou City scientifically, guiding healthy lifestyle and physical exercise reasonably, searching the dangerous factors of the disease correlated with the body composition, and preventing the disease.MethodsWith informed consent , 1199 Han healthy adults of Jinzhou were randomly selected, whose parents must be Han people. Those 1199 adults (433 males, 766 females) were selected by body composition analyzer, including all subjects'height,weight, BMI,body fat mass, trunk fat mass, left upper limb fat mass, left lower limb fat mass, right upper limb fat mass, and right lower limb fat mass, body muscle mass,trunk muscle mass, left upper limb muscle mass, left lower limb muscle mass, right upper limb muscle mass, and right lower limb muscle mass, body moisture content, intracellular fluid, extracellular fluid, protein content, and the measurement of bone content. All the results were input into the SPSS statistical package, and then statistics processing were carries on, such as the t test, analysis of variance, descriptive statistics, statistical analysis, etc. ResultsMen were higher than women (P <0.01) in the aspects of height, weight, overall muscle mass, body muscle mass, limb muscle mass, body water, intracellular fluid, extracellular fluid, protein, and bone volume. However, men's total fat mass, trunk fat mass and limb fat mass were lower than women (P <0.01); fat content in men's different parts increased with age, which had two peaks—about at 40 and 60 years old. Overall, the fat of men's lower limbs had been decreasing, while the fat of women's upper limbs had been increasing, and the fat of women's lower limbs took on a wave-shaped increase, reaching the peak at the age of 50 or so and the overall trend increasing. However, men's overall water, intracellular fluid, bone mass and muscle mass took on a declining trend with age, while those of women increased firstly and then decreased. Women's protein content changed with age, which was similar to men, and the muscle mass of both men's and women's lower limbs decreased with age. In addition, the muscle content of both men's and women's upper limbs and trunks increased firstly and then decreased, reaching the peak at about 40 years old for men and at about 50 years old for women, but the growth rate of women was higher than that of men.The indicators of Han adults` body composition of Jinzhou are compared with Guangzhou and Fuzhou. It is showed that all the indicators have significantly differences except the female Han adults` total fat content between Jinzhou and Fuzhou. (P <0.05)Conclusions1. Man's indicator in all age groups are higher than women except fat content.2. The composition of the han adult of JinZhou district change with the age growth, particularly among the group of 40-year-old.3. The composition of the han adult have significant different between the FouZhou,GuangZhou and JinZhou district.