Acta Anthropologica Sinica ›› 2021, Vol. 40 ›› Issue (06): 1012-1022.doi: 10.16359/j.cnki.cn11-1963/q.2020.0045

• Research Articles • Previous Articles     Next Articles

Muscle distribution and its relationship with age in Zhuang-Dong ethnic groups in China

YU Huixin1(), LI Yonglan1,2(), ZHENG Lianbin3   

  1. 1. College of Ethnology and Anthropology, Inner Mongolia Normal University, Hohhot 010022
    2. College of life Sciences and Technology, Inner Mongolia Normal University, Hohhot 010022
    3. College of life Sciences, Tianjin Normal University, Key Laboratory of Animal and Plant Resistance, Tianjin 300387
  • Received:2020-01-15 Revised:2020-09-04 Online:2021-12-15 Published:2020-10-28
  • Contact: LI Yonglan E-mail:404548599@qq.com;liyonglan2005@126.com

Abstract:

In order to know the characteristics of the Zhuang-Dong ethnic groups distribution of muscle and discussed Zhuang-Dong ethnic groups each place the basic characteristics of the variation of the muscle mass along with the age growth, using the body fat meter adopting bioelectrical impedance analysis of 13 Zhuang-Dong ethnic groups,which include five provinces of Hainan, Guizhou, Guangxi, Yunnan and Hunan. The total sample size is 5098 (2126 males and 2972 females), and the grip strength of the left and right hands of 2685 males and 3793 females is measured with a grip dynamometer. The results show that the muscle mass of male and female in Zhuang-Dong ethnic groups is close to the standard, and the muscle mass of upper and lower limbs is the standard. Both male and female have the largest trunk muscle mass, followed by lower limb muscle mass, and the smallest upper limb muscle mass. Total muscle mass, limb muscle mass and trunk muscle mass of men are greater than those of women. There are statistically significant differences in total muscle mass, trunk muscle mass, upper limb muscle mass and right lower limb muscle mass among the three age groups of males, while the left lower limb muscle mass is close to each other. There are statistically significant differences in total muscle mass, limb muscle mass and trunk muscle mass among the three age groups. In men, except for the muscle mass of the left lower extremity, the other five muscle mass indexes shows significant negative correlation with age. Total muscle mass and trunk muscle mass are negatively correlated with age in women, but there is no significant negative correlation between limb muscle mass and age. The muscle mass of Zhuang -Dong ethnic groups is less than that of northern ethnic group, which has the characteristics of southern ethnic group in China. Among the southern ethnic groups, the Zhuang-Dong ethnic groups have moderate muscle mass in males and slightly more in females.

Key words: Somatometry, Body muscle mass, Zhuang-Dong ethnic groups, Body composition

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