Relationship between Muscle Strength, Muscle Mass and BMD in Postmenopausal Female of Zhuang in Guangxi Province of China

Peizhao Shi,Yuanxin Huang,Songyi Mo,Xinling Ma,Jiahui Li,Qingxiu Feng,Biao Li,Ziyang Fang,Jinhua Wang,Huiling Liu,Guangwu Huang,Xiaoyan Fang,Ling Tang

doi:10.4236/jbm.2022.102009

Abstract

Objective: To explore the correlation between muscle strength, muscle mass and bone mineral density (BMD) in Zhuang female population, body composition analysis and grip strength, and to analyze the possible influencing factors of BMD. Methods: 182 postmenopausal women were selected from Guangxi Province of China. Broadband ultrasound attenuation (BUA) was used to evaluate BMD. Grip dynamometer to assess muscle strength. Height, weight and muscle mass of each part were measured by body composition measuring instrument. Body mass index (BMI), skeletal muscle mass index (SMI) and limb skeletal muscle mass (SM) were calculated according to the measurement results. Results: BUA, grip strength and SMI in postmenopausal women of Zhuang nationality showed a decreasing trend with age (p p p r = 0.305, p 2 = 0.350). Only when age was not considered, the combination of grip strength and LSM was the optimal solution to reflect the calcaneal bone density of Zhuang women (R2 = 0.306). Conclusion: With the increase of age, the decline rate of muscle strength of postmenopausal Zhuang women in Guangxi is slower than that of BMD and muscle mass. SM can better reflect the BMD level of the body than SMI, and the LSM is the main influencing factor of BMD.

Highlights

Osteoporosis (OP) is a kind of systemic bone disease characterized by bone mass loss, damage to fine bone structure and brittle fracture (World Health Organization, WHO)
Broadband ultrasound attenuation (BUA), muscle strength, upper limb muscle mass, lower limb muscle mass, skeletal muscle mass (SM) and skeletal muscle mass index (SMI) varied between groups among age groups, generally associated with increased age and showed a downward trend (Table 1)
This study shows that the change of bone mineral density (BMD) of the calcaneus of postmenopausal females of Zhuang is faster than that of muscle strength, and there are significant differences in many indexes (p < 0.01)

Summary

Introduction

Osteoporosis (OP) is a kind of systemic bone disease characterized by bone mass loss, damage to fine bone structure and brittle fracture (World Health Organization, WHO). Middle-aged and elderly females due to the accelerated bone loss caused by decreased postmenopausal estrogen levels caused by osteoporosis, called postmenopausal osteoporosis (postmenopausal osteoporosis, PMO) [1]. Related studies show that PMO has become an important health problem for females over 50 years old in China [2]. Double-energy X-ray (DXA) bone density (BMD) examination is considered the “standard” for early-stage examination and diagnosis of OP. Quantitative ultrasound BMD examination technique, mainly calcaneus broadband ultrasound attenuation (BUA), evaluates the BMD by examining the ultrasonic amplitude of different bone mass and frequency of bone tissue. BUA is questioning the reliability of OP diagnosis than DXA, it is still considered a simple, economical and practical technology from the perspective of OP screening effectiveness of epidemiological research [4]

Methods

Results

Discussion

Conclusion