Chinese Journal of Tissue Engineering Research ›› 2021, Vol. 25 ›› Issue (27): 4277-4282.doi: 10.12307/2021.182

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Correlation between hip geometric mechanics and lifestyle habits in postmenopausal women

Ye Yunjin, Ge Jirong, Chen Juan, Li Jianyang, Chai Hao, Xie Lihua   

  1. 1Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, Fujian Province, China; 2Fujian University of Traditional Chinese Medicine, Fuzhou 350122, Fujian Province, China
  • Received:2020-10-12 Revised:2020-10-14 Accepted:2020-11-11 Online:2021-09-28 Published:2021-04-10
  • Contact: Ge Jirong, MD, Researcher, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, Fujian Province, China
  • About author:Ye Yunjin, Master, Fujian Academy of Chinese Medical Sciences, Fuzhou 350003, Fujian Province, China
  • Supported by:
    the General Program of National Natural Science Foundation of China, No. 81674007 (to GJR), No. 81873323 (to XLH); Public Welfare Project in Fujian Province, No. 2018R1035-4 (to GJR), No. 2018R1035-7 (to YYJ); the Natural Science Foundation of Fujian Province, No. 2018J01856 (to XLH)

Abstract: BACKGROUND: There are many reports about bone mineral density in the study of osteoporosis, but it still cannot fully explain the problems of bone strength and fracture. This paper studies bone strength through hip mechanics, hoping to supplement the existing research.  
OBJECTIVE: To understand the impact of postmenopausal women’s lifestyle habits on hip geometry and mechanics.
METHODS:  Totally 648 postmenopausal women were selected. The subjects used dual-energy X-ray digital bone density to scan the lumbar spine (L1-L4) and left hip joint (total hip, proximal femur), and obtained the corresponding bone mineral density value and five parameters of hip geometric mechanics: bone cross-sectional area, cross-sectional rotational inertia, cross-sectional flexural modulus, cortical thickness and buckling stress ratio. Linear analysis was conducted to analyze the correlation of lifestyle habits with bone mineral density and hip geometry mechanics.  
RESULTS AND CONCLUSION: (1) Analysis of factors affecting bone density: Age, drinking more than two cups of coffee per day, and the number of pregnancies were negatively correlated with bone density (P < 0.05); body weight, body mass index, and moderate-intensity exercise were positively correlated with bone density (P < 0.05). (2) Factor analysis of affecting hip geometric mechanics: age and daily coffee consumption were negatively correlated with cross-sectional area, cross-sectional rotational inertia, cross-sectional flexural modulus, and cortical thickness (P < 0.05). Age, daily coffee consumption and less than one cup of milk per day were positively correlated with buckling stress ratio (P < 0.05). Body weight, height, and sunshine duration greater than 3 hours and moderate-intensity exercise were positively correlated with cross-sectional area, cross-sectional rotational inertia, cross-sectional flexural modulus, cortical thickness (P < 0.05). Body mass index was negatively correlated with buckling stress ratio (P < 0.05). (3) It is indicated that drinking coffee every day is not conducive to bone health; proper exercise can help bone health; sunshine time greater than 3 hours can increase bone strength.


Key words: sunshine time, drinking coffee, exercise, lifestyle habits, hip geometric mechanics

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