- 期刊
身體組成與骨質密度之關聯性研究
Correlation Study of the Body Composition and Bone Mineral Density
摘要
本研究是使用橫斷面研究設計，回溯收集在2014～2017年到台中某教學醫院進行健康檢查之40～59歲的男性與女性之體檢資料。進行身體質量指數（Body Mass Index, BMI），體脂百分比（Percent Body Fat, PBF），脂肪質量（Fat Tissue Mass, FM），骨骼肌重（Skeletal Muscle Mass, SMM），腰臀圍比（Waist-hip Ratio, WHR），腰圍（Waist Circumference）與腰椎及髖關節骨質密度（Bone Mineral Density, BMD）之相關性探討。排除具有影響骨骼代謝病史，懷孕及創傷性骨折之個案。我們以G* Power 3軟體計算有意義樣本數，總共分析了40～49歲男性與女性各23人，50～59歲男性19人及女性25人。研究結果以多元線性迴歸統計，利用向後選擇（Backward Selection）工具，建立配適分析模式。統計的顯著水準定為p ＜ 0.1，以防止刪除可能的影響因素。結果發現不論男性或女性其年齡、脂肪質量與腰臀圍比皆會對腰椎與髖關節骨質密度造成顯著的影響。年齡越大及腰臀圍比越高者，其腰椎及髖關節骨質密度越低。相反的，脂肪質量越高者，腰椎及髖關節骨質密度越高。此外，體脂百分比越高者，右邊髖關節骨質密度越低。結論是脂肪質量越高有助於腰椎及髖關節骨密的累積。相反的，年齡，腰臀圍比與體脂百分比越高，對骨密的累積則有負面的影響。
並列摘要
The correlation between body composition and bone mineral density was explored in this study. The major subjects were majorly focused on either men or women aged among 40 to 59, and the data analysis technique was created according to the cross-sectional designation. The biological data of each subject was collected from his/her annual health examination from one teaching hospital in Taichung among 2014 to 2017. The biological data included body mass index (BMI), percent body fat (PBF), fat tissue mass (FM), skeletal muscle mass (SMM), waist-to-hip ratio (WHR), or waist circumference; and the bone density of lumbar vertebrae and hip joint were analyzed as major expectation indexes, whereas some subjects diagnosed as skeletal metabolism, pregnancy and traumatic fractures were excluded from this study. A total of 23 men and women aged 40-49, 19 men and 25 women aged 50-59 were analyzed in this study. Multivariate linear regression was used to establish a suitable analysis model on the basis of Backward Selection tool and the significant level was preset to p ＜ 0.1 to prevent possible influencing factors. Age, fat tissue mass and waist-to-hip ratio proved to have significant effect on lumbar and hip bone density for either male or female group. Old age or high waist-to-hip ratio proved to have low L-spine or hip joints bone mineral densities, In contrast, high body fat percentage was strongly correlated to low right hip joint mineral density. Therefore, fat tissue mass was positively correlated with the accumulation of lumbar spine and hip joints bone mineral density; and high age, waist-to-hip ratio or body fat percentage caused low L-spine and hip joints bone mineral density in this study.