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| 正常体重中年人体脂含量与腰椎和髋部骨密度相关性研究 |
| Study on the correlation between body fat content and bone mineral density of lumbar spine and hip in Normal weight middle-aged people |
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| DOI：10.3969/j.issn.1006-7108.2020.06.021 |
| 中文关键词: 体脂含量 体质量指数 骨密度 |
| 英文关键词:body fat content body mass index bone density |
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| 中文摘要: |
| 目的 探讨正常体重中年人体脂含量与腰椎和髋部骨密度(bone mineral density, BMD)相关性。方法 选取499名成年受试者(平均年龄48.7岁)，通过双能X线吸收测定法测量受试者BMD和体脂含量，采用多元线性回归分析和协方差分析评估BMD与体脂含量之间的关联。结果 按体脂百分比截止值进行分组。体质量指数为18.5~22.9 kg/m2的男性临界值分别为20.6％和25.7％，而女性的临界值分别为33.4％和36％。体脂百分比往往与BMD呈负相关。身体脂肪百分比的增加与正常体重中年人的BMD降低有关。正常体重人群体脂百分比对BMD的影响在男性中比女性更明显。结论 体重正常的中年男性和女性体脂百分比与骨密度呈负相关，这种关联在男性中比在女性中更为突出。 |
| 英文摘要: |
| Objective To explore the the correlation between body fat content and bone mineral density of lumbar spine and hip in Normal weight middle-aged people. Methods This study included 499 adults (mean age, 48.7 years). BMD and body fat were measured using dual-energy X-ray absorptiometry. Multiple linear regression analyses and analysis of covariance were used to assess the association between BMD and body fat. Body fat percentage was grouped by cut-off values. Results Grouped according to the cut-off value of body fat percentage. The cut-off values were 20.6% and 25.7% for men with a body mass index of 18.5-22.9 kg/m2, while the cut-off values were 33.4% and 36% for women. Body fat percentage tended to be negatively associated with BMD. Increased body fat percentage was associated with reduced BMD in normal-weight middle-aged adults. The effects of body fat percentage on BMD in normal-weight individuals were more pronounced in men than in women. Conclusion There was a negative correlation between BMD and body fat percentage in middle-aged men and women with normal body weight. This association was more prominent in men than in women. |
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