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首页> 外文期刊>Journal of Cachexia, Sarcopenia and Muscle >Age-dependent changes in physical performance and body composition in community-dwelling Japanese older adults
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Age-dependent changes in physical performance and body composition in community-dwelling Japanese older adults

机译：居住在社区的日本老年人的身体表现和身体组成随年龄的变化

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Abstract Background The aim of this study was to describe the age-dependent changes in the parameters of physical performance and body composition in Japanese older adults who are independently dwelling in the community. We also examined whether the age-dependent changes differ among physical performance and body composition parameters. Methods Cross-sectional data from 10 092 community-dwelling older adults (mean age 73.6 years; 5296 women) were analyzed. The measures of physical performance included hand-grip strength, the five-times-sit-to-stand test, and walking speed. Body composition parameters (body weight, fat mass, and appendicular skeletal muscle mass) were measured with a bioelectrical impedance analyser. Correlations between age and the physical performance and body composition parameters were tested. The T-scores of physical performance and body composition measurements were calculated and presented according to 5-year age groups to examine the differences in age-dependent changes in physical performance and body composition parameters. Results All physical performance measures significantly decreased with aging. The cumulative mean T-scores according to age group showed different age-dependent changes between body mass index (BMI) and appendicular skeletal muscle mass index (ASMI) (cumulative mean T-score change of BMI and ASMI of ?￠????5.7 to ?￠????2.9 and ?￠????12.7 to ?￠????12.1, respectively). The slope declines in age-associated changes were greater in grip strength ( ???2 = ?￠????0.77, 95% confidence interval = ?￠????0.82 to ?￠????0.76) for men and in walking speed ( ???2 = ?￠????0.95, 95% confidence interval = ?￠????0.99 to ?￠????0.90) for women. Conclusions The patterns of age-dependent decreases in physical performance measures differed among parameters and between sexes. There is a possibility of a difference in the age-related slope patterns among parameters; decreases in grip strength in men and walking speed in women may be more prominent with advancing age. Furthermore, the decrease in ASMI with age is more striking than that of BMI.
机译：摘要背景这项研究的目的是描述在日本独立居住的日本老年人的身体机能和身体组成参数随年龄的变化。我们还检查了取决于年龄的变化在身体表现和身体组成参数之间是否有所不同。方法分析来自10092名社区居民的老年人（平均年龄73.6岁; 5296名妇女）的横断面数据。身体表现的指标包括握力，五次站立测试和步行速度。使用生物电阻抗分析仪测量身体组成参数（体重，脂肪质量和阑尾骨骼肌质量）。测试了年龄与身体机能和身体成分参数之间的相关性。计算并根据5岁年龄组显示身体表现和身体成分测量值的T分数，以检查身体表现和身体成分参数随年龄变化的差异。结果所有物理性能指标均随着年龄的增长而显着下降。根据年龄组的累积平均T分数显示，体重指数（BMI）和阑尾骨骼肌质量指数（ASMI）之间存在不同的年龄依赖性变化（BMI和ASMI的累积平均T分数变化为）。分别为5.7至2.9和12.7至12.1。与年龄相关的变化的斜率下降，男性的握力更大（??? 2 =？0.77，95％置信区间=？0.82至？0.76）。妇女的步行速度（2 = 0.95，95％置信区间= 0.99至0.90）。结论身体绩效指标中年龄相关性下降的模式在参数之间和性别之间有所不同。参数之间与年龄相关的坡度模式可能会有所不同;随着年龄的增长，男性握力的下降和女性的步行速度可能会更加突出。此外，随着年龄的增长，ASMI的下降比BMI的下降更为显着。

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