Sergi Giuseppe, Perissinotto Egle, Toffanello Elena D, Maggi Stefania, Manzato Enzo, Buja Alessandra, Coin Alessandra, Frigo Anna C, Inelmen Emine M, Enzi Giuliano
Department of Medical and Surgical Sciences, Division of Geriatrics, University of Padova, Padova, Italy.
J Am Geriatr Soc. 2007 Dec;55(12):2023-9. doi: 10.1111/j.1532-5415.2007.01460.x. Epub 2007 Nov 14.
To test the association between body mass index (BMI) and lower extremity motor performance in elderly people.
Multicenter, cross-sectional, observational study.
A sample of individuals aged 65 and older recruited for the baseline survey of the Italian Longitudinal Study on Aging.
Two thousand six hundred seventy-two individuals (1,436 men, 1,236 women) independent with transfers and toileting and independent or requiring assistance for bathing or dressing.
Motor function was assessed using a Motor Performance Test (MPT), with a set of six tasks exploring lower extremity performance (LEP): rising once from a chair, turning in a half circle, tandem walking, standing on one leg, stair climbing, and walking 5 m.
The highest prevalence rates of difficulty in performing the tasks occurred in men and women, respectively, in tandem walking (14%, 28%), stair climbing (17.0%, 43%) and walking 5 m (15%, 30%). In both sexes, moderate (men: odds ratio (OR)=1.99, 95% confidence interval (CI)=1.16-3.43; women OR=2.07, 95% CI=1.18-3.65) and severe obesity (men: OR=3.45, 95% CI=1.21-9.89; women: OR=3.16, 95% CI=1.43-6.95) were each independently associated with overall motor performance impairment after adjusting for age, smoking, and comorbidity. Best performance was generally observed in the normal-weight and overweight groups.
The results confirm that, in both sexes, overweight is not related to motor impairment. Only in women, low BMI is associated with higher probability of overall motor performance impairment. These data suggest that moderate obesity should be distinguished from severe obesity when assessing the relationship between BMI and LEP.
检验老年人身体质量指数（BMI）与下肢运动表现之间的关联。
多中心、横断面观察性研究。
从意大利纵向衰老研究基线调查中招募的65岁及以上个体样本。
2672名个体（1436名男性，1236名女性），在转移和如厕方面独立，在洗澡或穿衣方面独立或需要协助。
使用运动表现测试（MPT）评估运动功能，该测试包含一组六项任务，用于探索下肢表现（LEP）：从椅子上起身一次、转半圈、 tandem行走、单腿站立、爬楼梯和步行5米。
在执行任务时，难度发生率最高的分别是男性和女性的tandem行走（14%，28%）、爬楼梯（17.0%，43%）和步行5米（15%，30%）。在两性中，中度肥胖（男性：优势比（OR）=1.99，95%置信区间（CI）=1.16 - 3.43；女性OR = 2.07，95% CI = 1.18 - 3.65）和重度肥胖（男性：OR = 3.45，95% CI = 1.21 - 9.89；女性：OR = 3.16，95% CI = 1.43 - 6.95）在调整年龄、吸烟和合并症后均与整体运动表现受损独立相关。正常体重和超重组通常表现最佳。
结果证实，在两性中，超重与运动障碍无关。仅在女性中，低BMI与整体运动表现受损的较高概率相关。这些数据表明，在评估BMI与LEP之间的关系时，应区分中度肥胖和重度肥胖。
