Optimal Cutoffs of Grip Strength for Definition as Weakness in the Elderly

• 作者: Jiazhong Wang Qi Guo Renwei Dong
• 来源期刊: 生物科学与医学(英文)
• 学科: 医学
• 关键词: Cutoffs ELDERLY PEOPLE GRIP Strength WEAKNESS
• 年，卷（期）: 2014,（9）
• 页码范围: 14-18
• 页数: 5页
• 分类号: R73

摘要

Objective:?To indentify Optimal cutoffs of grip strength for definition as weakness in the elderly. Methods: Our study population comprised 1317 subjects (mean ± SD age: 67.6 ± 6.0 years;44.3% men) from the Hangu area of Tianjin, China. Data collection includes general physical examination, biochemical indicators and questionnaire. Mobility limitation was defined as a 4-m walking speed < 0.8 m/s and grip strength represents muscle strength. According to the ROC curve model, the cut-off point of grip strength was calculated, when mobility limitation was selected as the target variables. Results: According to the results of ROC curve, In man, grip strength is lower than 32.45 kg, the strength is weaker, Sensitivity is 79.7% and Specificity is 64.9%, the AUC is 0.764 (p < 0.001);In women, grip strength is lower than 18.20 kg, the strength is weaker, Sensitivity is 53.3% and Specificity is78.1%, the AUC is 0.703 (p < 0.001). Conclusions: Cut points for weakness derived from this large, diverse sample of older adults may be useful to identify populations who may benefit from interventions to improve muscle strength and function.