Healthy Aging North Dakota (HAND), North Dakota State University, 1805 NDSU Research Park Dr. N., Fargo, ND, 58102, USA.
Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, ND, USA.
Aging Clin Exp Res. 2023 Nov;35(11):2491-2498. doi: 10.1007/s40520-023-02516-6. Epub 2023 Aug 3.
Recently developed absolute and body size normalized handgrip strength (HGS) cut-points could be used individually and collectively to predict mobility problems and falls.
We examined the associations of (1) each absolute and normalized weakness cut-point, (2) collective weakness categories, and (3) changes in weakness status on future falls in older Americans.
The analytic sample included 11,675 participants from the 2006-2018 waves of the Health and Retirement Study. Falls were self-reported. Men were classified as weak if their HGS was < 35.5-kg (absolute), < 0.45 kg/kg (body mass normalized), or < 1.05 kg/kg/m (body mass index normalized). While, women were considered weak if their HGS was < 20.0-kg, < 0.337 kg/kg, or < 0.79 kg/kg/m. Collective weakness categorized those below 1, 2, or all 3 cut-points. The collective weakness categories were also used to observe changes in weakness status over time.
Older Americans below each absolute and normalized cut-point had greater odds for future falls: 1.23 (95% confidence interval (CI): 1.15-1.32) for absolute weakness, 1.20 (CI 1.11-1.29) for body mass index normalized weakness, and 1.26 (CI 1.17-1.34) for body mass normalized weakness. Persons below 1, 2, or all 3 weakness cut-points had 1.17 (CI 1.07-1.27), 1.29 (CI 1.18-1.40), and 1.36 (CI 1.24-1.48) greater odds for future falls, respectively. Those in some changing weakness categories had greater odds for future falls: 1.26 (CI 1.08-1.48) for persistent and 1.31 (CI 1.11-1.55) for progressive.
Collectively using these weakness cut-points may improve their predictive value.
We recommend HGS be evaluated in mobility and fall risk assessments.
最近开发的绝对和身体大小标准化握力（HGS）切点可单独和集体用于预测移动问题和跌倒。
我们检查了（1）每个绝对和标准化弱点切点，（2）集体弱点类别，以及（3）在美国老年人未来跌倒中的弱点状态变化之间的关联。
分析样本包括来自健康与退休研究 2006-2018 年波的 11675 名参与者。跌倒情况是自我报告的。如果男性的 HGS 小于 35.5-kg（绝对），小于 0.45kg/kg（体重归一化）或小于 1.05kg/kg/m（体重指数归一化），则将其归类为虚弱。而，如果女性的 HGS 小于 20.0-kg，小于 0.337kg/kg 或小于 0.79kg/kg/m，则将其归类为虚弱。集体弱点将那些低于 1、2 或所有 3 个切点的人归类为弱点。还使用集体弱点类别来观察随着时间的推移弱点状态的变化。
每个绝对和归一化切点以下的美国老年人未来跌倒的可能性更大：绝对弱点为 1.23（95%置信区间（CI）：1.15-1.32），体重指数归一化弱点为 1.20（CI 1.11-1.29），体重归一化弱点为 1.26（CI 1.17-1.34）。低于 1、2 或所有 3 个弱点切点的人未来跌倒的几率分别为 1.17（CI 1.07-1.27），1.29（CI 1.18-1.40）和 1.36（CI 1.24-1.48）。处于某些变化中的弱点类别的人未来跌倒的几率更高：持续性为 1.26（CI 1.08-1.48），进行性为 1.31（CI 1.11-1.55）。
集体使用这些弱点切点可以提高其预测价值。
我们建议在移动性和跌倒风险评估中评估 HGS。
