Gait velocity as a single predictor of adverse events in healthy seniors aged 75 years and older
Gait velocity as a single predictor of adverse events in healthy seniors aged 75 years and older
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DOI：
10.1093/gerona/60.10.1304
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发表时间：
2005-10-01
影响因子：
5.1
通讯作者：
Mayorga, LM
中科院分区：
文献类型：
--
作者：
Montero-Odasso, M;Schapira, M;Mayorga, LM
目的。尽管步态速度（GV）测量可以预测较差的结果，但很少有研究将其作为功能良好的老年人的单一测试。本研究的目的是评估GV是否足以预测健康老年人的不良事件，如因任何原因住院、需要照顾者、养老院安置、跌倒、骨折或死亡。我们是一项队列研究，包括102名75岁及以上功能良好的参与者。在基线时评估人口统计学特征、健康状况和功能能力，并随访不良结果。测量包括认知能力、日常生活活动和活动能力的评估。将行走10米中间8米所需的时间定义为GV。GV分为高GV组（bb0 1.1 m/s）、中GV组（1 ~ 0.7 m/s）和低GV组（< 0.7 m/s）。在基线时，三组的健康状况具有可比性，平均年龄为79.6±4岁。在24个月时，低GV组的不良事件发生率明显高于其他组。低GV是住院治疗（相对危险度[RR] = 5.9, 95%可信区间[0]，1.9-8.5）、需要照顾者（RR = 9.5, 95% Cl, 1.3-2.5）和新跌倒（RR = 5.4, 95% Cl, 2.0-4.3）的预测因子。在多元逻辑回归分析后，这些关联仍然显著。在门诊环境中测量GV可以检测出有不良事件风险的健康老年人。这些数据可能表明，简单的GV评估足以预测功能良好的老年人的不良事件。
Purpose. Although gait velocity (GV) measurement could predict poor outcomes, few studies regarding its usefulness as a single test in well functioning elderly persons have been pursued. The aim of this study was to asses whether GV could be sufficient to predict adverse events such as hospitalization for any cause, requirement for a caregiver, nursing home placement, falls, fractures, or death in healthy elderly persons.Methods. Ours was a cohort study comprising 102 well functioning participants aged 75 and older. Demographic features, health status, and functional capacity were assessed at baseline and followed for adverse outcomes. Measurements included evaluation of cognition, activities of daily living, and mobility. The time required to walk the middle 8 meters of 10 meters was defined as GV. Three GV groups were distinguished: high GV (> 1.1 m/s), median GV (1-0.7 m/s), and low GV (< 0.7 m/s).Results. At baseline, the three groups were comparable in their health status with an average age of 79.6 +/- 4 years. At 24 months, the low GV group had a significantly higher incidence of adverse events than did the other groups. Low GV was a predictor of hospitalization (relative risk [RR] = 5.9, 95% confidence interval [0], 1.9-8.5), requirement of a caregiver (RR = 9.5, 95% Cl, 1.3-2.5), and new falls (RR = 5.4, 95% Cl, 2.0-4.3). These associations remained significant after a multiple logistic regression analysis.Conclusions. GV measurement in the ambulatory setting may allow the detection of healthy elderly people at risk for adverse events. These data may suggest that simple assessment of GV is enough to predict adverse events in well functioning older persons.