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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >A Comparison of Straight- and Curved-Path Walking Tests Among Mobility-Limited Older Adults
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A Comparison of Straight- and Curved-Path Walking Tests Among Mobility-Limited Older Adults

机译：行动受限的成年人的笔直和弯曲路径步行测试的比较

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Background. Habitual gait speed (HGS) and the figure-of-8 walking test (F8WT) are measures of walking ability that have been associated with mobility outcomes and disability among older adults. Our objective was to contrast the physiologic, health, and behavioral attributes underlying performance of these two walking tests among older adults with mobility limitations.Methods. HGS and F8WT were the primary outcomes. HGS was measured as time needed to walk a 4-m straight course at usual pace from standstill position. F8WT was measured as time to walk in a figure-of-8 pattern at self-selected usual pace from standstill position. Separate multivariable linear regression models were constructed that predicted walking performance. Independent variables included physiologic, cognitive-behavioral health attributes, and demographic information.Results. Of 430 participants, 414 completed both walking tests. Participants were 67.7% female, had a mean age of 76.5+7.0 years and a mean of 4.1 + 2.0 chronic conditions. Mean HGS was 0.94 + 0.23 m/s and mean F8WT was 8.80+2.90 seconds. Within separate multivariable linear regression models (HGS: R2 = .46, p_(model) < .001; F8WT: R2 = .47, p_(model)< .001), attributes statistically significant within both models included: trunk extension endurance, ankle range of motion, leg press velocity at peak power, executive function, and sensory loss. Cognitive and physiologic attributes uniquely associated with F8WT were cognitive processing speed and self-efficacy, and reaction time and heel-to-floor time. Pain and peak leg press strength were associated with only HGS.Conclusions. Both HGS and F8WT are useful tests of walking performance. Factors uniquely associated with F8WT suggest that it may be well suited for use among older adult patients with balance problems or at risk for falls.
机译：背景。习惯性步态速度（HGS）和8字形步行测试（F8WT）是步行能力的量度，与老年人的活动性结局和残疾有关。我们的目的是在行动不便的老年人中对比这两项步行测试的表现的生理，健康和行为属性。 HGS和F8WT是主要结局。 HGS的测量是从停顿位置以通常的速度走4米直的路线所需的时间。 F8WT被测量为从静止位置以自行选择的通常步伐以8字形行走的时间。构建了可预测步行性能的单独的多元线性回归模型。自变量包括生理，认知行为健康属性和人口统计信息。在430名参与者中，有414名完成了两项步行测试。参与者是女性的67.7％，平均年龄为76.5 + 7.0岁，平均慢性病为4.1 + 2.0。平均HGS为0.94 + 0.23 m / s，平均F8WT为8.80 + 2.90秒。在单独的多元线性回归模型中（HGS：R2 = .46，p_（model）<.001; F8WT：R2 = .47，p_（model）<.001），这两个模型在统计上均具有显着性，包括：躯干伸展耐力，脚踝的运动范围，最大力量时的腿部按压速度，执行功能和感觉丧失。与F8WT唯一相关的认知和生理属性是认知加工速度和自我效能以及反应时间和脚跟到地板的时间。疼痛和峰值下肢压力强度仅与HGS相关。 HGS和F8WT都是步行性能的有用测试。与F8WT唯一相关的因素表明，它可能非常适合有平衡问题或有跌倒危险的老年患者使用。

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