A clinical measure of maximal and rapid stepping in older women
A clinical measure of maximal and rapid stepping in older women
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DOI：
10.1093/gerona/55.8.m429
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发表时间：
2000-08-01
影响因子：
5.1
通讯作者：
Alexander, NB
中科院分区：
文献类型：
--
作者：
Medell, JL;Alexander, NB
背景在老年人中，临床措施已被用于评估跌倒风险的基础上保持站立或完成功能任务的能力。然而.在即将摔倒的情况下，当保持姿势的策略不充分时，通常使用踏步反应。我们研究了健康的年轻人，健康的老年人和平衡受损的老年人之间的最大和快速的步进性能可能会有所不同，以及这种步进性能与其他平衡和跌倒风险的测量方法。Young（Y; n = 12;平均年龄21岁）、未受损的老年妇女（UO; n = 12;平均年龄69岁）和平衡受损的老年妇女（IO; n = 10;平均年龄77岁）进行了最大步幅（最大带长或MSL）和三个方向快速步幅（向前）的能力测试。侧和背面）。快速台阶试验（Rapid Step Test）记录完成手术的时间和手术过程中发生的步进现象。与Y组和UO组相比，IO组在单足站立等任务的表现上表现出明显较差的平衡性和较高的跌倒风险。Y组的平均MSL显著高于UO组（16%），UO组的平均MSL显著高于IO组（30%）。Y组与UO组（24%）和UO组与IO组（15%）的平均恢复时间显著更快。UO组的平均错误率往往高于Y组，但只有UO组显著高于IO组。MSL和站立时间与平衡和跌倒风险（包括单足站立）的其他指标密切相关（0.5至0.8）。串联行走，让;力量，和特定活动的平衡信心（ABC）规模。我们发现，未受损和平衡受损的老年人最大限度地走一步和快速走一步的能力大幅下降。踏步表现与其他平衡和跌倒风险的测量密切相关，在未来的研究中可能会被视为福尔斯和跌倒相关损伤的预测因素。
Background. In older adults, clinical measures have been used to assess fall risk based on the ability to maintain stance or to complete a functional task. However. in an impending fall situation, a stepping response is often used when strategies to maintain stance are inadequate. We examined how maximal and rapid stepping performance might differ among healthy young, healthy older, and balance-impaired older adults, and how this stepping performance related to other measures of balance and Fall risk,Methods. Young (Y; n = 12; mean age, 21 years), unimpaired older (UO; n = 12; mean age, 69 years), and balance-impaired older women (IO; n = 10; mean age, 77 years) were tested in their ability to take a maximal step (Maximum Strip Length or MSL) and in their ability to take rapid steps in three directions (front. side, and back). termed the Rapid Step Test (RST). Time to complete thr RST and stepping en ors occurring during the RST were noted.Results. The IO group, compared with the Y and UO groups, demonstrated significantly poorer balance and higher fall risk, based on performance on tasks such as unipedal stance. Mean MSL was significantly higher (by 16%) in the Y than in the UO group, and in the UO (by 30%) than in the IO group. Mean RST time was significantly faster in the Y group versus the UO group (by 24%) and in the UO group versus the IO group (by 15%). Mean RST errors tended to be higher in the UO than in the Y group, but were significantly higher only in the UO versus the IO group. Both MSL and RST time correlated strongly (0.5 to 0.8) with other measures of balance and fall risk including unipedal stance. tandem walk, let; strength, and the Activities-Specific Balance Confidence (ABC) scale.Conclusions. We found substantial declines in the ability of both unimpaired and balance-impaired older adults to step maximally and to step rapidly. Stepping performance is closely related to other measures of balance and fall risk and might be considered in future studies as a predictor of falls and fall-related injuries.