Reliability and Validity of the Revised Successive-Choice Step Reaction Test in Elderly Women

Kaoru Fujitani, S. Demura, Y. Asakura, S. Yamaji, H. Aoki, Sohee Shin, Narihito Taima
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Abstract

Falls occur unexpectedly in elderly individuals. Even when they pay close attention, they have difficulty avoiding falls. Therefore, these individuals must make fall-avoidance movements instantly-namely, quick one-step forward reactions (compensatory steps) when falls occur. This study examined the reliability and validity of a newly developed step reaction test for elderly women. The subjects included 22 young elderly women (65-74 years old) and 28 older elderly women (75-90 years old) with exercise habits, 22 young elderly women and 20 older elderly women without exercise habits, and 23 young women. Subjects stood in the middle of eight test sheets and then stepped rapidly onto the sheet indicated at random on the computer screen. A sum of the time from stimulus presentation to step landing on each sheet was used as an evaluation variable (movement time). The reliability of the test was high (intraclass correlation coefficient: 0.84-0.97). The results of one-way analysis of variance and multiple comparison tests showed that mean movement time increased in the order young subjects, young elderly subjects, older elderly subjects with exercise habits, and older elderly subjects without exercise habits. In addition, a significant decrease in movement time with age was found in elderly subjects without exercise habits (r = 0.65) but not in elderly subjects with exercise habits. In conclusion, the new step reaction test showed high reliability and validity.
改进的连续选择步骤反应测验在老年妇女中的信度和效度
老年人会意外跌倒。即使他们非常注意,他们也很难避免跌倒。因此,这些个体必须立即做出避免跌倒的动作——也就是说,当跌倒发生时,快速向前一步的反应(补偿性步骤)。本研究检验了一种新开发的老年妇女阶梯反应试验的信度和效度。研究对象包括有运动习惯的老年女性22名(65 ~ 74岁)、老年女性28名(75 ~ 90岁),无运动习惯的老年女性22名、老年女性20名,年轻女性23名。受试者站在8张试卷中间,然后迅速走上电脑屏幕上随机显示的试卷。从刺激呈现到在每张纸上台阶落地的时间之和作为评估变量(运动时间)。检验的信度较高(类内相关系数为0.84 ~ 0.97)。单因素方差分析和多重比较检验的结果显示,平均运动时间的增加顺序为:年轻受试者、年轻老年受试者、有运动习惯的老年受试者、没有运动习惯的老年受试者。此外,没有运动习惯的老年人运动时间随年龄的增长而显著减少(r = 0.65),而有运动习惯的老年人运动时间则无显著减少。结果表明,该方法具有较高的信度和效度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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