Riemann Bryan L, Piersol Kelsey
Biodynamics and Human Performance Center, Department of Health Sciences, Armstrong State University, 11935 Abercorn Street, Savannah, GA, 31419, USA.
Aging Clin Exp Res. 2017 Oct;29(5):1045-1048. doi: 10.1007/s40520-016-0687-2. Epub 2016 Nov 28.
Despite the common practice of using force platforms to assess balance of older adults, few investigations have examined the reliability of postural screening tests in this population.
We sought to determine the test-retest reliability of self-selected and narrow stance balance testing with eyes open and eyes closed in healthy older adults.
Thirty older adults (>65 years) completed 45 s trials of eyes open and eyes closed stability tests using self-selected and narrow stances on two separate days (1.9 ± .7 days). Average medial-lateral center of pressure velocity was computed.
The ICC results ranged from .74 to .86, and no significant systematic changes (P < .05) occurred between the testing sessions for any of the tests. The standard error of measurement ranged from 15.9 to 23.6%.
Reliability estimates were similar between the two stances and visual conditions assessed. Slightly higher coefficients were identified for the self-selected stances compared to the narrow stances under both visual conditions; however, there were negligible differences between the sessions. The within subject session-to-session variability provides a basis for further research to consider differences between fallers and non-fallers.
Reliability for eyes open and closed balance testing using self-selected and narrow stances in older adults was established which should provide a foundation for the development of fall risk screening tests.
尽管使用测力平台评估老年人平衡能力是常见做法，但很少有研究考察该人群姿势筛查测试的可靠性。
我们试图确定健康老年人在睁眼和闭眼状态下自选站姿和窄站姿平衡测试的重测可靠性。
30名老年人（>65岁）在两天内（间隔1.9±0.7天）分别完成了45秒的睁眼和闭眼稳定性测试，测试采用自选站姿和窄站姿。计算平均内外侧压力中心速度。
组内相关系数（ICC）结果在0.74至0.86之间，任何测试的两次测试之间均未出现显著的系统性变化（P<0.05）。测量标准误差在15.9%至23.6%之间。
在所评估的两种站姿和视觉条件下，可靠性估计相似。在两种视觉条件下，自选站姿的系数略高于窄站姿；然而，两次测试之间的差异可忽略不计。受试者内测试间的变异性为进一步研究跌倒者和非跌倒者之间的差异提供了基础。
确定了老年人在睁眼和闭眼状态下使用自选站姿和窄站姿进行平衡测试的可靠性，这应为跌倒风险筛查测试的开发提供基础。
