Molnar Human Performance Laboratory, Furman University, 3300 Poinsett Highway, Greenville, SC, 29613, USA.
Neuromuscular Research Laboratory, Department of Kinesiology and Health Science, Utah State University, 7000 Old Main Hill, Logan, UT, 84322, USA.
Aging Clin Exp Res. 2018 Apr;30(4):293-298. doi: 10.1007/s40520-017-0785-9. Epub 2017 Jun 12.
Reactive agility tests have become popular in sport for talent identification; however, the ability of these tests to evaluate physical function and falls risk in clinical populations warrants future study.
To examine the reliability and construct validity of a novel functional reactive agility test (FRAT) across the lifespan.
Forty-three young (24 ± 2 years), 32 middle-aged (50 ± 2 years), and 19 old (66 ± 4 years) men performed a FRAT that included a rapid lateral movement (1.5 m) in response to a randomly delayed visual stimulus. Test-retest reliability and minimum difference (MD) scores were determined from a subset of participants.
There was no systematic error (P > 0.087) between testing days, and the intraclass correlation coefficients, standard error of measurement (% of the mean), and MD values for decision time, movement time, and total time ranged from 0.876 to 0.949, 4.16-9.24%, and 0.128-0.138 s, respectively. The young men had faster decision times (P = 0.027) when compared to the older men and faster total times when compared to the middle-aged and older men (P < 0.001).
The FRAT demonstrated acceptable reliability and construct validity between different age groups.
Due to its limited space requirements, the FRAT may serve as a useful tool in future studies examining clinical populations.
反应敏捷测试在运动领域中已经变得很流行，用于人才选拔；然而，这些测试在临床人群中评估身体功能和跌倒风险的能力还需要进一步研究。
检验一种新的功能性反应敏捷测试（FRAT）在整个生命周期内的可靠性和结构有效性。
43 名年轻人（24±2 岁）、32 名中年人（50±2 岁）和 19 名老年人（66±4 岁）进行了 FRAT，包括快速横向移动（1.5 米）以响应随机延迟的视觉刺激。从一部分参与者中确定测试-重测可靠性和最小差异（MD）分数。
在测试日之间没有系统误差（P>0.087），决策时间、运动时间和总时间的组内相关系数、测量标准差（均值的百分比）和 MD 值范围分别为 0.876-0.949、4.16-9.24%和 0.128-0.138 秒。与老年人相比，年轻人的决策时间更快（P=0.027），与中年人和老年人相比，总时间也更快（P<0.001）。
FRAT 在不同年龄组之间表现出可接受的可靠性和结构有效性。
由于其空间要求有限，FRAT 可能成为未来研究临床人群的有用工具。
