Improved foot position sense as a result of repetitions in older adults.
Improved foot position sense as a result of repetitions in older adults.
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由于老年人的重复，脚部位置感得到改善。
DOI：
10.1093/geronj/48.3.p137
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Stelmach,GE
中科院分区：
文献类型：
--
作者：
Meeuwsen,HJ;Sawicki,TM;Stelmach,GE
这项研究调查了老年人和年轻人的脚位置感知敏锐度是否会因为重复而发生变化。受试者用一只脚主动保持四个参考位置，并与另一只脚匹配这些位置12次。数据表明，与老年人相比，年轻人完成配对任务的总体准确性更高，变异性更小。年轻人和老年人都需要越来越少的时间来感知重复的精确匹配。重复的配对试验改善了老年人的表现一致性，并导致两个年龄组的偏见较少。这些结果表明，成年人的衰老影响了传递脚踝关节位置的感觉信号的质量，但重复会使老年人更清楚地意识到本体感觉反馈，从而产生更快、更一致、更准确的表现。
This research investigated whether acuity of perceived foot position changes as a result of repetitions in older and young adults. Subjects actively held four reference positions with one foot and matched these positions 12 times with the other foot. The data suggest that young adults performed the matching tasks with more overall accuracy and less variability than the older adults. Both young and older adults needed progressively less time to perceive an accurate match with repetitions. Repeated matching trials improved performance consistency in the older adults and resulted in less bias in both age groups. These results imply that adult aging affects the quality of the sensory signals conveying foot position at the ankle joint, but that repetitions make older adults more aware of proprioceptive feedback resulting in faster, more consistent, and more accurate performance.