Li Lin, Li Yanxia, Wu Changhong, Zhang Xinyan
Department of Physical Education, Renmin University of China, Beijing, People's Republic of China.
College of Physical Education, Langfang Teachers University, Langfang, Hebei, 065000, People's Republic of China.
BMC Musculoskelet Disord. 2020 Mar 26;21(1):189. doi: 10.1186/s12891-020-3187-7.
No previous studies have investigated the test-retest reliability of tip, key, and palmar pinch force sense in healthy adults. The present study explores the test-retest reliability of tip, key, and palmar pinch force sense for different force levels in healthy adults during an ipsilateral force reproduction task.
Fifty-six healthy subjects were instructed to produce varying levels of reference forces (10, 30, and 50% maximal voluntary isometric contraction (MVIC)) using three types of pinches (tip pinch, palmar pinch, and key pinch) and to reproduce these forces using the same hand. The subjects were tested twice by the same experienced testers, 1 week apart.
Based on the high values of the intraclass correlation coefficient (ICC), the tip pinch (0.783-0.895) and palmar pinch (0.752-0.903) force sense tests demonstrated good reliability for all the variables. The ICCs for the key pinch (0.712-0.881) indicated fair to good relative test-retest reliability.
此前尚无研究调查健康成年人指尖捏力、钥匙捏力和掌捏力感觉的重测信度。本研究探讨了在同侧力再现任务中，健康成年人不同力水平下指尖捏力、钥匙捏力和掌捏力感觉的重测信度。
56名健康受试者被要求使用三种捏力方式（指尖捏、掌捏和钥匙捏）产生不同水平的参考力（最大自主等长收缩（MVIC）的10%、30%和50%），并使用同一只手再现这些力。受试者由同一位经验丰富的测试者进行两次测试，间隔1周。
基于组内相关系数（ICC）的高值，指尖捏力（0.783 - 0.895）和掌捏力（0.752 - 0.903）感觉测试对所有变量均显示出良好的信度。钥匙捏力（0.712 - 0.881）的ICC表明重测信度为中等至良好。
1）本研究表明，使用标准化定位和所提出的方法可实现健康成年人指尖捏力、钥匙捏力和掌捏力感觉的高重测信度。2）根据信度测量结果，最大自主等长收缩（MVIC）的30%和50%是最可靠的捏力感觉水平。
