Grip Strength: Relationship to Shoulder Position in Normal Subjects

本篇研究主要在評估肩膀不同姿勢下，對握力的影響。160名受測者(男、女各80名)，區別性和年齡，利用Jamar dynamometer 做握力測試。每位受測者站著肩膀保持自然下垂，內收貼身，前臂和腕關節不偏的姿勢，對慣用手依下例四種姿勢做測試：(1)肩關節屈曲0°，肘關節屈曲90°，(2)肩關節屈曲0°，肘關節完全申直，(3)肩關節屈曲90°，肘部完全伸直，(4)肩關節屈曲180°，肘關節完全伸直。結果顯示：在肩關節180°屈曲，肘部完全伸直的姿勢，握力平均值最高；而肩關節在屈曲0 °，肘關節屈曲90°下最低。此外，肘關節在完全伸直(肩關節0°、90°、或180°屈曲)的握力值都比叉關節在90°屈曲，肩關節0°屈曲顯著的高。在各年齡層和性別間的握力值也有明顯的差異。此發現對於手部傷害的病人，在評估和復健訓練方面提供極大的參考價值。

關鍵字

無資料

並列摘要

The objective of this study was to evaluate the effect of shoulder position on grip strength. A Jamar dynamometer was used to measure the grip strength of 160 subjects (80 males and 80 females), stratified on both sex and age, in the four testing positions. For each of the tests of grip strength, the subject stood with the shoulder adducted and neutrally rotated while the forearm and wrist were held in the neutral position. The four hand strength tests consisted of three positions in which the elbow was maintained in full extension combined with varying degrees of shoulder flexion (i.e., 0°,90°, and 180°)and of one position in which the elbow was flesed at 90° with the shoulder in 0°of flexion. Only the dominant hand was tested. The results showed that the highest mean grip strength measurement was recorded when the shoulder was position at 180°of flexion with elbow in full extension; whereas the position of 90°elbow flexion with shoulder in 0° of flexion had the lowest grip strength score. In addition, the grip strength measured with the elbow in extension, regardless of shoulder position (i.e., 0°,90°,and 180°of flexion), was significantly higher than when the elbow was flexed at 90°with the shoulder positioned at 0°of flexion. Finally, grip strength differed significantly for both sexes and for each agg group. The findings are valuable in the evaluation and rehabilitation training of hand injured patients.

並列關鍵字

dynamometer ； grip strength ； hand rehabiliation

國際替代計量

Grip Strength: Relationship to Shoulder Position in Normal Subjects

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