Balogun J A, Akomolafe C T, Amusa L O
Department of Medical Rehabilitation, Obafemi Awolowo University, Ile-Ife, Nigeria.
Arch Phys Med Rehabil. 1991 Apr;72(5):280-3.
This study was designed to determine the effect of testing posture and elbow position on grip strength. A hand dynamometer was used to measure the grip strength of 61 subjects (26 female and 35 male) in four positions: (1) sitting with elbow in 90 degree flexion, (2) sitting with elbow in full extension, (3) standing with elbow in 90 degree flexion, and (4) standing with elbow in full extension. The four experimental conditions were randomized, and standardized instructions were followed. A two-factor (gender and treatment) repeated measures ANOVA was used to determine any significant difference in grip strength between the sexes and the experimental (treatment) conditions. The result of the ANOVA revealed a significant F-ratio for gender and treatment main effects. Scheffé post hoc analysis revealed that males had higher (p less than .01) grip strength than females at all the testing postures and elbow joint angles, and that there was a significant (p less than .05) difference between the grip strength measured in subjects sitting with the elbow in 90 degree flexion and standing with the elbow in full extension. The findings suggest the need for clinicians to maintain standard testing conditions while measuring grip strength.
本研究旨在确定测试姿势和肘部位置对握力的影响。使用握力计测量61名受试者（26名女性和35名男性）在四个位置的握力：（1）肘部屈曲90度坐姿，（2）肘部完全伸展坐姿，（3）肘部屈曲90度站姿，以及（4）肘部完全伸展站姿。对这四种实验条件进行随机安排，并遵循标准化的指导说明。采用双因素（性别和处理）重复测量方差分析来确定性别和实验（处理）条件之间握力的任何显著差异。方差分析结果显示性别和处理主效应的F比率显著。谢费事后分析显示，在所有测试姿势和肘关节角度下，男性的握力均高于女性（p小于0.01），并且在肘部屈曲90度坐姿和肘部完全伸展站姿的受试者中测量的握力之间存在显著差异（p小于0.05）。研究结果表明临床医生在测量握力时需要保持标准的测试条件。
