Department of Radiology, the First Medical Center of Chinese PLA General Hospital, Beijing, China.
Department of Radiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China.
J Clin Densitom. 2021 Oct-Dec;24(4):638-644. doi: 10.1016/j.jocd.2021.01.005. Epub 2021 Jan 19.
INTRODUCTION/BACKGROUND: The purpose of this study was to compare the grip strength values obtained under 4 postures, and to identify the position providing the maximum grip strength value. We also explored the effects of different body positions on grip strength measurements and the significance of the selection of measurement position for guiding the screening and diagnosis of sarcopenia.
A total of 764 people (409 males and 355 females) participated in this study. Grip strength was measured in 4 positions: (1) standing with the elbow fully extended; (2) standing with arms raised; (3) sitting with the elbow flexed 90°; and (4) sitting with the elbow extended. Multiple linear regression model was used to compare the grip strength measurements obtained from these 4 positions by each hand when considering the influence of age, gender, body mass index, and other factors.
Both male and female grip strength values in the standing position with the elbow fully extended were significantly greater than those in other positions. In addition, the grip strength measured by standing posture was generally greater than measured by sitting posture. In contrast, grip strength values in the 2 sitting positions did not differ significantly. The grip strength of men was generally greater than that of women.
The findings reveal that grip strength measured while standing with the elbow fully extended is greater than that measured while sitting, which is the posture currently recommended in clinical practice. Clinicians and researchers should choose the appropriate and optimal postures to measure grip strength.
简介/背景：本研究旨在比较 4 种姿势下的握力值，并确定提供最大握力值的姿势。我们还探讨了不同体位对握力测量的影响，以及选择测量体位指导肌少症筛查和诊断的意义。
共纳入 764 人（409 名男性，355 名女性）。使用 4 种姿势测量握力：（1）完全伸展肘部的站立位；（2）抬高手臂的站立位；（3）屈肘 90°的坐位；（4）伸肘的坐位。当考虑年龄、性别、体重指数等因素的影响时，采用多元线性回归模型比较双手在这 4 种姿势下的握力测量值。
男性和女性完全伸展肘部的站立位握力值均显著大于其他体位。此外，站立位的握力通常大于坐位。相比之下，2 种坐位的握力值差异无统计学意义。男性的握力值通常大于女性。
研究结果表明，完全伸展肘部的站立位握力大于坐位，这是目前临床实践中推荐的姿势。临床医生和研究人员应选择适当和最佳的姿势来测量握力。
