Richards R R, Gordon R, Beaton D
Upper Extremity Reconstructive Service, St. Michael's Hospital, Toronto, Ontario, Canada.
J Hand Surg Am. 1993 Mar;18(2):253-61. doi: 10.1016/0363-5023(93)90356-8.
An objective method of measuring isometric wrist, finger (metacarpophalangeal joints) and thumb extension strength was developed, and values for a normal population were defined. Disability due to extensor dysfunction was not assessed in this study. The testing technique involved the use of a load cell myometer held in a specially constructed jig. A total of 2232 measurements in 372 persons were made. Mean values for the strength of extension were as follows: men--wrist, 13 kg; metacarpophalangeal joint, 6 kg; thumb, 3 kg; women--wrist, 7 kg; metacarpophalangeal joint, 4 kg; thumb, 2 kg. Strength was greatest in the third decade and decreased in each subsequent age group. Wrist extension strength was 10% greater in the dominant hand. Interrater and test-retest reliability were assessed and found to be satisfactory. The method is proposed primarily as a clinical research tool, providing the clinician with an objective means of assessing wrist, metacarpophalangeal joint, and thumb extensor function. Potential applications include measurements of recovery after radial nerve injury or grafting and after other reconstructive procedures to restore extensor function.
开发了一种测量等长腕部、手指（掌指关节）和拇指伸展力量的客观方法，并确定了正常人群的测量值。本研究未评估伸肌功能障碍导致的残疾情况。测试技术涉及使用置于特制夹具中的测力传感器式肌动计。对372人进行了总共2232次测量。伸展力量的平均值如下：男性——腕部，13千克；掌指关节，6千克；拇指，3千克；女性——腕部，7千克；掌指关节，4千克；拇指，2千克。力量在第三个十年最大，在随后的每个年龄组中均下降。优势手的腕部伸展力量大10%。评估了评分者间信度和重测信度，结果令人满意。该方法主要作为一种临床研究工具提出，为临床医生提供评估腕部、掌指关节和拇指伸肌功能的客观手段。潜在应用包括测量桡神经损伤或移植后以及其他恢复伸肌功能的重建手术后的恢复情况。
