Department of Physical Therapy, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
J Strength Cond Res. 2010 Jul;24(7):1866-73. doi: 10.1519/JSC.0b013e3181def440.
The purpose of this study was to compare the utility of measuring wrist flexors and extensors strength derived from 'full' range of motion (FRoM): 60 degrees of flexion to 30 degrees of extension, and 3 equally spaced short ranges of motion: SRoM1, 60-30 degrees and SroM2, 30-0 degrees of flexion and SRoM3, 0-30 degrees of wrist extension. Fifteen apparently healthy subjects and 8 patients suffering from unilateral carpal tunnel syndrome (CTS) participated in the study. In all participants, SRoM1 findings closely resembled those obtained from FRoM. In the patient groups, the muscular strength of the uninvolved side was not different from that of the healthy subjects. On the other hand, based on a bilateral comparison (involved vs. uninvolved hand), the mean total weakness (in concentric and eccentric modes) was significantly higher in flexion (56.4 +/- 17.3%) than in extension (39.8 +/- 15.5%) but highly symmetrical between FRoM and SRoM1. Although supporting the interchangeable use of FRoM and SRoM isokinetic testing, this study highlights a hitherto unreported dynamic weakness of the wrist extension-flexion apparatus that may partly account for the general reduction in hand function reported by patients with CTS.
本研究旨在比较从“全”运动范围（FRoM）测量腕屈肌和伸肌强度的实用性：60 度屈曲至 30 度伸展，以及 3 个等距短运动范围（SRoM）：SRoM1，60-30 度和 SroM2，30-0 度屈曲和 SRoM3，0-30 度腕伸展。15 名明显健康的受试者和 8 名单侧腕管综合征（CTS）患者参加了这项研究。在所有参与者中，SRoM1 的结果与 FRoM 非常相似。在患者组中，未受累侧的肌肉力量与健康受试者无差异。另一方面，基于双侧比较（受累手与未受累手），在向心性和离心性模式下，屈曲时的总肌无力（平均+/-标准差）明显高于伸展时（56.4+/-17.3%比 39.8+/-15.5%），但 FRoM 和 SRoM1 之间高度对称。尽管支持 FRoM 和 SRoM 等速测试的可互换使用，但这项研究强调了腕伸屈装置以前未报道的动态肌无力，这可能部分解释了 CTS 患者手部功能普遍下降的原因。
