Watanabe Yudai, Shirato Rikiya, Wada Takuro, Iba Kousuke, Sonoda Tomoko, Yamashita Toshihiko
Department of Occupational Therapy, Sapporo Medical University Hospital, Japan.
Department of Occupational Therapy, Faculty of Human Science, Hokkaido Bunkyo University: 5-196-1 Kogane-chuo, Eniwa 061-1449, Japan.
J Phys Ther Sci. 2020 Nov;32(11):748-753. doi: 10.1589/jpts.32.748. Epub 2020 Nov 11.
[Purpose] Isolated finger flexion associated with function of the flexor digitorum superficialis has been qualitatively assessed using standard and modified tests. The purpose of this study was to quantify isolated finger flexion in healthy participants. [Participants and Methods] We assessed 100 volunteers (mean age: 44.6 years) without upper limb dysfunction using the standard and modified flexor digitorum superficialis tests. The sum of the isolated active flexion angles of the metacarpophalangeal and proximal interphalangeal joints of the test finger was also calculated, with the other three fingers held in an extended position with our original jig. [Results] The mean isolated flexion angles were, respectively, 152.4° and 154.8° for the right and left index fingers, 161.1° and 160.4° for the middle fingers, 160.6° and 158.2° for the ring fingers, 129.4° and 134.6° for the independent flexor digitorum superficialis function, 85.8° and 74.7° for the common flexor digitorum superficialis function, and 75.8° and 71.2° for absent flexor digitorum superficialis function in the small finger. The functional variations of the flexor digitorum superficialis of the small fingers showed symmetry in 65.0% of the fingers but asymmetry in 35.0%. [Conclusion] The data obtained in this study provide normal reference values for the examination of independent movement disorders of the fingers.
[目的] 已使用标准测试和改良测试对与指浅屈肌功能相关的孤立手指屈曲进行了定性评估。本研究的目的是对健康参与者的孤立手指屈曲进行量化。[参与者与方法] 我们使用标准和改良的指浅屈肌测试评估了100名无上肢功能障碍的志愿者（平均年龄：44.6岁）。还计算了测试手指掌指关节和近端指间关节的孤立主动屈曲角度之和，同时用我们自制的夹具将其他三根手指保持在伸展位置。[结果] 右手和左手示指的平均孤立屈曲角度分别为152.4°和154.8°，中指为161.1°和160.4°，环指为160.6°和158.2°，指浅屈肌独立功能为129.4°和134.6°，小指指浅屈肌共同功能为85.8°和74.7°，小指指浅屈肌缺如功能为75.8°和71.2°。小指指浅屈肌的功能变化在65.0%的手指中表现为对称，但在35.0%的手指中表现为不对称。[结论] 本研究获得的数据为手指独立运动障碍检查提供了正常参考值。
