Relationship between traction force of the flexor tendon and flexion force of the finger output based on the Jamar dynamometer

[ABSTRACT] It is important to know the relationship between flexor tendon traction force and applied finger flexion force generated during the rehabilitation of trigger finger. However, there has been no report on this relationship using the Jamar dynamometer in clinical practice and cadaveric study. Therefore, the purposes of this cadaveric study were to measure the value of flexion force when pulling a tendon via the method used in clinical practice and to investigate the relationship between the traction force of the flexor tendon and the flexion force of the finger output based on the Jamar dynamometer. In this study, each finger of a fresh-frozen cadaver was pulled, and the finger flexion force was measured with the Jamar Plus+ Digital Hand Dynamometer (Performance Health, Chicago, IL, USA). There was a strong first-order correlation between the flexor tendon traction force and the finger flexion force, and the value of the finger flexion force [N] divided by the flexor tendon traction force [N] was 0.195-0.321. Under the same flexor tendon traction force, the exerted finger flexion force was in the following order: middle finger, index finger, ring finger, and little finger (maximum to minimum). It is important to consider these findings when performing rehabilitation of trigger finger.

https://opac.ll.chiba-u.jp/da/curator/900119526/

https://opac.ll.chiba-u.jp/da/curator/900119526/S03035476-97E-3-P25.pdf

The Chiba Medical Society

千葉医学会

学術雑誌論文

AN00142148

Chiba medical journal

97E

3

25

30

2021-06-10

10.20776/S03035476-97E-3-P25

publisher

Chiba Medical Journal (ONLINE ISSN 2433-4235)