Estimation of the wrist joint center of rotation

Devos, Pierre; Hansen, Clint; Mansour, Khalil Ben; Marin, F.

doi:10.1080/10255842.2017.1382862

Cited by 2 publications

(1 citation statement)

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“…18 Subjects sat on a chair and placed their forearms on the apparatus table, with the elbow flexed at 45°and the forearm in a neutral position. The rotation centers of the wrist, which is defined as the axis connecting the radial and ulnar styloid, 23 were adjusted by the moving handle position of the device. The forearms were secured to the apparatus table with a band.…”

Section: Measurement Of Wrist Torquementioning

confidence: 99%

Sex differences in wrist torque and endurance—Biomechanical factors associated with developing lateral epicondylitis of the humerus

Ikeda

Yoshii

Kohyama

et al. 2023

Journal Orthopaedic Research

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Since eccentric contractions contribute to the development of tendinopathy, sex differences in wrist torque and endurance may be involved in the pathophysiology of lateral epicondylitis and its refractoriness. Therefore, the present study investigated sex differences in wrist torque and endurance. The wrist extension and flexion torques of the 100 wrists of 25 males and 25 females were measured. The following parameters were assessed: muscle strength at the starting-and end point for the measurement, Δ muscle strength, that is, the amount of a loss over time, and the muscle endurance ratio, that is, the decrease rate over time. Each parameter in males and females was statistically analyzed. In wrist extension, muscle strength at the starting point was 6.1 Nm for males and 3.3 Nm for females (p < 0.001); Δ Muscle strength was −0.052 Nm/s for males and −0.038 Nm/s for females (p = 0.036); The muscle endurance ratio was 99.1%/s for males and 98.8%/s for females (p = 0.015).In wrist flexion, muscle strength at the starting point and absolute value of Δ muscle strength were significantly larger in males than in females; No significant difference was observed in the muscle endurance ratio in wrist flexion between males and females. These results revealed sex differences in wrist torque and endurance. The muscle endurance ratio of the wrist extensors was lower in females than in males, which suggests that females need to exert more effort to maintain the wrist extension position under resistance. This may predispose the wrist extensor muscles in females to eccentric contractions.

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Section: Measurement Of Wrist Torquementioning

confidence: 99%