This is a study on nine patients with unilateral complete distal biceps tendon rupture. The patients underwent assessment of peak torque for both flexion and supination. They were also tested for their fatigue index between the involved and uninvolved limbs.
The results demonstrate that the peak torque was significantly lower in the involved limbs for both elbow flexion and for forearm supination. They did not find any differences in the fatigue index between the involved and uninvolved limbs for either flexion or supination.
These results indicate that complete rupture of the distal biceps tendon results in substantial reduction in elbow flexion and forearm supination strength but that the endurance does not seem to decrease or increase over time.