Wrist curls strengthen both flexor and extensor muscles with light weights or resistance bands. Sit with a weight in each hand, rest forearms on thighs and wrists hanging over knees. Slowly curl ...

Ulnar wrist pain is caused by specific technique problems ... Therefore it moves less freely than the other extensor tendons. This results in stress on the ECU tendon during pronation and supination.

wkes.eu The extensor carpi ulnaris (ECU) muscle plays a key role not only in the active movements of wrist extension and ulnar deviation but also in providing stability to the ulnar side of the wrist.