Effect of fatigue on grip force, wrist muscle activity and wrist kinematics during an object placement task

This preliminary study investigated the effects of fatigue on hand and wrist biomechanics in a simulated workplace setting to gain insight into repetitive use injuries of the upper extremity. Grip forces, wrist muscle activity and wrist kinematics were measured pre- and post-fatigue during an object placement task. Increased grip force, increased muscle activity and increased wrist extension were observed post-fatigue.