The ulnar nerve can also be compressed at Guyon's canal in the wrist, but this is less common. Carpal tunnel syndrome is caused by compression of the median nerve at the level of the carpal tunnel. Early signs or symptoms may include numbness or tingling in the thumb, index or middle and one half of the ring finger. Symptoms are often increased when driving or attempting to hold objects. Frequent dropping of objects is a common complaint.
Tendons are another structures that can be affected by repetitive motions.
They attach muscle to bone, and are connective tissues that contain litfie stretch or rebound. If they are stressed beyond their strength by overuse or maintaining a static or prolonged position, they can get tiny tears in them. Friction from overuse can also cause inflammation. This causes a condition known astendinitis. Tendinitis occurs most often in the flexor and extensor tendons of the fingers, thumb, forearm, elbow or shoulder.