Unit Statistical Report. Data, including losses and payroll by classification, resulting from every workers' compensation insurance policy written in California is reported to the WCIRB in a Unit Statistical Report (USR).
Carpal tunnel syndrome can cause left arm weakness. Tendinitis can cause left arm weakness. Left arm weakness can be an early sign of a heart attack. A sprained elbow can be the cause of left arm weakness. Typing on a keyboard can be hard on the wrists, possibly aggravating carpal tunnel problems. A pinched nerve in the neck may cause left arm weakness.
The common structures that cause anterior elbow pain are the biceps muscle and tendon. The biceps muscle is so called because it has two origins (short and long head) and two muscle bodies. The short head of biceps originates from the coracoid process of the scapula and is rarely affected by tendinopathy or injury.