the authors describe the disease of a female officer loading data in the computer,suffering from pains in the right forearm and hand and diagnosis of bilateral radial and ulnar epicondylitis of the right humerus and other diagnoses with possible relation to working load. The local muscular load was evaluated by a videorecording and integrated electromyography and subsequently acknowledged the occupational disease;chronic radial epicondylitis of the right humerus.Individual factor of local muscular load of upper extremities are considered in connection with other observed diseaes.