Abstract

Some kinesiologic parameters during motor learning of a dart throwing task were investigated. Four inexperienced male subjects (age 20-30 years) threw darts during three successive days, according to the same protocol. The EMGs of seven muscles were recorded to determine changes in muscle-coordination. The Selsport movement registrations were utilized for the determination of the duration of the movement (T), shoulder angle e (xs) elbow angle (xe), velocity (Vr) and angle with the horizontal plane of the dart at the moment of release (beta-r). Results show that both the duration and the amplitude of the EMG in the shoulder- and arm-muscles generally decrease. In conclusion, a spontaneous reorganization of muscle-activity occurs during successive sessions and the movement becomes more constant. Verf.-Referat