The purpose of this study was to clarify the contribution of body segments in soccer throw-in. Subjects were twenty seven male university students majored in physical education. And also, these subjects were divided according to T score of ball velocity into two groups; (1) high speed group (average ball velocity: 15.6±0.9m/sec for 13males), (2) low speed group (average ball velocity: 13.9±0.6m/sec for 14males). Maximal arm swing velocities on limited body in soccer throw-in movement were obtained a custom-made movement velocity measurement system connected to the Speed Meter. Soccer throw-in movement on the sitting position was performed from a custom-made chair, the subjects were tied up with a belt in order to avoid the participation of lower limb during the upper body throw-in. And same as, lower limb and trunk were tied up in upper limb throw-in.
Contribution of upper limb was higher than that of trunk and lower limb in soccer throw-in. Difference of contribution of body segments in soccer throw-in was not observed between high speed group and low speed group.
From these results, it was suggested that contribution of upper limb was showed higher values in soccer throw-in. In addition, it was considered that ball velocity was influenced for physical factor in soccer throw-in.
