抄録
When we do physical therapy, motion analysis is an important tool. We think that considering "the meaning of the joint movement under motion" in the motion analysis is necessary. We performed physical therapy for underhand pitchers. In this paper, we introduce the physiotherapy evaluation that we did for the underhand pitchers. It was especially important to consider "the meaning of the joint movement under motion" in the evaluations. Moreover, when thinking about "the meaning of the joint movement under motion", it was necessary to understand the purpose of the underhand pitch. We also report the purpose and the history of the underhand pitch, because it was necessary to investigate them to understand underhand pitchers' needs.
