@article{oai:ngu.repo.nii.ac.jp:00000392,
 author = {齋藤, 健治 and 渡辺, 正和 and 井上, 一彦 and 井上, 伸一 and 酒井, 淳一 and 竹田, 忠紘},
 issue = {1},
 journal = {名古屋学院大学論集　人文・自然科学篇, THE NAGOYA GAKUIN DAIGAKU RONSHU; Journal of Nagoya Gakuin University; HUMANITIES and NATURAL SCIENCES},
 month = {Jul},
 note = {Motion analyses of baseball pitch were executed with several inertial sensors such as accelerometers and gyro sensors. Subjects who consisted of four college baseball pitchers and two high school baseball pitchers participated in this study. They were put thirteen accelerometers on hand, upper limb and heel of stride foot, and two gyro sensors on trunk. The time of ball-release was extracted with strain gauges put on the nails of second and third fingers. The accelerations and the angular velocities generated by motions of some joints of trunk, shoulder, elbow and wrist were calculated from the data recorded with the sensors mentioned above. As the results of these measurements and analyses, some characteristics about kinematics of joint motions during baseball pitch were clarified. For example, the angular velocity of trunk rotation and upper-arm during ‘late cocking’ phase and the angular velocity of internal rotation of shoulder during ‘acceleration’ phase were significantly related to ball speed.},
 pages = {33--48},
 title = {野球投球における上肢・体幹運動の慣性センサ計測},
 volume = {48},
 year = {2011}
}