@article{oai:kokushikan.repo.nii.ac.jp:00013518,
 author = {須藤, 明治 and SUDO, Akiharu and 山田, 健二 and YAMADA, Kenji},
 journal = {体育・スポーツ科学研究, Kokushikan society of sport science},
 month = {Mar},
 note = {J-GLOBAL ID : 200901006236324733, Abstract
　Two tasks of aquatic exercise for individuals with shoulder pain are to strengthen the intrinsic muscles of the shoulder while gradually increasing joint range of motion. Few studies have measured muscle activity while a subject is floating. Thus, the current study compared muscle activity during adduction and abduction of the shoulder while in a supine position in the water to muscle activity in a standing position on land. Subjects were 4 healthy young men (mean age: 20.0 years, mean height: 173.5 cm, mean weight: 70.5 kg)．A total of 8 muscles were tested: the right deltoid (at its center)， the pectoralis major, the left and right erector spinae, the left and right external obliques, and the left and right vastus medialis. These muscles were examined with a focus on laterality. In this study, one exercise consisted of adduction and abduction of the right shoulder in a standing position on land. In another exercise, the subject and the tester joined hands while in water and while the subject had a 1-kg float attached to each ankle, the left wrist, and the torso. The tester passively adducted the subject’s shoulder while standing still. During abduction, the tester moved away from the subject. The speed of every exercise was standardized to 40 Hz using a metronome. The water temperature was 34℃， and the water level was 90 cm. Activity of the deltoid was greater on land, and activity of the pectoralis major tended to be greater while in a supine position in the water., application/pdf},
 pages = {17--20},
 title = {水中背臥位姿勢での肩関節内転・外転時の筋活動動態},
 volume = {18},
 year = {2018},
 yomi = {スドウ, アキハル and ヤマダ, ケンジ}
}