@article{oai:kyukyo.repo.nii.ac.jp:00000177, author = {長谷川, 伸 and 船津, 京太郎 and Hasegawa, Shin and Funatsu, Kyotaro}, issue = {4}, journal = {九州共立大学スポーツ学部研究紀要, Bulletin of Kyushu Kyoritsu University. Faculty of sports science}, month = {Mar}, note = {The purpose of this study was to investigate aga-related changes in muscle cross-sectional area(CSA) of supraspinatus, shoulder abduction strength, and specific tension. Forty male subjects participated in this study, and were divided into 4 age groups (10 12G, 13 15G, 16 18G, and 19 21G). Cross sectional images of supraspinatus muscle were obtained with B-mode ultrasound apparatus. Shoulder abduction strength in the plane of the scapula was measured bilaterally with a hand-held dynamometer. Specific tension of supraspinatus was calculated by dividing shoulder abduction strength in CSA. In the comparison of each group, CSA of supraspinatus and shoulder abduction strength in 19 21G were significantly greater than those in 1O- l 2G and l 3- l 5G (p< 0.05-0.01 ). Specific tension of supraspinatus in 19-21G was significantly greater than those in 10-12G (p<0.01). This study suggested that shoulder abduction strength increased by specific tension of supraspinatus in the early phase, and by muscle hypertrophy in the next phase.}, pages = {1--6}, title = {棘上筋の筋断面積,肩関節外転筋力に関する横断的研究}, year = {2010}, yomi = {ハセガワ, シン and フナツ, キョウタロウ} }