著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Maeda N,The acute effects of static and cyclic stretching on muscle stiffness and hardness of medial gastrocnemius muscle,J Sports Sci Med,,,2017,16,,514,https://cir.nii.ac.jp/crid/1372820493554393990,