@article{oai:waseda.repo.nii.ac.jp:00022004,
 author = {Hara, Reira and Gando, Yuko and Muraoka, Isao},
 journal = {スポーツ科学研究},
 month = {},
 pages = {72--72},
 title = {Differences in muscle activity between front crawl and head up crawl},
 volume = {11},
 year = {2014}
}