Koji Murofushi, Tsuyoshi Morito, Hiroshi Akuzawa, Tomoki Oshikawa, Yu Okubo, Sho Mitomo, Koji Kaneoka. External focus instruction using a soft paper balloon on muscle activation patterns in isometric hip abduction exercises: A comparative analysis with external resistance tools. J Bodyw Mov Ther. 2024. 40. 79-87
Koji Murofushi, Tsuyoshi Morito, Hiroshi Akuzawa, Tomoki Oshikawa, Yu Okubo, Koji Kaneoka, Sho Mitomo, and Kazuyoshi Yagishita. External focus instruction using a paper balloon: impact on trunk and lower extremity muscle activity in isometric single-leg stance for healthy males. Front Sports Act Living. 2024. 6. 1343888