Effects world class swimmers using different muscles in the straightness backstroke kick movement - Ide, T.; Johnson, W. F.; Takise, S.; Hicks, L. R.; Inada, N.; Fujimori, H.; Fujimori, T.; Noel, A. L.; Mikish, A. (XIVth International Symposium on Biomechanics and Medicine in Swimming Proceedings, 2023)