Fig. 1From: Energy cost and lower leg muscle activities during erect bipedal locomotion under hyperoxiaCoT-v relationships and comparisons of economical speed (ES) and energetically optimal transition speed (EOTS) on each gradient. a CoT-v relationships on the level and b uphill gradient. c ES on the level and d uphill gradient. e EOTS on the level and f uphill gradient. “N” and “H” represent normoxia and hyperoxia, respectively. +p < 0.05, *p < 0.01, and #p < 0.001 between normoxia and hyperoxiaBack to article page