Figure 1. Cell infiltration in human skeletal muscle after SSE and HIIE. A representative graph of cell infiltration increased immediately following HIIE (A). This response is delayed after SSE with similar amount of cycling work (B). Individual response after SSE (C) and HIIE (D) are shown in the lower panel. *Significant difference against pre-exercise baseline, p < 0.05. Abbreviations: SSE: steady state cycling exercise (60% maximal aerobic power); HIIE: high intensity interval cycling exercise (120% maximal aerobic power).