Fig. 5

Effects of HIIT on AVI and API. Changes of A AVI (arterial velocity pulse index) and B API (arterial pressure volume index) were examined pre- and post-experiment using PASESA AVE-2000 PLUS. n = 13 Control group, n = 17 HIIT group. Repeated measures ANOVA followed by simple effect test analysis were used. Data are presented as mean ± SE. ^*p < 0.05, ^**p < 0.01, HIIT group (post) vs. Control group (post); ^##p < 0.01, pre vs. post in HIIT group; ^△p < 0.05, pre vs. post in Control group