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Mean of rating of perceived exertion (RPE, panel A), Heart Rate (HR, panel B), and Distance covered (km, panel C) during the 12 weeks of training programs in combined training (COMB, grey continuous line) and high intensity interval training (HIIT, black dashed line) groups. All values are presented as mean ± standard deviation. ∗Significantly different from COMB, P < 0.05.
