Participants completed a V˙ O2peak test, a time to exhaustion (TTE) trial (power = 80% V˙ O2peak)and had hematological [hemoglobin (Hb),haematocrit (Hct)] and inflammatory markers [interleukin-6 (IL-6), tumor necrosis factor-α (TNFα)] measured in a resting state, pre and post SIT. VO 2peak (mL.kg−1 .min−1) improved in HYP (+11.9%) and NORM (+9.8%), but not CONT (+0.9%)