High Intensity Interval Training and Inspiratory Muscle Training

The HIIT protocol involved four intervals, each lasting 4 minutes, beginning at 70% of maximum power and building to a target intensity of at least 85% HRmax. The IMT sessions included 2-3 sets of 30 breaths (totaling 60-90 breaths per session), with a two-minute rest between sets, three days per week starting with 30% of PImax and reaching 60% of PImax.

30-min walking