Conclusion
Low-volume HIIT promoted greater improvements in cardiorespiratory capacity in comparison with low-volume MICT, independent of the protocols used. There were no other difference between groups. All protocols improved at least one of the variables analyzed; however, the most evident benefits were after the high-intensity protocols, especially L-HIIT. Therefore, it will be up to the professional to analyze their patients individually to propose the best intervention for each case, within an appropriate cost-benefit perspective.