This study will use a randomized, double-blind clinical trial to evaluate the effects of eight-week HIIT and MICT exercise programs on cardiorespiratory fitness, the testosterone/cortisol ratio, and mental health in 68 healthy, moderately active young adults aged 18 to 21. Participants will be assigned to parallel groups based on their sex and training type (HIIT men, HIIT women, MICT men, MICT women). The key metrics will be measured both before and after the intervention period to assess the impact of the different training regimens.
Men and women aged 18 to 21.
Lead a sedentary or moderately active lifestyle (IPAQ ≤600 METs-min/week).
Subjects diagnosed by a physician as fit for physical exercise.
Informed consent form signed by the study subjects.
Subjects with any motor disability.
Pregnant women.
Subjects with metabolic disorders.
Subjects with chronic respiratory diseases such as asthma, emphysema, or cancer, obstructive pulmonary disease.