Schematic presentation of the experimental design. A, 8:00 am: Assessment of body composition and resting energy expenditure; blood collection for hematologic measures, tumor necrosis factor α, interleukin-6, creatine kinase, cortisol, and testosterone. B, 10:00 am: Assessment of aerobic capacity with exercise at incrementally increases. C: Tennis drills, 2 × 6 min at work-to-rest ratio of 1:1; blood collection for lactic acid measurement. Abbreviations: CON, control group; CRS, cryostimulation group.