Comparative Effect of High-Intensity Interval Training and Continuous Aerobic Training on Cardiovascular Fitness and Fatigue Resistance in Competitive Football Players
Sarika Kukolore, Neeraj Singh · International Journal of Science and Research (IJSR) · 2026
Background: Structured cardiovascular endurance training has been shown to significantly improve aerobic capacity and recovery parameters in competitive football players. However, limited evidence exists comparing the relative effectiveness of high-intensity interval training (HIIT) and continuous aerobic training (CAT) on cardiovascular fitness and fatigue resistance in football-specific contexts.
Objective: To compare the effects of HIIT and CAT on VO2max, heart rate recovery, and fatigue resistance in competitive football players.
Methods: Thirty competitive male football players (18-25 years) were randomly allocated into two groups: HIIT group (n = 15) and CAT group (n = 15). Both groups trained for 6 weeks, 4 sessions per week. VO2max, heart rate recovery, and repeated sprint ability were assessed pre- and post-intervention.
Results: Both groups demonstrated significant improvements in VO2max and heart rate recovery (p < 0.05). However, the HIIT group showed significantly greater improvements in VO2max and fatigue resistance compared to the CAT group (p < 0.01).
Conclusion: While both training modalities enhance cardiovascular fitness, HIIT produces superior improvements in aerobic capacity and fatigue resistance in competitive football players.