Objective: This study investigates the efficacy of 4-week intermittent sprint (INT) and circuit training (CT) on aerobic and anaerobic performance in varsity soccer players. Methodology: Participants were randomly equally assigned to one of two training groups (INT or CT). Both groups were required to complete the standard soccer training regimen, supplemented by their respective training programs for the 4-week duration. Maximal oxygen consumption (VO2max), anaerobic capacity (AC), and anaerobic power were assessed as primary indicators of aerobic and anaerobic performance, respectively. Additionally, blood lactate concentrations were measured at 0 and 3 minutes following a repeated sprint test. Results: Repeated measures ANOVA revealed significant improvements in VO2max (p = 0.004) and AC (p = 0.009) after the 4-week training period, with no significant differences between the two interventions. Notably, a significant increase in minimum anaerobic power (Pmin) was observed (p = 0.043), despite higher lactate accumulation compared to pre-training levels, suggesting an enhanced ability to maintain speed under conditions of muscular fatigue. Conclusion: These findings indicate that both training methods are effective training programs in enhancing aerobic and anaerobic performance in varsity soccer players. However, the underlying mechanisms driving the physiological responses and adaptations to these training modalities require further investigation.
Treeraj et al. (Thu,) studied this question.