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VOmax (VOpeak) in Elite Athletes Under High-intensity Interval Training: A Meta-analysis

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Journal Heliyon
Specialty Social Sciences
Date 2023 Jun 22
PMID 37346345
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Abstract

Consensus is lacking regarding whether high-intensity interval training (HIIT) effectively improves VOmax (VOpeak) in elite athletes (Athlete must be involved in regular competition at the national level). This meta-analysis compared the effects of HIIT and conventional training methods (continuous training, repeated-sprint training, high volume low-intensity training, high-intensity continuous running, sprint-interval training, moderate-intensity continuous training)on VOmax in elite athletes. Nine studies were included, comprising 176 elite athletes (80 female). Compared to that with conventional training, VOmax was significantly increased after HIIT (overall: 0.58 [0.30, 0.87], I = 0.49, P = 0.03; males: 0.41 [0.06, 0.76], I = 0%, P = 0.89). VOmax had positive training effects when the HIIT recovery period had an interval time ≥2 min (0.44 [0.03, 0.84], I = 0%, P = 0.99) and recovery phase intensity ≤40% (0.38 [0.05, 0.71], I = 0%, P = 0.96). Thus, HIIT shows superiority over conventional training methods in improving VOmax, promoting aerobic capacity, in elite athletes.

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