BACKGROUND: Maximal oxygen uptake (VO HYPOTHESIS: VO STUDY DESIGN: Interventional study. LEVEL OF EVIDENCE: Level 3. METHODS: A total of 27 male endurance runners (mean ± SD
age, 36 ± 12 years
body mass, 73.03 ± 8.97 kg
height, 178.81 ± 6.39 cm) completed VO RESULTS: No significant VO CONCLUSION: VO CLINICAL RELEVANCE: HAz/HA and IHT maintain aerobic power in endurance runners, with HAz/HA procuring reductions in HR