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Updated: Aug 2, 2025

A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
Moderate to Vigorous-intensity Continuous Training versus Highintensity Interval Training for Improving VO2max in
Robert Lindner1, Isaac Selva Raj1,2, Angela Wei Hong Yang1
1School of Health and Biomedical Sciences, RMIT University, Melbourne, Australia.
Both moderate to vigorous-intensity continuous training (MVICT) and high-intensity interval training (HIIT) effectively improve maximal oxygen uptake (V̇O2max) in women. The study found no significant difference between MVICT and HIIT for V̇O2max gains.
Area of Science:
- Exercise Physiology
- Cardiovascular Health
- Sports Science
Background:
- Maximal oxygen uptake (V̇O2max) is a key indicator of cardiorespiratory fitness.
- Both continuous training and high-intensity interval training (HIIT) are known to enhance V̇O2max.
- Existing research presents conflicting evidence on the comparative efficacy of MVICT versus HIIT for V̇O2max improvements, with limited data specifically in women.
Conclusions:
- MVICT and HIIT are equally effective strategies for enhancing V̇O2max in women.
- Training volume (number of sessions) positively influences V̇O2max gains.
- Age appears to be a factor influencing the V̇O2max response to different training protocols in women, with younger women showing greater benefits from MVICT and longer HIIT sessions compared to short HIIT.
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