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Updated: Aug 20, 2025
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A Real-World High-Intensity Interval Training Protocol for Cardiorespiratory Fitness Improvement
Published on: February 22, 2022
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Effects of Aerobic Exercise Versus High-Intensity Interval Training on V̇O2max and Blood Pressure
Jean Tamayo Acosta1, Ariel E Sosa Gomez2, Steven Samuel2
1Medicine, University of Medicine and Health Sciences, Bayamón, PRI.
Cureus
|November 21, 2022
Summary
High-intensity interval training (HIIT) and aerobic exercise both effectively lower blood pressure. HIIT offers superior improvements in cardiorespiratory fitness (V̇O₂max) and requires less time, making it a highly efficient exercise option.
Area of Science:
- Cardiology
- Exercise Physiology
- Public Health
Background:
- Hypertension affects over 20% of the global population, increasing heart disease risk.
- Lifestyle modifications, including exercise, are primary treatments for hypertension.
- Comparing exercise types is crucial for optimizing cardiovascular health interventions.
Purpose of the Study:
- To compare the cardiovascular effects of high-intensity interval training (HIIT) versus lower-to-moderate-intensity aerobic exercise.
- To determine differences in blood pressure reduction and cardiorespiratory fitness improvements.
- To assess the efficiency of HIIT versus aerobic exercise for hypertensive and normotensive individuals.
Main Methods:
- Systematic review and meta-analysis of 36 selected studies from an initial pool of 4,724.
- Data extraction focused on effects on blood pressure and maximal oxygen uptake (V̇O₂max).
- Statistical analysis using a two-tailed unpaired t-test to compare exercise modalities.
Main Results:
- HIIT demonstrated non-inferiority to aerobic exercise in reducing ambulatory blood pressure.
- HIIT significantly outperformed aerobic exercise in enhancing cardiorespiratory fitness (V̇O₂max).
- HIIT achieved comparable blood pressure benefits with greater V̇O₂max improvements in less time.
Conclusions:
- HIIT is as effective as aerobic exercise for blood pressure management in hypertensive and normotensive individuals.
- HIIT provides superior gains in cardiorespiratory fitness (V̇O₂max) compared to aerobic exercise.
- HIIT presents a time-efficient and highly effective exercise strategy for cardiovascular health.
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