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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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Development of a non-damaging high-intensity intermittent running protocol.
1Department of Football Science, College of Health Science, Ho Nam University, Gwangju, Korea.
Journal of Exercise Rehabilitation
|May 12, 2015
Summary
This study developed a high-intensity intermittent running protocol that causes acute fatigue without muscle damage. The protocol effectively measures physiological responses to intense exercise, aiding research into exercise adaptation.
Area of Science:
- Exercise Physiology
- Sports Science
- Human Performance
Background:
- High-intensity intermittent exercise is crucial for athletic training.
- Previous protocols often cause muscle damage, limiting their use.
- A non-damaging protocol is needed to study fatigue and adaptation.
Purpose of the Study:
- To create a non-damaging high-intensity intermittent running protocol.
- To assess physiological and subjective responses to this protocol.
- To validate its suitability for studying exercise-induced fatigue and adaptation.
Main Methods:
- Ten healthy men performed 8 bouts of 3-minute high-intensity interval running (90% maximal oxygen uptake) with 3-minute recovery.
- Measurements included heart rate, rating of perceived exertion, blood lactate, maximal voluntary contraction, creatine kinase (CK), and myoglobin (Mb).
Main Results:
- Significant increases in heart rate, perceived exertion, and blood lactate were observed.
- No significant reduction in maximal voluntary contraction or increase in CK was found.
- Myoglobin levels increased but returned to baseline within 24 hours.
Conclusions:
- The developed protocol induces acute fatigue without exercise-induced muscle damage.
- This validated protocol is suitable for investigating physiological responses and molecular adaptations to high-intensity exercise.
