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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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Comparison of Training Intensity Patterns for Cardiorespiratory, Speed, and Strength Exercise Programs.
Rheba E Vetter1, Han Yu2, Alice K Foose1
1School of Health Science and Wellness, Northwest Missouri State University, Maryville, Missouri.
Journal of Strength and Conditioning Research
|April 27, 2017
Summary
Training intensity significantly impacts exercise effectiveness across cardiorespiratory, speed, and strength programs. Optimal results are seen around 74% intensity, with diminishing returns beyond 87% for strength training.
Area of Science:
- Exercise Physiology
- Sports Science
- Human Performance
Background:
- Effective exercise program design is crucial for enhancing fitness and performance.
- Understanding the impact of training intensity is key to optimizing outcomes and preventing adverse effects.
Purpose of the Study:
- To analyze the influence of training intensity on the effectiveness of various exercise programs.
- To identify optimal intensity levels for cardiorespiratory, speed, and muscular strength training.
Main Methods:
- Meta-analysis and meta-regression of 31 studies involving 292 cases.
- Inclusion criteria focused on studies with pre/post-test data, healthy adult participants, and a minimum 4-week intervention.
- Assessed training intensity, frequency, duration, age, and ability level as moderators of training effectiveness (effect size).
Main Results:
- Training intensity was a significant moderator of effect size across cardiorespiratory, muscular strength, and speed training.
- An aggregated model showed a curvilinear relationship between intensity and effectiveness, with an estimated critical average value of 74%.
- Muscular strength training exhibited diminishing returns at intensities exceeding an estimated 87.29%.
Conclusions:
- Training intensity is a critical factor influencing the effectiveness of diverse exercise modalities.
- An intensity around 74% appears optimal for general training effectiveness.
- Exceeding 87.29% intensity in strength training may lead to reduced benefits.
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