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Individualizing Basketball-Specific Interval Training Using Anaerobic Speed Reserve: Effects on Physiological and
1College of Physical Education, Xuchang University, Henan, HEN, China.
International Journal of Sports Physiology and Performance
|January 18, 2024
Summary
High-intensity interval training (HIIT) individualized by anaerobic speed reserve (ASR) leads to more consistent physiological adaptations in athletes compared to training based on the 30-15 Intermittent Fitness Test (VIFT) or velocity at maximum oxygen uptake (MAS). All methods showed anabolic effects.
Area of Science:
- Exercise Physiology
- Sports Science
- High-Intensity Interval Training
Background:
- Individualizing high-intensity interval training (HIIT) is crucial for optimizing adaptations in athletes.
- Different methods exist for prescribing HIIT, including anaerobic speed reserve (ASR), the 30-15 Intermittent Fitness Test (VIFT), and velocity at maximum oxygen uptake (MAS).
- Understanding which prescription method yields more consistent physiological adaptations across diverse athlete profiles is essential.
Purpose of the Study:
- To compare the adaptive responses to supramaximal HIIT individualized by ASR, VIFT, and MAS.
- To determine which HIIT prescription approach facilitates more uniform physiological adaptations among athletes with varying profiles.
Main Methods:
- Thirty national-level basketball players were randomly assigned to three HIIT groups.
- Training involved progressive increases in volume over six weeks, with work intervals based on ASR, VIFT, or MAS.
- Physiological and hormonal markers, including maximal oxygen uptake (V̇O2max), ventilatory thresholds, cardiac output, and testosterone levels, were measured.
Main Results:
- All HIIT protocols significantly improved V̇O2max, oxygen pulse, ventilatory thresholds, cardiac output, stroke volume, power output, and testosterone levels.
- HIIT prescribed using ASR demonstrated significantly lower interindividual variability in adaptations for V̇O2max, V̇O2/HR, VT1, VT2, Q˙max, and stroke volume compared to VIFT and MAS.
- While ASR showed more uniform changes in power output, hormonal responses (testosterone and testosterone-to-cortisol ratio) exhibited high variability across all groups.
Conclusions:
- Supramaximal HIIT based on anaerobic speed reserve (ASR) promotes more consistent physiological adaptations than VIFT or MAS-based protocols.
- Despite high variability in hormonal responses, all HIIT methods induced positive anabolic effects.
- ASR may be a superior method for individualizing HIIT to achieve more predictable physiological outcomes.
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