Active Recovery between Interval Bouts Reduces Blood Lactate While Improving Subsequent Exercise Performance in
Harutiun M Nalbandian1, Zsolt Radak2, Masaki Takeda3
1Graduate School of Medicine, Kyoto University, Kyoto 660-8501, Japan. nalbandian.minas.53s@st.kyoto-u.ac.jp.
Sports (Basel, Switzerland)
|June 19, 2018
Summary
Active recovery during high-intensity interval training improves subsequent Wingate test performance. While active recovery leads to higher blood pH and lower blood lactate, these changes do not directly explain the performance enhancement.
Area of Science:
- Exercise Physiology
- Sports Science
- Biochemistry
Background:
- High-intensity interval training (HIIT) elicits significant physiological stress.
- Understanding recovery strategies is crucial for optimizing athletic performance.
- Blood lactate and pH kinetics are key indicators of metabolic stress during exercise.
Purpose of the Study:
- To investigate the effects of active recovery versus passive recovery on blood lactate and blood pH during and after HIIT.
- To determine the impact of different recovery strategies on subsequent Wingate test (WT) performance.
- To explore the relationship between blood pH variations and performance enhancement during active recovery.
Main Methods:
- Seventeen well-trained athletes completed two HIIT sessions with either active or passive recovery.
- HIIT involved three 30-second bouts at 90% peak power with 4-minute recovery periods.
- Blood samples analyzed for gases, lactate, and pH; WT assessed peak and average power.
Main Results:
- Active recovery resulted in significantly higher blood pH (p < 0.01) and lower blood lactate (p < 0.01) compared to passive recovery.
- Wingate test performance was significantly enhanced following active recovery (peak power: 715 ± 108 W vs. 671 ± 88 W; average power: 548 ± 73 W vs. 510 ± 70 W; p < 0.01).
- No significant correlation was found between increased blood pH and enhanced performance in active recovery trials.
Conclusions:
- Active recovery during high-intensity interval exercise enhances subsequent anaerobic performance, such as in a Wingate test.
- The physiological benefits of active recovery, including improved blood pH and reduced lactate accumulation, contribute to better performance.
- The precise mechanisms linking improved blood pH kinetics to enhanced performance require further investigation.
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