Training session intensity affects plasma redox status in amateur rhythmic gymnasts
Marianna Bellafiore1, Antonino Bianco1, Giuseppe Battaglia1
1Sport and Exercise Sciences Research Unit, University of Palermo, Palermo 90144, Italy.
Journal of Sport and Health Science
|November 14, 2019
Summary
High-intensity training in rhythmic gymnasts significantly elevates oxidative stress (OxL) and may impair antioxidant capacity (TAC) recovery. Low-to-moderate intensity training shows a different oxidant/antioxidant response pattern.
Area of Science:
- Exercise Physiology
- Biochemistry
- Sports Science
Background:
- Systemic oxidant/antioxidant balance is crucial for athletic performance and recovery.
- Understanding the impact of training intensity on redox status is vital for optimizing training protocols in sports.
Purpose of the Study:
- To investigate the systemic responses of oxidant/antioxidant status in amateur rhythmic gymnasts after two training sessions of differing intensities.
- To compare the effects of low-moderate intensity (LMI) versus high-intensity (HI) training on hydroperoxide levels (OxL) and total antioxidant capacity (TAC).
Main Methods:
- Ten female gymnasts underwent maximal exercise testing to establish physiological parameters.
- Participants completed two intermittent training sessions (LMI and HI) separated by 48 hours of recovery.
- Blood samples were analyzed for OxL and TAC immediately pre- and post-training, and 48 hours post-recovery.
Main Results:
- High-intensity training resulted in significantly higher OxL post-training and at 48 hours post-recovery compared to LMI training.
- Total antioxidant capacity (TAC) did not change between training sessions.
- LMI training led to a decrease in OxL post-training, with recovery by 48 hours, and an increase in TAC at 48 hours.
- HI training caused a significant increase in OxL, indicating high oxidative stress at 48 hours post-recovery, with reduced TAC post-training.
Conclusions:
- Different training intensities elicit distinct regulatory mechanisms for oxidant/antioxidant status.
- High-intensity training protocols may induce significant oxidative stress, potentially linked to insufficient TAC and inadequate recovery time for redox balance restoration at 48 hours.
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