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Acute Effects of Beetroot Supplementation on Resistance Exercise Performance in Physically Active Men.
Maitê Yorioka Rodrigues1, Monica Yuri Takito2, Gabriel Albanese Kafouri1
1School of Physical Education and Sport, University of São Paulo, São Paulo 05508-030, Brazil.
Nitrate supplementation did not improve strength endurance performance in trained males during repeated bench press and leg press sets. This study found no significant differences in repetitions to failure between nitrate and placebo conditions.
Area of Science:
- Sports Science
- Exercise Physiology
- Nutritional Supplementation
Background:
- Nitrate (NO3-) supplementation is explored for its potential ergogenic effects.
- Understanding its impact on strength endurance in resistance training is crucial.
Purpose of the Study:
- To investigate the effect of nitrate supplementation on exercise performance in repeated sets of bench press and leg press.
- To determine if nitrate supplementation enhances repetitions to failure (RTF) at 80% of one-repetition maximum (1RM).
Main Methods:
- 18 trained males participated in repeated number of maximum repetition (NMR) tests.
- Subjects completed tests 2 hours after ingesting nitrate or a placebo.
- Performance metrics included RTF, power output, heart rate (HR), and rating of perceived exertion (RPE).
Main Results:
- No significant differences were observed in total repetitions to failure (RTF) between nitrate and placebo conditions.
- Nitrate supplementation did not significantly affect mean power, peak power, HR, or RPE.
- A main effect of set was found for both bench press and leg press RTF.
Conclusions:
- Nitrate supplementation does not appear to enhance strength endurance performance in physically active males with prior strength training experience.
- The findings suggest that nitrate may not be an effective ergogenic aid for improving RTF in this population.
- Further research could explore different dosages or populations to clarify nitrate's role in resistance exercise.
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