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Caffeinated nitric oxide-releasing lozenge improves cycling time trial performance
J Lee1, H T Kim1, G J Solares1
1Kinesiology and Health Education, University of Texas at Austin, Austin, United States.
International Journal of Sports Medicine
|October 7, 2014
Summary
Nitric oxide lozenges with caffeine improved cycling performance by 2.1% in a recent study. This suggests that supplementing with nitric oxide can effectively enhance aerobic exercise performance.
Area of Science:
- Exercise Physiology
- Nutritional Biochemistry
Background:
- Nitric oxide (NO) production is crucial for exercise performance.
- Supplementation strategies to boost NO are being explored to enhance athletic capabilities.
Purpose of the Study:
- To investigate the effects of a caffeinated nitric oxide (NO)-releasing lozenge on oxygen consumption during steady-state exercise.
- To evaluate the impact of this lozenge on cycling time trial performance in moderately trained individuals.
Main Methods:
- A double-blinded, randomized, crossover design was employed.
- 15 moderately trained cyclists ingested a NO-releasing lozenge with 70 mg caffeine or a placebo.
- Oxygen consumption, blood lactate, and cycling time trial performance were measured.
Main Results:
- No significant differences in oxygen consumption or blood lactate were observed between the NO lozenge and placebo groups.
- Cycling time trial performance was significantly improved by 2.1% with the NO lozenge compared to placebo.
- No significant difference in the rating of perceived exertion was noted.
Conclusions:
- Acute supplementation with a caffeinated nitric oxide-releasing lozenge can effectively improve aerobic exercise performance.
- This supplementation strategy appears practical for enhancing cycling time trial performance without increasing perceived exertion.
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