Acute citrulline-malate supplementation improves maximal strength and anaerobic power in female,masters athletes tennis players |
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| Authors: | Jordan M Glenn Michelle Gray Austen Jensen Matthew S Stone Jennifer L Vincenzo |
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| Institution: | 1. Sport &2. Movement Science Laboratory, Department of Kinesiology, Louisiana Tech University, Ruston, LA, USA;3. Human Performance Lab, University of Arkansas, Fayetteville, AR, USA;4. Office for Studies on Aging, University of Arkansas, Fayetteville, AR, USA;5. Department of Physical Therapy, University of Arkansas for Medical Sciences, Little Rock, AR, USA |
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| Abstract: | Citrulline-malate (CM) is a precursor to nitric-oxide (NO) in the NO synthase (NOS) pathway and is suggested to increase exercise performance in younger individuals. With age, NO production decreases and augmented NO production may provide beneficial effects on sports performance among masters athletes (MAs). Purpose: To examine the effects of acute CM supplementation on grip strength, vertical power, and anaerobic cycling performance in female, MA tennis players. Methods: Seventeen female MA (51?±?9 years) completed two double-blind, randomized trials consuming CM (12?g dextrose?+?8?g CM) and placebo (PLA) (12?g dextrose). One hour after consumption, subjects completed grip strength, vertical power, and Wingate anaerobic cycling assessments in respective order. Maximal and average grip strength, peak and average vertical power, anaerobic capacity, peak power, explosive power, and ability to sustain anaerobic power were calculated from the tests. Results: When consuming CM, participants exhibited greater maximal (p?=?.042) and average (p?=?.045) grip strength compared to PLA. No differences existed between trials for peak (p?=?.51) or average (p?=?.51) vertical power. For the Wingate, peak power (p?p?p?Conclusions: These data suggest that consuming CM before competition has the potential to improve tennis match-play performance in masters tennis athletes. However, this study utilized a controlled laboratory environment and research evaluating direct application to on-court performance is warranted. |
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| Keywords: | Ergogenic aid nitric-oxide Wingate amino-acid sport performance aging |
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