Journal article
The Effect of a Multi-Ingredient Pre-Workout Supplement on Time to Fatigue in NCAA Division I Cross-Country Athletes
Nutrients, Vol.13(6), 1823
05/27/2021
PMID: 34071868
Web of Science ID: WOS:000667384300001
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Abstract
This investigation aimed to determine the effect of a multi-ingredient pre-workout supplement (MIPS) on heart rate (HR), perceived exertion (RPE), lactate concentration, and time to fatigue (TTF) during a running task to volitional exhaustion. Eleven NCAA Division I cross-country runners (20 +/- 2 year; height: 171 +/- 14 cm; weight: 63.5 +/- 9.1 kg) participated in this randomized, double-blind, placebo-controlled cross-over study. Bayesian statistical methods were utilized, and parameter estimates were interpreted as statistically significant if the 95% highest-density intervals (HDIs) did not include zero. TTF was increased in the MIPS condition with a posterior Mean(diff) = 154 +/- 4.2 s (95% HDI: -167, 465) and a 0.84 posterior probability that the supplement would increase TTF relative to PL. Blood lactate concentration immediately post-exercise was also higher in the MIPS condition compared to PL with an estimated posterior Mean(diff) = 3.99 +/- 2.1 mmol (95% HDI: -0.16, 7.68). There were no differences in HR or RPE between trials. These findings suggest that a MIPS ingested prior to sustained running at lactate threshold has an 84% chance of increasing TTF in highly trained runners and may allow athletes to handle a higher level of circulating lactate before reaching exhaustion.
Details
- Title
- The Effect of a Multi-Ingredient Pre-Workout Supplement on Time to Fatigue in NCAA Division I Cross-Country Athletes
- Publication Details
- Nutrients, Vol.13(6), 1823
- Resource Type
- Journal article
- Publisher
- MDPI
- Number of pages
- 10
- Copyright
- © 2021 by the authors.
- Identifiers
- WOS:000667384300001; 99380570896006600
- Academic Unit
- Biology; Hal Marcus College of Science and Engineering
- Language
- English