Article citations

    Hopkins, W.G. Competitive performance of elite track-and-field athletes: Variability and smallest worthwhile enhancements. Sports Sci. 2005, 9, 17–20.

has been cited by the following article:

  • TITLE: The Effects of Caffeinated “Energy Shots” on Time Trial Performance
  • AUTHORS: Matthew Mark Schubert,Todd Anthony Astorino,John Leal Azevedo Jr.
  • KEYWORDS: time trial, caffeine, taurine, yerba maté, distance running
  • JOURNAL NAME: Nutrients DOI: 10.3390/nu5062062 Sep 07, 2014
  • ABSTRACT: An emerging trend in sports nutrition is the consumption of energy drinks and “energy shots”. Energy shots may prove to be a viable pre-competition supplement for runners. Six male runners (mean ± SD age and VO 2max: 22.5 ± 1.8 years and 69.1 ± 5.7 mL·kg ?1·min ?1) completed three trials [placebo (PLA; 0 mg caffeine), Guayakí Yerba Maté Organic Energy Shot? (YM; 140 mg caffeine), or Red Bull Energy Shot? (RB; 80 mg caffeine)]. Treatments were ingested following a randomized, placebo-controlled crossover design. Participants ran a five kilometer time trial on a treadmill. No differences ( p > 0.05) in performance were detected with RB (17.55 ± 1.01 min) or YM ingestion (17.86 ± 1.59 min) compared to placebo (17.44 ± 1.25 min). Overall, energy shot ingestion did not improve time-trial running performance in trained runners.