Supplementation with a Polyphenol-Rich Extract, PerfLoad®, Improves Physical Performance during High-Intensity Exercise: A Randomized, Double Blind, Crossover Trial

Nutrients. 2017 Apr 24;9(4):421. doi: 10.3390/nu9040421.

Abstract

Workout capacity is energy-production driven. To produce peak metabolic power outputs, the organism predominantly relies more on anaerobic metabolism, but this undoubtedly has a negative and limiting impact on muscle function and performance. The aim of the study was to evaluate if an innovative polyphenol-based food supplement, PerfLoad®, was able to improve metabolic homeostasis and physical performance during high-intensity exercises under anaerobic conditions. The effect of a supplementation has been investigated on fifteen recreationally-active male athletes during a randomized, double-blind and crossover clinical investigation. The Wingate test, an inducer of an unbalanced metabolism associated to oxidative stress, was used to assess maximum anaerobic power during a high-intensity exercise on a cycle ergometer. Supplementation with PerfLoad® correlated with a significant increase in total power output (5%), maximal peak power output (3.7%), and average power developed (5%), without inducing more fatigue or greater heart rate. Instead, oxidative homeostasis was stabilized in supplemented subjects. Such results demonstrated that PerfLoad® is a natural and efficient solution capable of, similarly to training benefits, helping athletes to improve their physical performance, while balancing their metabolism and reducing exercise-induced oxidative stress.

Keywords: Wingate test; anaerobic power; oxidative stress; preworkout; pulse pressure.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Blood Pressure / drug effects
  • Cross-Over Studies
  • Dietary Supplements*
  • Double-Blind Method
  • Erythropoiesis / drug effects
  • Exercise*
  • Humans
  • Male
  • Polyphenols / administration & dosage
  • Polyphenols / chemistry
  • Polyphenols / pharmacology*
  • Young Adult

Substances

  • Polyphenols