Beverage based on whey permeate with phenolic extract of jabuticaba peel: A pilot study on effects on muscle and oxidative stress in trained individuals

Abstract

Abstract A hydroelectrolytic beverage based on whey permeate plus phenolic extract of jabuticaba peel (HB) was tested by soccer athletes in order to evaluate effects on markers of muscle damage and oxidative stress. The athletes were randomized into three groups: intake of commercial isotonic without antioxidants (CB); water intake (WA) and HB intake. Blood samples were collected before and after the exercise protocol performed by the athletes, to whom the tested beverages were administered. The HB group had a similar behavior to the CB group when we evaluate the markers of urea, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and creatine kinase (CK), showing positive results in attenuating muscle damage in relation to the WA group. The antioxidant capacity of plasma and glutathione s-transferase increase significantly after the test only for the HB group. Ingestion of HB may be conducive to attenuation of muscle damage and oxidative stress in trained individuals.