Efeitos da ingestão de seis doses do suco de acerola em Marcadores bioquímicos após um teste incremental até a Exaustão

Abstract

Acerola (Malpighia emarginata) is one of the richest natural sources of ascorbic acid, besides its variety of bioactive compounds such as polyphenols, carotenoids, stilbenes, flavonoids and anthocyanins with several biofunctional properties, being evidenced by having a high antioxidant and anti-inflammatory potential in vivo and in vitro. Intense exercise and muscle contraction are associated with an increase in the generation of reactive oxygen species that promote oxidative stress in skeletal muscle. Dietary ergogenic resources are commonly used to improve exercise performance capacity and training adaptations. Thus, this study aimed to evaluate whether the intake of six doses of acerola integral juice promotes changes in the time limit or responses of muscle damage and oxidative stress in physically active individuals submitted to an incremental test until exhaustion. Fourteen men (i: 26.6 ± 5.1 years) participated in the randomized, double-blind, placebo-controlled study. In the three moments, the volunteers performed a training protocol on a treadmill until exhaustion, collecting time-limit and blood collection for biochemical markers. They supplemented a dose of 10ml/kg body of concentrated acerola juice or placebo drink, adjusted to each participant, for six consecutive days. When we analyzed, the participants ran at baseline time until exhaustion an average of 18.65±6.08min in the placebo group for 18,33±7,64min and 17,58±7,77 min until exhaustion in the group that took acerola juice, but without any statistical difference between moments (p≥0,05). No significant change in any variable of the biochemical markers was observed after consumption of acerola juice or placebo drink. Thus, the acerola juice supplementation did not influence physical performance and the biochemical markers of muscle damage and oxidative stress.