Influence of dark chocolate administration on uric acid, liver enzymes, lactate and glucose changes induced by submaximal exercise in athletes

Objective. To assess the influence of dark chocolate administration on uric acid, liver enzymes, glucose and lactate responses to summaximal exercise test in male swimmers.Subjects. Eleven competitive swimmers from the athletic club Academic, Sofia volunteered for the study.Design. A randomised study of two periods of 10 days (washout period without chocolate and administration period of 50 grams dark chocolate daily) was carried out. Each subject took part in two trials of 15 min submaximal exercise test on a bicycle ergometer consisting of two bouts of 10 min at intensity 60% VO2max and 5 min at 90%VO2max conducted without an interval to induce oxidative stress.Results. Uric acid after performing pre-administration period submaximal exercise was elevated by 11.7% (