The Effect of High-Doses of Taurine Ingestion on Time to Exhaustion Running Performance

The study aimed to investigate the effect of acutely consuming high-dose isolated 6 g taurine 90 min before incremental treadmill-running time exhaustion (TTE) performance on maximal oxygen uptake (VO2max), heart rate (HRmax), TTE, and ratings perceived exertion (RPE). A total ten well-trained, competitive male endurance (biathlon) athletes participated in this study. double-blind, randomized crossover design was used consisted three separate testing sessions. During second third sessions, exercise protocols, participants consumed ~500 ml a sugar-free lemonade drink with either or nothing added (placebo). TTE started at 6km·h-1, warmed up for minutes constant speed. After warm-up, treadmill's speed increased by 0.016km/h per second, slope treadmill 0.5% each 60 seconds. Oxygen (VO2) HR were measured while participant running treadmill. RPE immediately after trial using Borg Scale (6-20 points). As result, acute ingestion did not enhance HRmax, but result non-significant slight change VO2max (2%).