Effect of an Exercise Bout in Plasma and Fecal Profile

After a standardized warm-up of 10 minutes of continuous running on a treadmill at 60% of their maximum heart rate (HRmax), subjects will perform a maximum oxygen consumption test (VO2max) with a gas analyzer (UltimaTM Series, MGC Diagnostic Corporation, St. Paul, MN, USA. The protocol will start with a slope of 1% at a speed of 10 km/h, with increments of 0.3 km/h every 30 s until volitional exhaustion. Finally, ten minutes after the treadmill test, volunteers will run 1 kilometer (t1km) as fast as possible and the time needed to cover the distance will be recorded.