What can the equivalent of three cups of coffee do for your cardio day? A study published in the Journal of the International Society of Sports Nutrition measured the performance enhancing qualities of 5 mg of caffeine per kg of body weight on experienced triathletes competing in a 5000 meter race. That calculates out to 300 mg for a 130 pound adult.
After determining their race speed after taking a placebo pill, the same athletes ran the same 5000 meter race with caffeine. Since the efforts were separated by a week, lack of recovery wasn't holding anyone back. Caffeine helped propel these runners almost a minute faster. The average time was 21.39 seconds without caffeine, and 20.48 seconds with the world's favorite energy booster. To learn how Olympic style lifts can work for distance runners, read today's Breaking News post at optimumnutrition.com