Akifumi Matsuo, a vital dynamics expert who was a professor at the National Institute of Fitness ... the 100 meters, he said. Matsuo said his study of Lewis showed that the sprint should be ...

The 13 subjects on average finished the 100-meter sprint in 11.40 seconds after taking the placebo. But their times averaged 11.26 seconds after ingesting the caffeine, down 0.14 second ...