This study is evaluating reflex board training to see if it will help people who frequently roll their ankles. We are investigating several tests that evaluate the ability of the neuromuscular system to control ankle movement. This study is in 2 parts:Part 1 looks at changes after 1 day of reflex training; Part 2 looks at changes after 6 weeks of reflex training. It is thought that the reflex training will improve measures of static and dynamic balance as well as spinal reflex measures.