Postural control after a 2-mile run

Postural control is essential for normal daily activities. It is also a crucial requirement for athletic events and activities. Deterioration in this postural control mechanism is termed postural instability and results in increased postural sway. Decrements in postural sway have been documented following a 15.5-mile run. It remains to be seen whether a shorter distance run will cause a similar decrease in postural control. Therefore, the purpose of this study was to assess the effects of a 2-mile run on postural sway in healthy subjects. Forty-four healthy subjects were assigned to an experimental group (2-mile run) or a control group. Postural sway was measured before and after the run with the Biodex Stability System Overall Stability Index and a clinical balance test called the Military Academy Stance Test. There was a significant before-after run Biodex Stability System Overall Stability Index (p < 0.05) and Military Academy Stance Test index (p < 0.05) increase in the experimental group. There was no significant change for the control group. It was concluded that a 2-mile run does produce a significant increase in postural sway as measured using the Biodex Stability System Overall Stability Index and Military Academy Stance Test.