PURPOSE:​ The purpose of this study was to test the validity of the Sway Balance Application™ in comparison to the Balanced Error Scoring System test when evaluating balance prior to and immediately after exercise.

DESIGN:​ Pre and post experimental design.

PARTICIPANTS:​ A total of 7 male collegiate soccer players participated in this study. Volunteers were from the Men's soccer team at California University of Pennsylvania.

METHODS:​ Volunteers read and signed the informed consent form. Following this, participants completed two separate sessions of balance testing, one for the BESS test and one for the Sway Balance application™. The order of the tests was determined by the counterbalance chart. Tests were completed pre and post physical activity.

FINDINGS:​ Pre and post scores showed a significant decrease in BESS scores. However, there was a significant increase in Sway Balance performance between pre and post scores. There was a negative correlation for pre scores between BESS and Sway. There was a negative correlation for post scores between BESS and Sway.

CONCLUSION:​ Based on the findings of this study, athletic trainers need to be aware of the effects of activity when evaluating mild head injuries or balance.