What is the relationship between visual dysfunction during exercise and the development of persistent post-concussion symptoms (PPCS)? Adolescent athletes who had a concussion within the past week were administered the King Devick Test, a test used to assess visual dysfunction after concussion, and then completed the Buffalo Treadmill Test (experimental group) or stretching exercises (control group). Two minutes following the treadmill test or the stretching, participants completed the King Devick Test again.
The results showed that participants who showed visual dysfunction following exercise were more likely to develop PPCS (71% vs 34%), which corresponds to a relative risk of 3.13. Exercise-provoked visual dysfunction following concussion may be a useful tool in predicting the risk of prolonged recovery and could guide treatment decisions early after injury.
The full article can be found on the Clinical Journal of Sport Medicine linked here: