Inclusion Criteria:  10-22 years of age who have participated in organized sport activities within the past 12 months  Exclusion Criteria:  Orthopedic or neurologic, or other limitations History of seizures Previous or current diagnoses for cardiopulmonary conditions Medical diagnosis of diabetes and/or currently on medications for diabetes (e.g., insulin) Uncontrolled asthma Pregnancy History of previous positive COVID-19 test Presence of beards Claustrophobia History of moderate or severe traumatic brain injury defined as a brain injury with an associated Glasgow Coma Scale score of 12 or less Concussive event that occurred less than 6 months prior to research testing A current diagnosis of and treatment with medication for attention-deficit/hyperactivity disorder, learning disorder, depression, anxiety, or a history of more than 3 prior concussions A symptom severity score of greater than 4 points on the PCSS during the initial intake Limited English proficiency