Table 1. Participant Demographics.

There were no significant differences (P>0.05) for participant demographics expect for Concussion History, expected as per inclusion guidelines, which was significant (P<0.001). The CONC group were acutely classified with an 11.9% loss of consciousness rate and a 26.2% post-traumatic amnesia rate. The Symptom Score was a 22 item 0 – 6 graded symptom checklist with a higher score reflecting greater symptom burden. The Standard Assessment of Concussion is a brief cognitive screen with a score range of 0 – 30 with a higher score reflecting better cognitive performance. These were only collected on the CONC participants.

	CONC	Control
Gender	52.4% Female	52.4% Female
Age (years)	19.2 ± 2.1	20.1 ± 1.3
Height (cm)	173.5 ± 12.2	177.2 ± 11.0
Weight (kg)	79.0 ± 23.3	87.7 ± 24.4
Concussion History	0.9 ± 1.2	0.0 ± 0.0
Symptom Severity (0 – 132)	27.0 ± 24.0	NA
Standard Assessment of Concussion	26.2 ± 3.8	NA
Sport Participation	Football: 15 Cheerleading: 6 Women’s Soccer: 6 Women’s Basketball: 6 Men’s Soccer: 4 Men’s Basketball: 2 Softball: 1 Track & Field: 1 Tennis: 1	Football: 13 Cheerleading: 9 Women’s Soccer: 7 Women’s Basketball: 5 Men’s Basketball: 3 Men’s Soccer: 3 Track & Field: 2