Table. Demographics and Buffalo Concussion Treadmill Test Results.
| Characteristic | Patients, No. (%) | |
|---|---|---|
| Aerobic Exercise Group (n = 52) | Stretching Group (n = 51) | |
| Age, mean (SD), y | 15.3 (1.6) | 15.4 (1.7) |
| Female | 24 (46) | 24 (47) |
| Previous concussions | ||
| 0 | 26 (50) | 29 (57) |
| 1 | 16 (31) | 12 (24) |
| 2 | 9 (17) | 8 (16) |
| 3 | 1 (2) | 2 (4) |
| Time since injury, mean (SD), d | 4.9 (2.2) | 4.8 (2.4) |
| Quantitative findings at first visit, mean (SD) | ||
| Postconcussion symptom scale scorea | 30.8 (16.5) | 33.3 (19.7) |
| Abnormal physical examination findings, No. | 2.2 (1.9) | 2.8 (1.7) |
| Resting heart rate, bpm | 74.5 (12.7) | 75.2 (12.3) |
| Buffalo Concussion Treadmill Test findings | ||
| Heart rate at symptom exacerbation, bpm | 136.9 (26.2) | 136.6 (21.2) |
| Time to symptom exacerbation on first-visit test, min | 8.7 (4.9) | 8.6 (4.3) |
| Visual analog scale scores, mean (SD)b | ||
| Pretreadmill test score | 2.5 (1.8) | 2.8 (1.8) |
| Score at symptom exacerbation | 4.7 (2.2) | 5.1 (1.9) |
a
Maximum score, 132.
b
Maximum score, 10.