TABLE 3.
Balance Accelerometer Measure Standard Scores for Healthy and Concussed Patientsa
| Patient Group | EO/Firm | EC/Firm | EO/Foam | EC/Foam | TS/EO | TS/EC | Total |
|---|---|---|---|---|---|---|---|
| Healthy | 1.1 ± 1.2 | 1.7 ± 1.1 | 1.6 ± 1.0 | 6.2 ± 2.7 | 2.2 ± 1.6 | 4.9 ± 4.0 | 17.7 ± 9.5 |
| All concussions | 0.9 ± 1.1 | 1.9 ± 1.4 | 2.4 ± 1.4 | 6.7 ± 2.7: | 2.3 ± 1.7 | 7.5 ± 6.9 | 21.8 ± 11.2 |
| Concussion duration ≤2 wk | 1.1 ± 0.9 | 2.1 ± 1.1 | 2.1 ± 0.6 | 7.0 ± 2.6 | 2.4 ± 1.3 | 5.7 ± 4.9 | 20.5 ± 6.5 |
| Concussion duration >2 wk | 0.9 ± 1.2 | 1.8 ± 1.5 | 2.4 ± 1.6 | 6.6 ± 2.8: | 2.2 ± 1.8 | 8.1 ± 7.3 | 22.1 ± 12.3 |
a
Scores standardized to young healthy adults in the EO/firm condition (mean sway, 9.4 ± 2.2 mG/s). Data are shown as mean ± standard deviation for 6 sensory/stance conditions and total scores. EO/Firm, eyes open/firm surface; EC/Firm, eyes closed/firm surface; EO/Foam, eyes open/foam surface; EC/Foam, eyes closed/foam surface; TS/EO, tandem stance/eyes open; TS/EC, tandem stance/eyes closed; Total, sum of condition-specific standard scores.