Table 2.
Summary of experimental results.
|
Patients |
Control subjects |
||||
| fU (Hz) | |||||
| Range | 6.0–18.5 | 7.0–20.0 | |||
| Mean (SD) | 10.9 (2.9) | 14.6 (3.4) | |||
| Recordings | Rest (n = 32) |
Postural (n = 31) |
Postural (n = 34) |
||
| n of MUs | 35 | 31 | 35 | ||
| Tremor Component | Primary | Secondary | Primary | Secondary | Single |
| fT (Hz) | |||||
| Range | 4.5–7.0 | 6.0–9.0 | 4.5–7.0 | 6.0–9.5 | 6.5–10.0 |
| Mean (SD) | 5.9 (0.80) | 7.7 (0.91) | 6.1 (0.84) | 7.9 (0.92) | 8.2 (0.93) |
| AT (m/s2) | |||||
| Range | 0.252–2.309 | 0.015–0.340 | 0.376–3.085 | 0.046–0.344 | 0.034–0.328 |
| Mean (SD) | 0.843 (0.056) | 0.144 (0.112) | 0.958 (0.076) | 0.164 (0.084) | 0.156 (0.072) |
| MU/EMGCoh | |||||
| Range | 0.23–0.96 | 0.05–0.75 | 0.21–0.97 | 0.04–0.80 | 0.04–0.77 |
| Mean (SD) | 0.73 (0.18) | 0.20 (0.19) | 0.76 (0.16) | 0.24 (0.19) | 0.19 (0.17) |
AT, tremor amplitude; fU, MU mean firing rate; fT, tremor frequency; MU/EMGCoh, MU/EMG coherence value.