Motor and sensory conduction studies
| Patient | Age (years) | Median | Peroneal | Sural | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Elbow–wrist | Wrist–III digit | Knee–ankle | Sura–lateral malleolus | ||||||||
| MCV (m/s) | DML (ms) | CMAP amplitude (mV) | SCV (m/s) | SAP amplitude (µV) | MCV (m/s) | DML (ms) | CMAP amplitude (mV) | SCV (m/s) | SAP amplitude (µV) | ||
| Values are mean (range); abnormal data in bold. | |||||||||||
| CMAP, compound muscle action potential; DML, distal motor latency; MCV, motor conduction velocity; NR, not recordable; SAP, sensory action potential; SCV, sensory conduction velocity. | |||||||||||
| III.4 | 68 | 41 (50 to 69) | 4.1 (2.8 to 4.2) | 11 (6 to 34) | 40 (46 to 64) | 5 (10 to 20) | NR | NR | |||
| III.6 | 53 | 42 (52 to 72) | 4.1 (2.6 to 4.0) | 7 (7 to 40) | 48 (49 to 67) | 7 (10 to 25) | 34 (42 to 59) | 10 (3.4 to 5.0) | 0.7 (3 to 30) | 41 (47 to 61) | 0.6 (4 to 27) |
| III.2 | 52 | 52 (52 to 72) | 3.1 (2.6 to 4.0) | 8.3 (7 to 40) | 52 (49 to 67) | 14 (10 to 25) | 42 (42 to 59) | 3.9 (3.4 to 5.0) | 8.8 (3 to 30) | 53 (47 to 61) | 10 (4 to 27) |