Table 1.
Nerve | Sites | Side | Latency (ms) | Amplitude (mV) | Conduction velocity (m/s) | F waves (ms) |
---|---|---|---|---|---|---|
Motor | ||||||
Median | Elbow–wrist/APB | Right | 3.2 (N<3.5) | 4.2 (N>5) | 46 (N>45) | 25.3 (N<35) |
Left | 3 (N<3.5) | 4.6 (N>5) | 48 (N>45) | 26.6 (N<35) | ||
Ulnar | Elbow–wrist/ADM | Right | 3.5 (N<3.5) | 4.3 (N>5) | 47.5 (N>45) | 28.7 (N<35) |
Left | 3.2 (N<3.5) | 4.2 (N>5) | 46 (N>45) | 29.1 (N<35) | ||
Tibial | Knee–ankle/AH | Right | 5.9 (N<5) | 1.5 (N>2) | 48 (N>45) | 62.2 (N<55) |
Left | 6.3 (N<5) | 1.8 (N>2) | 45 (N>45) | 63 (N<55) | ||
Peroneol | Fib head ankle/EDB | Right | 5.5 (N<5) | 0.8 (N>2) | 42 (N>45) | 68.2 (N<55) |
Left | 5 (N<5) | 1 (N>2) | 43 (N>45) | 67 (N<55) | ||
Sensory | ||||||
Median | Wrist/3rd finger | Right | 3.7 (N<3.5) | 4.5 (N<5) | 42 (N>45) | – |
Left | 3.8 (N<3.5) | 5.8 (N<5) | 45 (N>45) | – | ||
Ulnar | Wrist/5th finger | Both | Not found | Not found | – | – |
Superficial peroneal | Leg/ankle | Both | Not found | Not found | – | – |
Sural | Calf/ankle | Both | Not found | Not found | – | – |
APB: Abductor pollicis brevis; ADM: Abductor digitiminimi; AH: Abductor hallucis; EDB: Extensor digitorum brevis; Fib head: Fibular head; N: Normal values.