Nerve conduction and EMG data
| September 1997 | September 1998 | |||||
|---|---|---|---|---|---|---|
| Median nerve: | ||||||
| Distal motor latency | 5.0 ms(left) | 5.1 ms (right) | ||||
| Motor amplitude, wrist | 6.5 mV | 11.3 | ||||
| Motor conduction velocity | 51 m/s | 44 m/s | ||||
| F wave latency | 31.4 ms | |||||
| SNAP | Absent (digits 2,3,4) | |||||
| Ulnar nerve: | ||||||
| Distal motor latency | 3.7 ms(left) | |||||
| Motor amplitude, wrist | 1.5 mV | |||||
| Motor conduction velocity | 46 m/s | |||||
| F wave latency | 30.9 ms | |||||
| SNAP | Absent | |||||
| Radial nerve, right: | ||||||
| SNAP amplitude | 7.6 μV | |||||
| Sensory conduction velocity | 35 m/s | |||||
| Peroneal nerve: | ||||||
| Distal motor latency | 4.0 ms (left) | 3.4 ms (right) | ||||
| Motor amplitude, ankle | 3.0 mV | 684 μV | ||||
| Motor conduction velocity | 33 m/s | 35 m/s | ||||
| Tibial nerve: | ||||||
| Distal motor latency | 4.9 ms (left) | 5.1 ms (right) | ||||
| Motor amplitude, ankle | 2.7 mV | 4.8 mV | ||||
| Motor conduction velocity | 32 m/s | 32 m/s | ||||
| F wave latency | 65.7 ms | |||||
| Sural nerve: | ||||||
| SNAP | Absent(left) | Absent (right) | ||||
| Phrenic nerve, right: | ||||||
| Motor amplitude | Absent | Absent | ||||
| Phrenic nerve, left: | ||||||
| Distal motor latency | — | 5.9 ms | ||||
| Motor amplitude | Absent | 59 μV | ||||
| Muscle: | ||||||
| Left | fib/PSW | MUP morphology | Recruitment | |||
| 9/97 9/98 | 9/97 | 9/98 | 9/97 | 9/98 | ||
| Vastus lateralis | 0 | Poly | ↓ | |||
| Tibialis anterior | 1+ | Poly | ↓ | |||
| Gastrocnemius, medial head | 0 | Poly,↑amp | ↓ | |||
| First dorsal interossei | 0 | Poly | ↓ | |||
| Deltoid | 0 | Normal | Full | |||
| Cervical paraspinals | 0 | |||||
| Lumbar paraspinals | 4+ | |||||
| Right | ||||||
| Intercostals | 3+ 0 | |||||
| Diaphragm | 0 | Poly↑dur | ↓ | |||
| Tibialis anterior | 0 | Poly↑dur, amp | ↓ | |||
| Gastrocnemius medial head | 1+ (CRDS) | Poly↑dur, amp | ↓ | |||
| Vastus medialis | 0 | Poly↑amp | Full | |||
| Deltoid | 0 | Normal | Full | |||
| Triceps | 0 | Normal | Full | |||
| Biceps | 0 | Normal | Full | |||
| Thoracic paraspinals | 0 | |||||
Abnormal values are bold or underlined; amp=amplitude; CRDS= complex repetitive discharges; dur=duration; poly=polyphasic; SNAP=sensory nerve action potential; MUP=motor unit potential; fib/PSW=fibrillations/positive sharp waves.