Table 3

Nerve conduction studies (mean ( SD))

Investigated indices in nervesMedianUlnarTibial/medial plantarPeroneal
Neuropathic patients, n=92 investigationsNormal valuesNeuropathic patients, n=92 investigationsNormal valuesNeuropathic patients, n=92 investigations )Normal valuesNeuropathic patients, n=92 investigationsRange of normal values
DML4.78 (0.25)⩽4.43.78 (0.26)⩽3.46.31 (0.09)⩽5.8
MCV52.6 (2.4)>45.049.1 (2.5)>45.051.0 (3.8)>45.041.0 (1.6)>42.0
CMAP4.64 (0.56)>2.03.81 (0.51)>2.04.56 (0.62)>2.02.85 (0.31)>2.0
SNAP5.2 (0.28)4–154.75 (0.31)4–12
DSL5.12 (0.18)<4.46.23 (0.28)<5.6
  • DML=Distal motor latency (ms); MCV=motor conduction velocity (m/s); MAP=compound muscule action potential (mV); SNAP=sensory nerve action potential (μV); DSL=distal sensory latency (ms).