Pediatric EMG - Normal values

Information Supplied by Dr Emanuil Giuris

Based  on information from Jones's Pediatric Clinical Electromyography and Liveson' s Laboratory reference

Motor EDX

Median and Ulnar nerve

Age Amplitude (mV) Distal latency (ms) CV(m/s) F wave
neonate >2 <3 >20  
1-6 mo >2 <3 >30  
7-12 mo >2 <3 >35 <18
13-24 mo >3 <3 >38 <18

Peroneal and tibial nerve

Age Amplitude (mV) Distal latency (ms) CV(m/s) F wave
neonate >2 <3 >20  
1-6 mo >2 <3 >30  
7-12 mo >2 <3 >35 <25
13-24 mo >3 <3 >38 <25

 

Sensory EDX

Median, Ulnar and Sural nerve

Age Amplitude (uV) CV(m/s)
neonate >5 >22
1-6 mo >10 >33
7-12 mo >10 >35
13-24 mo >10 >42

 

H Reflex (tibial)

<18ms for infants <2y