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. 2014 Jan 15;15:22–26. doi: 10.12659/AJCR.889954

Table 2.

Electromyography.

Side Muscle Nerve Root Ins act Fibs PSW Amp Dur Poly Recruitment Int pat
Right Anterior tibialis Peroneal L4-5 Normal Normal Normal Normal Normal 0 Reduced 25%
Right Medial gastrocnemius Tibial S1-2 Normal Normal +1 Normal Normal 0 Reduced 25%
Right External hallucis longus Peroneal L5-S2 Normal Normal Normal Normal Normal 0 Reduced 25%
Right Vastus medialis Femoral L2-4 Normal Normal +1 Normal Normal 0 Reduced 25%

EMG reveals normal muscle membrane potential (as indicated by normal insertional activity {Ins Act}, fibrillations {Fibs} and positive sharp waves {Psw}) and intact action potential (as indicated by normal amplitude {Amp}, duration {Dur}, Polyphasic activity {Poly}). Study also reveals significantly reduced nervous system output (as indicate by recruitment {Recrt}, interference pattern {Int Pat}. Note: only 25% of the nervous system output was reaching the mentioned muscle.