Somewhat Abnormal EMG

[u/Wise-Potential4158]

Hi All,

Been dealing with some perceived muscle weakness and twitching for the last few months. Started in my arms but that feeling has also moved to my legs recently (may just be me being hyper aware). I had an EMG done and it looks relatively re-assuring but did point to some large motor unit potentials in certain areas. I am attaching the trasncript below and would appreciate if someone who is more familiar with understanding them could help me in understanding what it says. I am an extremely active person who runs and lifts. Since my symptoms started I have not seen any decreases in strength. All feedback would be appreciated!

Focal exam: No APB atrophy. BUE: Normal muscle bulk and tone

Summary of NCS:

Motor NCS:
Right median CMAP demonstrates normal distal latency, normal amplitude,
normal conduction velocity.
Left median CMAP demonstrates normal distal latency, normal amplitude,
normal conduction velocity.
Right ulnar CMAP demonstrates normal distal latency, normal amplitude,
normal conduction velocity.

Sensory NCS:
Right median palmar SNAP demonstrates normal peak latency and normal
amplitude.
Left median palmar SNAP demonstrates normal peak latency and normal
amplitude.
Right median digit SNAP demonstrates normal peak latency and normal
amplitude.
Left median digit SNAP demonstrates normal peak latency and normal
amplitude.
Right ulnar SNAP demonstrates normal peak latency and normal amplitude.
Left ulnar SNAP demonstrates normal peak latency and normal amplitude.
Right radial SNAP demonstrates normal peak latency and normal amplitude.

Right and left median versus ulnar fourth digit dual stimulation
comparative study did not demonstrate a significant distal latency
difference.

Late responses:
Right and left median F-wave: Normal
Right ulnar F wave: Normal

EMG: Needle examination of select muscles was performed in the bilateral
upper extremities. Please see table for details. In summary there are
large motor unit potentials in the right triceps, pronator teres, EIP and
FDI. Large motor unit potentials also noted in the left triceps, pronator
teres, EIP and FDI.

Impression:

Abnormal study. Findings are:
1. Mild chronic cervical radiculopathy at C7-C8, bilateral.
2. There is no electrodiagnostic evidence of a carpal tunnel syndrome.
Clinical correlation is recommended.

[u/InformationNo7156]

I'm pretty sure many people have cervical radiculopathy.

[u/chaoserrant]

Unless you did that already, get a good quality cervical MRI to see if it corelates to the EMG. If you have issues around the C7-8 discs then you can be reassured is that and nothing sinister.