mac.com A practical issue in the diagnosis of amyotrophic lateral sclerosis (ALS) is how long the EMG must be observed before a muscle can be declared free of fasciculations with some degree of ...

The modern term ‘fasciculation’ was introduced by Denny-Brown and Pennybacker in their seminal 1938 paper4 to describe electromyographic (EMG) evidence that these involuntary twitches were due to ...

Patient functional characteristics. In all patients, needle EMG showed clear signs of neurogenic changes in all examined muscles, with large polyphasic motor unit potentials, fibrillation potentials, ...

At that time, a diagnosis of myotonic dystrophy type 1 (DM1) was considered. A needle electromyogram (EMG) confirmed the presence of myotonia; however, a muscle biopsy did not reveal the ...

Amyotrophic lateral sclerosis (ALS) is a fatal disease, characterized by the degeneration of both upper and lower motor neurons. Despite decades of research, we still to date lack a cure or disease ...

A hypnic jerk is a sudden involuntary twitch or muscle contraction that occurs as you fall asleep. Also known as sleep starts, these hypnic jerks may jolt the entire body or affect only one part, like ...