title: The bimodal jitter: a single fibre electromyographic finding.
abstract: The jitter, obtained by SFEMG recordings, mainly reflects the neuromuscular transmission time variability and is usually Gaussian distributed. Here is reported the bimodal distribution of the interpotential intervals, the flip-flop phenomenon. Long flip-flop in cases of reinnervation may indicate alternatively continuous and saltatory nerve conduction. Short flip-flop in normal subjects may be due to muscle fibre interaction or nerve conduction irregularities.
mesh_terms: D000200:Action Potentials; D000690:Amyotrophic Lateral Sclerosis / Q000503:physiopathology; D004576:Electromyography; D004594:Electrophysiology; D006801:Humans; D007511:Ischemia / Q000503:physiopathology; D009119:Muscle Contraction; D009133:Muscular Atrophy / Q000503:physiopathology; D009157:Myasthenia Gravis / Q000503:physiopathology; D009431:Neural Conduction; D009468:Neuromuscular Diseases / Q000503:physiopathology*; D009469:Neuromuscular Junction / Q000502:physiology* / Q000503:physiopathology; D011930:Reaction Time; D013997:Time Factors