scholarly journals Focal Vibration Alters Human Digital Sensory Nerve Action Potentials: A Pilot Study

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Dong Qing Zhu ◽  
Fang Liu ◽  
Yu Zhu ◽  
Duan Lei ◽  
Xiang Jin ◽  
...  
Keyword(s):  
Stimulus Intensity ◽  
Action Potentials ◽  
Sensory Nerve ◽  
Electrical Stimulus ◽  
Sensory Nerve Action Potential ◽  
Vibratory Stimulation ◽  
Nerve Action ◽  
Sensory Nerve Action ◽  
The Impact ◽  
Marked Drop

Introduction. We studied the impact of vibratory stimulation on the electrophysiological features of digital sensory nerve action potential (SNAP). Methods. The antidromic digit 3 SNAP was recorded in 19 healthy adults before, during, and after applying a vibration to either 3rd or 5th metacarpal phalangeal joint (MCPJ) at 60 Hz and amplitude of 2 mm. 100% supramaximal stimulus intensity was performed in 5 subjects (randomly selected from the 19 subjects) where the SNAP sizes were recorded. Results. The amplitude of digit 3 SNAP declined to 58.9 ± 8.6 % when a vibration was applied to MCPJ digit 3. These impacts did not change by increasing the electrical stimulus intensity. The SNAP regained its baseline value immediately after the cessation of vibration stimulation. The magnitude of size reduction of digit 3 SNAP was less when vibration was moved to from MCPJ of digit 3 to MCPJ of digit 5. Discussion. The marked drop of the SNAP size during vibratory stimulation reflects the decreased responsiveness of Aβ afferents to electrical stimulation, which deserve further investigation in the study of focal vibration in neurorehabilitation.

The consequences of stimulus intensity on sensory nerve action potentials

2009 ◽  
Vol 185 (1) ◽  
pp. 108-115 ◽  
Author(s):  
Joseph Nashed ◽  
Kristina Calder ◽  
Robert Trachter ◽  
Linda McLean
Keyword(s):  
Stimulus Intensity ◽  
Action Potentials ◽  
Sensory Nerve ◽  
Nerve Action ◽  
Sensory Nerve Action

scholarly journals Electrophysiological diagnosis using sensory nerve action potential for the intraforaminal and extraforaminal L5 nerve root entrapment

2012 ◽  
Vol 22 (4) ◽  
pp. 833-839 ◽  
Author(s):  
Muneharu Ando ◽  
Tetsuya Tamaki ◽  
Mamoru Kawakami ◽  
Akihito Minamide ◽  
Yukihiro Nakagawa ◽  
...  
Keyword(s):  
Action Potential ◽  
Nerve Root ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Nerve Action ◽  
Sensory Nerve Action ◽  
Nerve Root Entrapment

Close relationship between cardiovagal function and sural sensory nerve action potential in type 2 diabetes

2019 ◽  
Vol 130 (7) ◽  
pp. 1160-1165
Author(s):  
Yun-Ru Lai ◽  
Chih-Cheng Huang ◽  
Wen-Chan Chiu ◽  
Rue-Tsuan Liu ◽  
Nai-Wen Tsai ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Action Potential ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Nerve Action ◽  
Close Relationship ◽  
Sensory Nerve Action

scholarly journals Sciatic neuropathy with preserved sensory nerve action potentials, a case series

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Matthew Ritch ◽  
Omer Suhaib ◽  
Yuebing Li
Keyword(s):  
Action Potentials ◽  
Sensory Nerve ◽  
Case Series ◽  
Normal Range ◽  
Single Institution ◽  
Lumbosacral Radiculopathy ◽  
Sciatic Neuropathy ◽  
Nerve Action ◽  
Sensory Nerve Action ◽  
Sensory Fibers

Background: Sciatic neuropathy is differentiated from lumbosacral radiculopathy based on the finding of abnormal sensory nerve action potentials (SNAPs). Cases of sciatic neuropathy with intact SNAPS have not been well described. Methods: A retrospective analysis of 12 patients with sciatic neuropathy in a single institution. Results: We describe 12 patients in whom a sciatic neuropathy was diagnosed based on a combination of history, physical exam, radiological and electrodiagnostic (EDX) findings. Lower extremity SNAPs were found to be within normal range in all patients, although SNAP amplitude asymmetry between both sides was observed in 3. Included patients were young (mean age of 40.3 years) and mostly female (9 patients). Conclusions: Sciatic neuropathy may occur with a relative sparing of sensory fibers. Recognition of this group of patients should help to avoid making a misdiagnosis of lumbosacral radiculopathy.

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