Electromyography and clinical neurophysiology
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Electromyogr Clin Neurophysiol · Jan 2004
Randomized Controlled Trial Clinical TrialThe effect of transcutaneous electrical nerve stimulation on sympathetic skin response.
The aim of present study was to determine whether combination of transcutaneous electrical nerve stimulation (TENS) and acupuncture inhibits sympathetic nerve activity in healthy humans. Multiunit efferent postganglionic sympathetic activity was recorded with Toennies set. In this study, the aim was to obtain latency, amplitude and duration of sympathetic skin response (SSR) and skin temperature (ST) from both hands in 15 healthy subjects. ⋯ TENS applied at AG and NSG caused a significant increase in ST (P = 0.001), significant increase in latency of SSR (P = 0.001), significant decrease in amplitude of SSR (P = 0.001) and no significant changes were observed in duration of SSR (P > 0.05). Then statistical analysis showed differences between both of groups (AG & NSG) for ST and SSR post--TENS. Transcutaneous electrical nerve stimulation inhibits sympathetic nerve activity in healthy humans.
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Electromyogr Clin Neurophysiol · Jan 2004
Comparison of sympathetic skin response between palmar hyperhidrotic and normal subjects.
Palmar hyperhidrosis is a disorder with excessive sweating. The purpose of this study is to evaluate the autonomic function in palmarhyperhidrotic patients with Sympathetic skin response (SSR) test. In this study SSr was performed for the upper limbs of 20 patients with palmar hyperhidrosis, who did not have any other systemic or localized wrist and palmar disease as "Involved Group" and 28 healthy subject as "Control Group" without any palmar hyperhidrosis, systemic or local disease. ⋯ V. < 0.001) 95%. Beside, in this study, we observed a direct correlation between severity of symptom and the degree of SSR abnormality. Therefore, involvement of sympathetic nervous system in palmar hyperhidrosis were highly suspected.