Acute effects of high-frequency microfocal vibratory stimulation on the H reflex of the soleus muscle. A double-blind study in healthy subjects

Alfonsi, Enrico and Paone, Paolo and Tassorelli, Cristina and De Icco, Roberto and Moglia, Arrigo and Alvisi, Elena and Marchetta, Lucky and Fresia, Mauro and Montini, Alessandra and Calabrese, Marzia and Versiglia, Vittorio and Sandrini, Giorgio (2015) Acute effects of high-frequency microfocal vibratory stimulation on the H reflex of the soleus muscle. A double-blind study in healthy subjects. Functional Neurology, 30 (4). pp. 269-274. ISSN 1971-3274

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Abstract

This study in healthy subjects examined the effects of a system delivering focal microvibrations at high frequency (Equistasi®) on tonic vibration stimulus (TVS)-induced inhibition of the soleus muscle H reflex. Highfrequency microvibrations significantly increased the inhibitory effect of TVS on the H reflex for up to three minutes. Moreover, Equistasi® also significantly reduced alpha-motoneuron excitability, as indicated by the changes in the ratio between the maximumamplitude H reflex (Hmax reflex) and the maximumamplitude muscle response (Mmax response); this effect was due to reduction of the amplitude of the H reflex because the amplitude of muscle response remained unchanged. The present findings indicate that Equistasi® has a modulatory effect on proprioceptive reflex circuits. Therefore, Equistasi® might interfere with some mechanisms involved in both physiological and pathophysiological control of movement and of posture.

Item Type: Article
Uncontrolled Keywords: H reflex, high-frequency microvibrations, tonic vibratory stimulation
Subjects: 600 Tecnologia - Scienze applicate > 610 Medicina e salute (Classificare qui la tecnologia dei servizi medici) > 616 Malattie (classificare qui la Clinica medica, la medicina basata sull'evidenza, la Medicina interna, la Medicina sperimentale) > 616.8 Malattie del sistema nervoso e disturbi mentali (Classificare qui la Neuropsichiatria, la Neurologia)
Depositing User: Marina Spanti
Date Deposited: 24 Sep 2019 14:18
Last Modified: 24 Sep 2019 14:18
URI: http://eprints.bice.rm.cnr.it/id/eprint/12666

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