Effect of Vibration Stimulation Applied to Different Frequencies in Cortical Excitability and Muscular Function: Randomised Clinical Trial

The vibration stimulation is regarded as a new method of training and therapy to change afferent parts and cortical projections, which are important for motor control. This study aims to check effects of different frequency parameters for electrical cortical potentials and electrical muscular potentials in healthy young adults. 80 volunteers will participate in the study, and they will be randomly subdivided in four groups for trials. The methodology consists of electroencephalographic and electromyographic assessment before and after 15-minute vibration application with a digital vibratory pad.

Study Overview

• Status: Unknown
• Conditions: Healthy
• Intervention / Treatment: Procedure: vibration

Detailed Description

The vibratory stimulation is regarded as a new training method and capable of modulating peripheral afferents and cortical projections therapy, which are important in motor control. This study aims to determine the effects of different parameters on cortical frequency electric potential and electric potential muscle in healthy young adults. Will participate in the study 80 volunteers, these randomly divided into four groups for the experimental procedures. The methodological approach consists of an electroencephalographic and electromyographic evaluation before and after 15 minutes of application of vibration through a digital vibrating pad.

• Study Type: Interventional
• Enrollment (Anticipated): 80
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: janaina silva; Phone Number: 558699317552; Email: fisiojanainams@gmail.com

Study Locations

• Brazil
  • Piauí
    • Teresina, Piauí, Brazil, 64020290
      • Janaina de Moraes Silva
      • Contact: janaina silva; Phone Number: 558699317552; Email: fisiojanainams@gmail.com
      • Contact: janaina; Phone Number: 558699317552; Email: fisiojanainams@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 60 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Physically and mentally healthy
• Right-handed volunteers who are not using psychoactive or psychotropic substances,
• Have nourished themselves up to three hours before the experiment.

Exclusion Criteria:

• Under 18-year- and over-60-old volunteers
• who do not fit into using data collection equipment,
• individuals who have slept less than six to eight hours the night before the experiment,
• who have already undergone vibration training and had problems with using it.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
No Intervention: alpha band of the EEG and electromyographic activity; - 20 will be in the evaluation group (EG); then review the alpha band of EEG and EMG activity.
Experimental: Vibration; • 20 vai participar no grupo de baixa freqüência de vibração estimulação (LFVS);; 20 no grupo de estimulação da vibração de média freqüência (MFVS);; 20 vai participar no grupo de alta freqüência de vibração estimulação (HFVS). then review the alpha band of EEG and EMG activity.	Procedure: vibration

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Effect of vibration stimulation applied to different frequencies in cortical excitability and muscular function: randomised clinical trial	We know that the vibration has multiple physiologic effects, promoting normal patterns of motor activity by changing motor-neuron excitability. Vibrations increase the final afferent influx of the primary muscular fuse, allowing the reflex contraction, the so-called tonic vibration reflex . This reflex is mediated by both segmental and supra-segmental spine path, and is supported by upper centres.	1 month
Effect of vibration stimulation applied to different frequencies in cortical excitability and muscular function: randomised clinical trial	The 80 volunteers will be randomly gathered in study groups by random computer-given numbers. From these 80 volunteers, 20 will be in the evaluation group (EG); 20 will participate in the group of low-frequency vibration stimulation (LFVS); 20 in the group of medium-frequency vibration stimulation (MFVS); and 20 will take part in the group of high-frequency vibration stimulation (HFVS).	1 month
Effect of vibration stimulation applied to different frequencies in cortical excitability and muscular function: randomised clinical trial	The 80 volunteers will be randomly gathered in study groups by random computer-given numbers. From these 80 volunteers, 20 will be in the evaluation group (EG); 20 will participate in the group of low-frequency vibration stimulation (LFVS); 20 in the group of medium-frequency vibration stimulation (MFVS); and 20 will take part in the group of high-frequency vibration stimulation (HFVS). The three groups is intended to observe increased alpha band	1 month

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Effect of vibration stimulation applied to different frequencies in cortical excitability and muscular function: randomised clinical trial	The 80 volunteers will be randomly gathered in study groups by random computer-given numbers. From these 80 volunteers, 20 will be in the evaluation group (EG); 20 will participate in the group of low-frequency vibration stimulation (LFVS); 20 in the group of medium-frequency vibration stimulation (MFVS); and 20 will take part in the group of high-frequency vibration stimulation (HFVS). The three groups is intended to observe increased electromyographic activity of the muscles	1 month

Collaborators and Investigators

• Sponsor: Universidade do Vale do Paraíba

Study record dates

Study Major Dates

• Study Start: May 1, 2014
• Primary Completion (Anticipated): July 1, 2014
• Study Completion (Anticipated): July 1, 2014

Study Registration Dates

• First Submitted: April 7, 2014
• First Submitted That Met QC Criteria: April 21, 2014
• First Posted (Estimate): April 23, 2014

Study Record Updates

• Last Update Posted (Estimate): April 23, 2014
• Last Update Submitted That Met QC Criteria: April 21, 2014
• Last Verified: April 1, 2014

More Information

Terms related to this study

• Keywords: physiotherapy; vibration; cortex; muscles
• Other Study ID Numbers: janaina de moraes silva