Chronic Effects of Tendon Vibrations on the Neuromechanical Muscular Properties.

Not Applicable

Completed

• Conditions: Healthy
• Interventions: Device: Vibrasens; Other: Usual activities

• Registration Number: NCT02668224
• Lead Sponsor: Centre Hospitalier Universitaire de Saint Etienne

Brief Summary

It is a randomized, controlled clinical trial, in healthy volunteers. They are in two groups : the test one will perform the vibration training (1h of Vibrasens 3 times a week, 24 sessions) whereas the control group will not be training. The primary outcome is the maximal voluntary strength.

Detailed Description

These last 10 years, a new idea born: vibrations could have potential effects on muscular reconditioning. Researchers have previously demonstrated the effects on plantar ankle flexion, with the increase of the strength, on healthy volunteers. Nowadays physicians would like to demonstrate the effects on another muscular group: ankle's dorsal flexors. 24 sessions are programmed on 8 weeks.

Moreover, the last results showed a modification of the nervous capacities of the cortical voluntary activation. Transcranial Magnetic Stimulation (TMS) is a great tool to explore the neuromuscular function, at the cortical stage. The use of this tool will allow the characterization the effects of the vibration training on the cortical activation state.

Study Timeline

• Study Start: 2015-02
• Study First Submitted: 2016-01-22
• Study First Submitted QC: 2016-01-26
• Study First Posted: 2016-01-29
• Primary Completion: 2016-03
• Status Verified: 2016-05
• Study Completion: 2016-06
• Last Update Submitted: 2016-08-25
• Last Update Posted: 2016-08-26

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 46

Inclusion Criteria

• Between 18 and 50 years old
• Both gender
• Occasional sportsman (<4h/week)
• Affiliated to a social security scheme
• Having freely given their written consent

Exclusion Criteria

• Taking neuro-active substances able to modify cortico-spinal excitability from Day 10 to the end of the study
• Contraindication to magnetic field application
• Previous pathologies susceptible to modify the process of the tests (particularly stakeholders presenting knee or ankle pathologies)
• Participation during the same time in another interventional experimentation

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Vibrasens : Test group	Vibrasens	Training programme: vibration training 3/week from Day 1 to Day 60 + Usual activities from day 60 to Day 75.
Control group	Usual activities	Control: Usual activities from day 1 to Day 75.

Primary Outcome Measures

Name	Time	Method
Increase of maximal voluntary strength in dorsal flexion of the ankle	8 weeks	Determine if a training of 24 sessions of tendon vibrations of dorsal flexors' ankles programmed on 8 weeks allows the increase of the maximal voluntary strength in ankles' dorsal flexion, compared to a control group, with no vibration.

Trial Locations

Locations (1)

CHU de SAINT-ETIENNE; 🇫🇷 Saint-etienne, France