3D Analysis of the Effects of tDCS (Transcranial Direct Current Stimulation) on a Functional Task in High Level Athletes

Not Applicable

Completed

• Conditions: Athlete; Healthy
• Interventions: Device: tDCS

• Registration Number: NCT03901222
• Lead Sponsor: University of Liege

Brief Summary

Relatively high level athletes will undergo 2 randomized, cross-over counterbalanced sessions of bi-anodal tDCS (transcranial direct current stimulation) or sham tDCS The primary outcome is a 3D evaluation coupled with EMG (Electromyography) of their primary lower limb muscles after each session

Detailed Description

Recruitment :

Relatively high level athletes will be recruited through social media and advertisements.

Each subject came twice to the Liege University Hospitals' Human Movement Analysis Laboratory.

After placing the different infrared emitters and placing and calibrating the surface EMG electrodes, subjects underwent 3 maximal squat jumps (without upper limb implication). They were then familiarized with the fatigue protocol (8 jumps at a 33 jumps per minute pace).

Then each subject received either bi-anodal tDCS of sham tDCS. Neither the evaluator or the subject knew which they were receiving. Immediately following tDCS, subjects underwent another warmup 3 maximal squat jumps, and then the fatigue protocol (comprised of 30 maximal jumps at a rate of 33 per minute).

Study Timeline

• Study First Submitted: 2019-03-28
• Study Start: 2019-03-31
• Study First Submitted QC: 2019-04-02
• Study First Posted: 2019-04-03
• Primary Completion: 2019-07-31
• Study Completion: 2019-08-31
• Status Verified: 2020-03
• Last Update Submitted: 2020-03-30
• Last Update Posted: 2020-03-31

Recruitment & Eligibility

• Status: COMPLETED
• Sex: Male
• Target Recruitment: 10

Inclusion Criteria

• At least 10 hours of sport a week
• Right handed and footed

Exclusion Criteria

• One on the TSST (in high and relatively high risk sections)
• Previous neurological or orthopedic pathologies affecting limbs

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Sham tDCS	tDCS	Subjects will receive 20 minutes of Sham anodal tDCS
Bi-Anodal tDCS	tDCS	Subjects will receive 20 min of bi-anodal tDCS

Primary Outcome Measures

Name	Time	Method
Peak Height	Changes between Prior and Immediately Following tDCS and Sham	Peak height (measured by the 3D device) is measured after each of the 30 repetitions as well as after the 3 jumps before and after tDCS. Height decrease will also be looked at
Gluteal EMG (Electromyography) recordings (% of maximal EMG value)	Changes between Prior and Immediately Following tDCS and Sham	Bilateral Gluteal EMG
Quadriceps EMG (Electromyography) recordings (% of maximal EMG value)	Changes between Prior and Immediately Following tDCS and Sham	Bilateral Quadriceps EMG triceps surae will be measured
Triceps EMG (Electromyography) recordings (% of maximal EMG value)	Changes between Prior and Immediately Following tDCS and Sham	Bilateral Triceps Surae EMG

Trial Locations

Locations (1)

Liege Univeristy Hospital; 🇧🇪 Liege, Belgium