Athlete, Healthy
Conditions
Keywords
tDCS, Athlete, Endurance, Fatigue, 3D
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).
Interventions
DEVICEtDCS
20 minutes of anodal tDCS (C3 & C4/FPZ) 2mA or sham
Sponsors
University of Liege
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)
Masking description
The device is preprogrammed by a third party non participating in any element in the study. They then chose (using opaque envelopes) the treatment code for each participant
Intervention model description
Randomized, triple-blind, sham-controlled, crossover
Eligibility
Sex/Gender
MALE
Age
18 Years to 35 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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 |
Countries
Belgium
Outcome results
None listed