Influence of Transcranial Direct Current Stimulation on Cortical Plasticity in Concussed Athletes

NCT ID: NCT01593956

Last Updated: 2013-05-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-03-31

Brief Summary

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Concussed athlethes have discrete decreased abilities in motor learning. Recent research could further show, that cortical plasticity, as measured by transcranial magnetic stimulation (TMS) is reduced. This is possibly due to an increased GABAergic activity, what have been found in concussed athletes by paired pulse protocols in TMS.

GABAergic acitivty can be modulated by transcranial direct current stimulation (tDCS) in a polar-specific manner: anodal tDCS was able to decrease GABA, whereas cathodal tDCS increased tDCS.

Our study aimes to assess the influence of anodal tDCS on cortical plsticity in concussed athlethes. We hypothesize, that anodal tDCS is able to increase cortical plsticity in concussed athlethes.

Detailed Description

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Conditions

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Concussed Athletes Healthy Controls

Study Design

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Primary Study Purpose

TREATMENT

Study Groups

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Concussed athletes

Group Type OTHER

tDCS

Intervention Type BEHAVIORAL

Healthy controls

Group Type OTHER

tDCS

Intervention Type BEHAVIORAL

Interventions

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tDCS

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* history of at least 2 sports concussion
* age 18 - 50 years

Exclusion Criteria

* structural deficit on cerebral MRI
* Epilepsy
* neurological disorder
* intake of CNS-active drugs
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Charite University, Berlin, Germany

OTHER

Sponsor Role lead

Responsible Party

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Jonathan List

MD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Jonathan List, MD

Role: PRINCIPAL_INVESTIGATOR

Charité - Department of Neurology

Agnes Flöel, Prof.

Role: PRINCIPAL_INVESTIGATOR

Charité - Department of Neurology

Locations

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Charité - Department of neurology

Berlin, , Germany

Site Status RECRUITING

Countries

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Germany

Facility Contacts

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Jonathan List, MD

Role: primary

+40 30 450560223

Agnes Flöel, Prof.

Role: backup

+40 30 450660284

References

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De Beaumont L, Tremblay S, Poirier J, Lassonde M, Theoret H. Altered bidirectional plasticity and reduced implicit motor learning in concussed athletes. Cereb Cortex. 2012 Jan;22(1):112-21. doi: 10.1093/cercor/bhr096. Epub 2011 May 13.

Reference Type BACKGROUND
PMID: 21572090 (View on PubMed)

Stagg CJ, Bachtiar V, Johansen-Berg H. The role of GABA in human motor learning. Curr Biol. 2011 Mar 22;21(6):480-4. doi: 10.1016/j.cub.2011.01.069. Epub 2011 Mar 3.

Reference Type BACKGROUND
PMID: 21376596 (View on PubMed)

Stagg CJ, Best JG, Stephenson MC, O'Shea J, Wylezinska M, Kincses ZT, Morris PG, Matthews PM, Johansen-Berg H. Polarity-sensitive modulation of cortical neurotransmitters by transcranial stimulation. J Neurosci. 2009 Apr 22;29(16):5202-6. doi: 10.1523/JNEUROSCI.4432-08.2009.

Reference Type BACKGROUND
PMID: 19386916 (View on PubMed)

Other Identifiers

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EA1/021/12

Identifier Type: -

Identifier Source: org_study_id

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