- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04426188
" Acute Brain Changes After Repetitive Headers in Soccer and the Effects of a Protective Device " (Soccer-BRAIN)
March 26, 2021 updated by: University Hospital, Bordeaux
" Brain Changes After Repetitive Head Impacts in Soccer and the Effects of a Protective Device: Biomechanical, Cognitive, Electrophysiological and Multimodal Neuroimaging Study "
Soccer, the most popular sport in the world, exposes players to repeated head impacts and concussions, due to contact with another player or with the ground.
Moreover, routine game-play in soccer involves intentional and repeated head impacts through ball "heading", with frequent high velocities, which might cause a transient brain dysfunction.
In this pre-post prospective interventional study, 22 soccer players will perform 10 headers from machine-projected soccer balls at standardized speeds, modelling routine soccer practice.
They will perform heading series in 2 different oral conditions, on different days at least 1 week apart: 1) Without mouthguard and tight jaws ; 2) With mouthguard and tight jaws.
The strength of the neck muscles will be measured before the heading series.
The kinematic of the movement will be recorded during each impact during the 2 heading series, as well as the activity of the jaw muscles which will be recorded by electromyogram.
Before and after each heading series, electrophysiological data, multimodal magnetic resonance imaging (MRI), and cognitive computerized assessment will be acquired
Study Overview
Status
Completed
Conditions
Study Type
Interventional
Enrollment (Actual)
21
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
-
Bordeaux, France, 33 076
- CHU de Bordeaux
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 25 years (Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
Male
Description
Inclusion Criteria:
Male 18 to 25 years, enrolled in French Social Security, recruited from the soccer teams of the University of Bordeaux
Exclusion Criteria:
- Abnormal neurological examination
- Taking drugs targeting the central nervous system
- Any unhealed injury
- History of head trauma, or other notion of central nervous system injury
- History of severe high blood pressure, diabetes, chronic cardiovascular pathology, progressive or debilitating disease
- Family history of epilepsy
- Contraindication to MRI: head circumference> 60 - Claustrophobia - Pacemaker, Implantable Neurostimulation, Implantable Defibrillator - Cochlear Implants - Ocular or cerebral ferromagnetic foreign body - refusal to be informed of an anomaly detected with MRI
- Individuals under legal protection or unable of giving their informed consent
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Non-Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Sham Comparator: Without mouthguard
Heading series without mouthguard from machine-projected soccer balls at standardized speeds
|
10 headers from machine-projected soccer balls at standardized speeds
Brain MRI before and after a series
Cognitive evaluation carried out with two computerized tools
Electrophysiological recording of Motor Evoked Potentials consisting of the application of transcranial magnetic stimulations (TMS) and the collection of muscle activity by electromyogram (EMG)
Measure of the strength of the neck muscles using a dynamometer
|
Experimental: With mouthguard
Heading series with mouthguard from machine-projected soccer balls at standardized speeds
|
10 headers from machine-projected soccer balls at standardized speeds
Brain MRI before and after a series
Cognitive evaluation carried out with two computerized tools
Electrophysiological recording of Motor Evoked Potentials consisting of the application of transcranial magnetic stimulations (TMS) and the collection of muscle activity by electromyogram (EMG)
Measure of the strength of the neck muscles using a dynamometer
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mean acceleration (m/s²)
Time Frame: Week 4
|
Mean linear and rotational acceleration of the head
|
Week 4
|
Mean acceleration (m/s²)
Time Frame: Week 6
|
Mean linear and rotational acceleration of the head
|
Week 6
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Period of cortical silence (milliseconds)
Time Frame: Week 4
|
Corticomotor inhibition measured in milliseconds using transcranial magnetic stimulation and electromyographic recordings.
|
Week 4
|
Period of cortical silence (milliseconds)
Time Frame: Week 6
|
Corticomotor inhibition measured in milliseconds using transcranial magnetic stimulation and electromyographic recordings.
|
Week 6
|
Normalized score
Time Frame: Week 4
|
Normalized score (Z-score) on the subtests of the computerized cognitive battery
|
Week 4
|
Normalized score
Time Frame: Week 6
|
Normalized score (Z-score) on the subtests of the computerized cognitive battery
|
Week 6
|
Average time
Time Frame: Week 4
|
Average time on the subtests of the computerized cognitive battery
|
Week 4
|
Average time
Time Frame: Week 6
|
Average time on the subtests of the computerized cognitive battery
|
Week 6
|
Mean strength ratio (Newton)
Time Frame: Week 4
|
Mean strength ratio between flexor and extensor muscles of the neck measured in Newton using a dynamometer
|
Week 4
|
Mean strength ratio (Newton)
Time Frame: Week 6
|
Mean strength ratio between flexor and extensor muscles of the neck measured in Newton using a dynamometer
|
Week 6
|
T-size measure
Time Frame: Week 4
|
Functional connectivity at rest in MRI
|
Week 4
|
T-size measure
Time Frame: Week 6
|
Functional connectivity at rest in MRI
|
Week 6
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Helene CASSOUDESALLE, University Hospital, Bordeaux
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
June 4, 2020
Primary Completion (Actual)
October 7, 2020
Study Completion (Actual)
January 15, 2021
Study Registration Dates
First Submitted
May 28, 2020
First Submitted That Met QC Criteria
June 9, 2020
First Posted (Actual)
June 11, 2020
Study Record Updates
Last Update Posted (Actual)
March 29, 2021
Last Update Submitted That Met QC Criteria
March 26, 2021
Last Verified
March 1, 2021
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CHUBX 2019/45
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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