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Trial registered on ANZCTR
Registration number
ACTRN12620001137987
Ethics application status
Approved
Date submitted
19/08/2020
Date registered
2/11/2020
Date last updated
6/04/2022
Date data sharing statement initially provided
2/11/2020
Date results information initially provided
6/04/2022
Type of registration
Prospectively registered
Titles & IDs
Public title
Posterior Cervical Spine Muscle Vibration and Oculomotor Function in Young Adults with Mild Traumatic Brain Injury (mTBI).
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Scientific title
Oculomotor Function after Posterior Cervical Spine Muscle Vibration in Young Adults with Mild Traumatic Brain Injury
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Secondary ID [1]
302080
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U1111-1233-0051
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Universal Trial Number (UTN)
U1111-1233-0051
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Trial acronym
CVOmMTBI
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Mild Traumatic Brain Injury
318688
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Cervical spine dysfunction
318689
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Condition category
Condition code
Neurological
316699
316699
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0
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Other neurological disorders
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Injuries and Accidents
316700
316700
0
0
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Other injuries and accidents
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Musculoskeletal
316701
316701
0
0
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Other muscular and skeletal disorders
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Each participant will undergo a single session of five minutes of 100hz vibration on the posterior upper cervical spinal muscles. The Vibration will be delivered by a cross-shaped unit Myovolt unit (https://myovolt.com/wearable-sports-recovery-technology) held in place with a velcro strap around the head. The intervention requires no specialist knowledge to apply and will be administered by the research assistant.
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Intervention code [1]
318378
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Rehabilitation
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Comparator / control treatment
Healthy young adults will receive the same intervention administered by the research assistant
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Control group
Active
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Outcomes
Primary outcome [1]
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Composite primary outcome - Oculomotor: saccades, anti-saccades, fixations, smooth pursuits, pupillary dynamics, optokinetic reflex, multisensory integration and egocentric localisation using the Tobii eye tracker - a computerised measure of eye movements. All oculomotor outcomes are recorded by the Tobii eye tracker in XML document format.
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Assessment method [1]
324830
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Timepoint [1]
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immediately before and immediately after the intervention
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Secondary outcome [1]
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Cervical spine flexion-relaxation ratio - measured using surface electromyography of the muscles of the posterior cervical spine. Two electrodes are placed in the lower and upper cervical spine and the participant is asked the flex their head forward fully then return their head to a neutral position. Surface electromyography recordings are taken of muscle activity in this procedure and stored electronically. The recordings will be taken by the research assistant.
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Assessment method [1]
387574
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Timepoint [1]
387574
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Directly pre intervention only
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Eligibility
Key inclusion criteria
20 Young adults with no history of mild traumatic brain injury (mTBI) and normal or corrected to normal vision
20 Young adults with mild traumatic brain injury (mTBI) and normal or corrected to normal vision
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Minimum age
18
Years
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Maximum age
35
Years
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Sex
Both males and females
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Can healthy volunteers participate?
Yes
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Key exclusion criteria
Any conditions that are known to affect eye-movements, such as Attention Deficit Hyperactivity Disorder (ADHD), stroke or cranial nerve palsy or vision loss in one or both eyes that is not corrected to normal via glasses or contact lenses.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
Sample size calculations showed the need for a minimum number of 17 subjects per group (ß = 0.95, a = 0.05, effect size of 0.6). To allow for a relative uncertainty about the expected effect sizes, we aim to enrol a maximum of 40 participants in this trial.
Descriptive statistics such as unadjusted means, standard deviations, and counts will be used to describe the baseline characteristics of the two groups. Mixed models for repeated measures method will be used to analyse the effect of vibration on the change scores recorded pre and post intervention for the primary outcomes.
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/12/2020
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Actual
13/04/2021
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Date of last participant enrolment
Anticipated
4/01/2021
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Actual
1/08/2021
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Date of last data collection
Anticipated
4/01/2021
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Actual
31/08/2021
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Sample size
Target
40
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Accrual to date
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Final
40
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Recruitment outside Australia
Country [1]
22864
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New Zealand
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State/province [1]
22864
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Auckland
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Funding & Sponsors
Funding source category [1]
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University
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Name [1]
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University of Auckland
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Address [1]
306499
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85 Park Road, Grafton, Auckland 1023
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Country [1]
306499
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New Zealand
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Primary sponsor type
University
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Name
University of Auckland
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Address
School of Optometry and Vision Science, 85 Park Road, Grafton, Auckland 1023
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Country
New Zealand
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Secondary sponsor category [1]
307026
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Individual
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Name [1]
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Dr Kelly Jones
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Address [1]
307026
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Faculty of Health & Environmental Sciences
National Institute for Stroke and Applied Neurosciences
AUT University
Private Bag 92006
Auckland 1142
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Country [1]
307026
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New Zealand
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
306704
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Health and Disability Ethics Committee New Zealand
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Ethics committee address [1]
306704
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Ministry of Health
Health and Disability Ethics Committees
PO Box 5013
Wellington 6140
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Ethics committee country [1]
306704
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New Zealand
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Date submitted for ethics approval [1]
306704
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21/05/2019
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Approval date [1]
306704
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21/08/2019
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Ethics approval number [1]
306704
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19/CEN/130
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Summary
Brief summary
This study utilises the eye tracking tests for testing eye movements in participants with a history of mTBI before and after vibration stimulation to the neck. These results will be compared to eye tracking tests in healthy participants with no history of mTBI. The vibration stimuli will test the hypothesis that aberrant sensory information from the neck (the vibration stimuli) affects eye movements.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Dr Phil Turnbull
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Address
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The University of Auckland, School of VOptometry and Vision Science, 85 Park Road, Grafton, Auckland 1023
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Country
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New Zealand
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Phone
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+64 9 373 7599
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Ms Alice Cade
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Address
104731
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The University of Auckland, School of VOptometry and Vision Science, 85 Park Road, Grafton, Auckland 1023
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Country
104731
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New Zealand
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Phone
104731
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+64 21 400 739
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Fax
104731
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Email
104731
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[email protected]
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Contact person for scientific queries
Name
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Ms Alice Cade
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Address
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The University of Auckland, School of VOptometry and Vision Science, 85 Park Road, Grafton, Auckland 1023
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Country
104732
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New Zealand
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Phone
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+64 21 400 739
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Fax
104732
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Email
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
Yes
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What data in particular will be shared?
individual participant data of primary and secondary outcomes only
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When will data be available (start and end dates)?
Start date: 10/01/2021
End date: 10/01/2027
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Available to whom?
Public
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Available for what types of analyses?
Reproducing similar studies
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How or where can data be obtained?
emailing the principal investigator:
[email protected]
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
Current Study Results
No documents have been uploaded by study researchers.
Update to Study Results
Doc. No.
Type
Is Peer Reviewed?
DOI
Citations or Other Details
Attachment
3882
Basic results
No
380418-(Uploaded-10-01-2023-12-40-00)-Basic results summary.docx
4152
Plain language summary
No
Mild traumatic brain injury (mTBI) is a common and...
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