Developmental Coordination Disorder
Conditions
Keywords
Developmental coordination disorder, Postural balance, Transcranial Direct Current Stimulation, Children, Child Development
Brief summary
This study investigates the effects of Transcranial Direct Current Stimulation (tDCS) on postural control of children with Developmental Coordination Disorder (DCD). All participants will receive four conditions of stimulation, in a crossover protocol: cerebellar anodic, cerebellar cathodic, primary motor cortex anodic (M1) or sham tDCS.
Detailed description
Developmental Coordination Disorder (DCD) is a highly frequent neurodevelopmental disorder with negative impacts on children's motor repertoire, quality of life and general health. One of the main problems faced is the balance deficit, which although well characterized in this population, little is known about the etiological core of this impairment. The cerebellum appears to be a functionally impaired structure in DCD, but frontal motor areas are also involved. Transcranial Direct Current Stimulation (tDCS) is a noninvasive way of inducing local-specific polarity-dependent synaptic modulation. Cerebellar tDCS (CE-tDCS) is even more recent, with still unclear results on its effects on postural balance, with only one study in children, which requires us to better understand the type of stimulation necessary to induce balance improvement in children with DCD. Thus, the investigators aimed to verify the effects of anodal tDCS over primary motor cortex (M1-atDCS) and CE-tDCS (anodic, cathodic and sham) on the balance of children with DCD, compared to children without DCD. METHODS: Fifteen children with DCD (total MABC-2 and balance \<15%, with DCDQ positive / TL positive) and 15 children without DCD (MABC-2 total and balance ≥50% and DCDQ negative) will be assessed by platform stabilometry (PS) before and after receiving M1, cerebellar anodic, cerebellar cathodic, primary motor cortex anodic (M1) or sham tDCS (crossover). They will be evaluated under conditions without proprioceptive manipulation (direct on PS) with open and closed eyes, and with proprioceptive manipulation (on foam surface) with open and closed eyes.
Interventions
DEVICETranscranial direct current stimulation (tDCS)
Transcranial direct current stimulation is a noninvasive technique of neuronal modulation that has been used in different neurological conditions, including children with cerebral palsy.
Sponsors
University of Sao Paulo General Hospital
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
BASIC_SCIENCE
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
7 Years to 11 Years
Healthy volunteers
Yes
Inclusion criteria
* children of both sex, aged between seven years 0 months and 10 years and 11 months; * Assent of the child by the Term of Assent and acceptance of parents and / or guardians to participate in the study by signing the Free and Informed Consent Form; * Children with DCD indicative according to DSM-5 presenting Percentile \<15 in the MABC-2 Motor Evaluation Battery and in the balance domain; and the score indicated for each age by the Developmental Coordination Disorder Questionnaire DCDQ-Brazil (TDC Group). * Children without DCD presenting Percentile ≥ 50 in the total score and in the MABC-2 Motor Assessment Battery Balance domain, without indicative by DCDQ (Control Group - GC). * Absence of intellectual disability considering performance above the 25th percentile on the RAVEN Color Progressive Matrix scale * Absence of visual or auditory deficiencies; cardiopathies; rheumatic or orthopedic dysfunctions; neurological or psychiatric problems (except ADHD and language disorder because they are the most comorbid disorders with DCD).
Exclusion criteria
• Signs of excessive discomfort during or after any procedures or sessions involved in the research.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change from COP - AP axis | Baseline and Post-tDCS (immediately after tDCS) | Postural instability will be evaluated using a force plate to record center of pressure displacement (COP) in antero-posterior (AP) axis in centimeters |
| Change from COP - ML axis | Baseline and Post-tDCS (immediately after tDCS) | Postural instability will be evaluated using a force plate to record center of pressure displacement (COP) in Mediolateral (ML) axis in centimeters |
| Change from COP - area | Baseline and Post-tDCS (immediately after tDCS) | Postural instability will be evaluated using a force plate to record center of pressure displacement (COP) area (cm²) |
Other
| Measure | Time frame | Description |
|---|---|---|
| Adverse effects | Immediately after tDCS | Adverse effects will be evaluated using structured questionnaire. Active collection uses a questionnaire with records of the duration (minutes or hours) and intensity (Numerical Rating Scale 0-10) of adverse symptoms reported by the patient. Complaints: Headache Scalp pain Tingling Itching Redness Burning sensations Sleepiness Trouble concentrating Nausea Mood change |
Countries
Brazil
Outcome results
None listed