Postural Control Among Children with and Without Dyslexia

The Influence of Visual Information on Postural Control Among Children with and Without Dyslexia

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT05072418

Enrollment

Registered

2021-10-11

Start date

2020-12-26

Completion date

2022-07-31

Last updated

2024-09-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Child Development Disorder

Keywords

child with dyslexia, postural sway, visual perception

Brief summary

As Chinese-speaking children with dyslexia typically have different cerebellar sign behavior from non-Chinese-speaking counterparts, this study compared the effect of visual occlusion on the static balance between dyslexic and non-dyslexic children using the Chinese language.

Interventions

BEHAVIORALEye-opened and Eye-closed

The participants were instructed to perform six 60-second trials (2 conditions × 3 trials) of maintaining an upright stance on a force plate (Kistler Type 9260A, Switzerland) under the eyes open (EO) and eyes closed (EC) conditions. The order of EO and EC was alternated for each participant, and half of the subjects began with the EO (or EC) condition. For both conditions, the participants stood with their feet 1 cm apart on a force plate and their arms relaxed comfortably at their sides.

Study design

Observational model

CASE_CONTROL

Time perspective

RETROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

8 Years to 13 Years

Healthy volunteers

Yes

Inclusion criteria

* 1.Normal IQ(\>85, WISC-III) * 2.Children with dyslexia assessed by standard tools, performed by psychological-teachers of special education

Exclusion criteria

* 1.Attention deficit hyperactivity disorder(ADHD) * 2.Neurological or psychiatric abnormalities * 3.Developmental coordination disorder(DCD)

Design outcomes

Primary

Measure	Time frame	Description
Postural sway analysis	through study completion, an average of 1 year	Root mean squared sway amplitude and sample entropy along the AP and ML axes

Secondary

Measure	Time frame	Description
Stabilogram diffusion analysis of central of pressure	through study completion, an average of 1 year	Trajectories of central of pressure will be analyzed with stabilogram diffusion analysis to reveal behavior mechanisms for practice-related variations in feedback and feedforward process for error corrections

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026