Graphomotor Impairment Clinical Trial
Official title:
Differences in Muscle Activity Patterns and Graphical Product Quality in Children With Graphomotor Impairment Copying and Tracing Activities on Horizontal or Vertical Surfaces
Drawing on a vertical surface, rather than horizontal (such as blackboard) is often used by
occupational therapists as a way of developing fine motor control and visual motor
integration in children. In healthy children no difference in graphical quality was shown
between drawing on vertical or horizontal surfaces. However, this was not investigated in
children with graphomotor impairments.
The goal of this study is to determine whether movements produced on a vertical surface
differ in their performance level and muscle activation patterns compared to movements
produced on a horizontal surface. The investigators predict that there would be a difference
in the level of performance between the two surfaces.
Drawing on a vertical surface, such as a blackboard (rather than a horizontal surface) is
often used by occupational therapists as a way of developing fine motor control and visual
motor integration in children. While there is anecdotal evidence to support this
intervention, preliminary results in healthy children showed no differences in graphical
quality while drawing on vertical or horizontal surfaces. This however was not investigated
in children with graphomotor impairments.
The goal of this study is to determine whether movements produced on a vertical surface
differ in their performance level and muscle activation patterns compared to movements
produced on a horizontal surface.
The investigators predict that the level of performance on the vertical surface will exceed
the level of performance on the horizontal surface. Additionally, the investigators
hypothesize that the proximal muscles will be more activated and fatigued (in longer tasks)
while drawing on the vertical surface, while the distal muscle will be more activated and
fatigued while drawing on the horizontal surface.
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