Abstract
BackgroundDown syndrome (DS) has unique physical, motor and cognitive characteristics. Despite cognitive and motor difficulties, there is a possibility of intervention based on the knowledge of motor learning. However, it is important to study the motor learning process in individuals with DS during a virtual reality task to justify the use of virtual reality to organize intervention programs. The aim of this study was to analyze the motor learning process in individuals with DS during a virtual reality task.MethodsA total of 40 individuals participated in this study, 20 of whom had DS (24 males and 8 females, mean age of 19 years, ranging between 14 and 30 yrs.) and 20 typically developing individuals (TD) who were matched by age and gender to the individuals with DS. To examine this issue, we used software that uses 3D images and reproduced a coincidence-timing task.ResultsThe results showed that all individuals improved performance in the virtual task, but the individuals with DS that started the task with worse performance showed higher difference from the beginning. Besides that, they were able to retain and transfer the performance with increase of speed of the task.ConclusionIndividuals with DS are able to learn movements from virtual tasks, even though the movement time was higher compared to the TD individuals. The results showed that individuals with DS who started with low performance improved coincidence- timing task with virtual objects, but were less accurate than typically developing individuals.Trial registrationClinicalTrials.gov Identifier: NCT02719600.
Highlights
Down syndrome (DS) has unique physical, motor and cognitive characteristics
The t-test found no statistical difference for age between groups of best movement time and worst movement time for both DS-group (18.4 ± 5; 20.5 ± 3, p = 0.154, respectively) and typically developing individuals (TD)-group (19.3 ± 4; 18.8 ± 4, p = 0.400, respectively)
A significant main effect for Group was found, F(1, 38) = 6.62, p = .014, ŋ2 = .15. It suggests that a difference in movement time between groups occurred, in other words DS-group had a much larger constant error (M = 193 ms) than TD-group (M = 6 ms) and in both groups the directional trend was late in movement
Summary
Down syndrome (DS) has unique physical, motor and cognitive characteristics. Despite cognitive and motor difficulties, there is a possibility of intervention based on the knowledge of motor learning. It is important to study the motor learning process in individuals with DS during a virtual reality task to justify the use of virtual reality to organize intervention programs. Bassin Anticipatory timing and the results showed that it is a good tool to evaluate improvement on motor performance in people with DS [7] but little was found on motor learning in a virtual reality task in individuals with DS [8]. It is important to verify the performance of DS individuals in a virtual task using a computer that can offer visual and auditory feedback and facilitate the use of a coincident timing assessment for rehabilitation professionals to predict the anticipatory timing. Virtual task with 3D images has been used in different devices and represent the future in technology promoting independence and functionality in the daily life tasks for individuals with DS
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