![]() ![]() During the performance tasks, children complete a series of fine and gross motor tasks examining the domains “manual dexterity”, “balance”, and “aiming and catching”. MABC-2 comprises of performance tasks and a checklist. the Movement Assessment Battery for Children (MABC-2) 10. Motor skills in children aged 3–16 are usually assessed using clinical assessment batteries, e.g. Motor function distinction in children with ASD was associated with impairments in social, communicative, and behavioral skills, and thus, with the severity of ASD in general 2. Evidence of impairments in inter-hemispheric coordination (corpus callosum) and neurological soft signs such as dysdiadochokinesia in children with ASD without intellectual impairment point towards a general distinction of motor functions 6, 7, 8, 9. A meta-analysis found that 21–100% of children and adolescents with ASD display pronounced changes in motor behaviours 2. ![]() Since the neuroanatomical description of hypoplasia of the cerebellar vermal lobules of persons with ASD in 1988, there have been numerous endeavors to quantify motor functions 5. Specific motor signs in ASD were described as early as 1943 by Kanner, who observed motor “clumsiness” in children with ASD 4. However, there is scarce information available on motor functions in adults with ASD 3. Also, quantitative motor assessment via visual-perceptive computing may be a feasible instrument to detect subtle motor signs in ASD and perhaps suitable in the diagnosis of ASD in the future.īesides core symptoms of autism spectrum disorder (ASD), such as difficulties in social communication and interaction as well as restricted, repetitive patterns of behavior, interests, or activities, specific motor signs such as dyspraxia have been described in children and adolescents with ASD 1, 2. The data appear to reinforce knowledge about motor signs reported in children and adolescents with ASD. Adults with ASD seem to display a specific motor signature in this disorder affecting movement timing and aspects of balance. Furthermore, in the ASD group, some of these parameters correlated moderately to severity of ASD symptoms. Adults with ASD showed a greater mediolateral deviation while walking, greater sway during normal, tandem and single leg stance, a reduced walking speed and cadence, a greater arrhythmicity during jumping jack tasks and an impaired manual dexterity during finger tapping tasks ( p 0.48) compared to HC. Furthermore, the association between specific motor behaviour and severity of autistic symptoms (Autism Diagnostic Observation Schedule 2, Autism Spectrum Quotient) was explored. Anatomical models were quantified via custom-made software and resulting kinematic parameters were compared between individuals with ASD and HCs. 82 individuals (37 ASD and 45 healthy controls, HC) with an IQ > 85 and aged 18 to 65 years performed nine movement tasks and were filmed by a 3D-infrared camera. ![]() In this pilot study, we aim to quantitatively examine motor signature of adults with ASD without intellectual impairment using marker-less visual-perceptive motion capture. However, motor behavior in adults with ASD has scarcely been quantitatively characterized. ![]() Motor signs such as dyspraxia and abnormal gait are characteristic features of autism spectrum disorder (ASD). ![]()
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