The effects of VR-based multi-task sensorimotor intervention on motor performance in children with ADHD and DCD comorbidity

Attention-Deficit/Hyperactivity Disorder (ADHD) and Developmental Coordination Disorder (DCD) are two prevalent neurodevelopmental disorders among children. Both of these diseases, occurring independently or in combination, can result in significant motor skill deficits. The purpose of this study was to observe the improvement in motor performance and skill acquisition of children with ADHD + DCD in comparison with their peers with ADHD or DCD, through repeated practice in the MTSI game. A total of 139 children (37 ADHD, 33 ADHD + DCD, 34 DCD, 35 TD: Typically Developing) participated in the MTSI (Multi-task Sensorimotor Intervention), which involved five sensorimotor intervention tasks. The change of motor performance scores provided by the MTSI system was assessed with repeated measurements, and the skill acquisition in gross & fine motor skills before and after intervention was analyzed with a mixed-design repeated measures ANOVA with post hoc analysis. All groups of children demonstrated a significant increase in motor performance during repeated practice in MTSI and displayed great improvements in gross and fine motor skills, with ADHD + DCD children benefiting more in the magnitude. Multi-task sensorimotor intervention (MTSI) can effectively improve gross and fine motor skills for children with ADHD or DCD, and particularly for those with ADHD and DCD comorbidity, with tailored, multidimensional intervention strategies.