Clinical Research Directory

Developmental Coordination Disorder

Developmental Coordination Disorder (DCD) corresponds to a clumsiness, a slowness and an inaccuracy of motor performance. This neurodevelopmental disorder affects 6% of school-aged children, and disturbs daily life activities and academic performances. The etiology of DCD is still unknown. An understanding of this disorder is necessary to improve interventions and therefore quality of life of these people. A deficit of the so-called internal models is the most commonly described hypothesis of DCD. Indeed, children with DCD exhibit difficulties in predictive control. Internal models, useful for motor control, are closely related to the sensory system, as they are elaborated on and constantly fed by sensory feedback. Deficits in sensory performance are described in DCD, mostly in the visual system, which could in turn partly explain poor motor performance. However, visuo-perceptual deficits cannot explain the entire motor difficulties because some activities in daily life, as buttoning a shirt, are often performed without visual control. Although the integrity of proprioceptive and tactile systems is necessary for the building of internal models, and therefore for a stable motor control, these sensory systems have been very little investigated in DCD. Moreover, using a tool is often disturbed in children with DCD. In neurotypical subjects, tool use induces a plasticity of body representation, as reflected by modifications of movement kinematics after tool use. Proprioceptive abilities are necessary for this update of the body schema. Thus, potential deficits of the proprioceptive system in children with DCD could impair the plastic modification of the body schema, and hence of motor performance, when using a tool. The aim of this study is to identify the main cause of the DCD, both by evaluating the tactile and proprioceptive abilities and by assessing the body schema updating abilities in children with DCD. While some daily life activities improve with age, some motor difficulties persist in adults with DCD. To our knowledge, perceptual abilities have never been investigated in adults with DCD and it is thus unknown whether perceptual deficits are still present in adulthood. This information could allow us to understand if motor difficulties in adult DCD are caused by enduring perceptual deficits and/or impaired plasticity of body schema. The second aim of this study is to evaluate abilities of perception and of body schema plasticity in adults with DCD.

Motor Development and Early Predictors of Psychomotor Outcomes in Preterm and Term Infants Assessed by MOS-R and Caregiver Questionnaire at 18 and 36 Months

This study examines how early motor behavior in infants relates to their later psychomotor development. Researchers will observe both preterm and full-term infants during the first months of life, using video-based assessments to evaluate spontaneous movements and early postural control. These early motor patterns will be scored with the Motor Optimality Score - Revised (MOS-R). When the children reach 18 and 36 months of age, their development in areas such as motor skills, communication, sensory processing, and social behavior will be evaluated through a caregiver-completed questionnaire. The purpose of the study is to determine whether early motor quality can predict later developmental outcomes, whether preterm and full-term infants with similar motor scores develop differently, and whether early therapy may improve outcomes for infants with low MOS-R results.

Grand Valley State University (GVSU) Skills on Wheels

Manual wheelchairs (MWCs) are widely used by children with physical disabilities, yet many of these children are unable to use their wheelchair independently. Instead, they depend on others to push them. This dependency results in limited opportunities to decide what they want to do and where they want to go, leading to learned helplessness, social isolation, decreased participation, and restricted involvement in physical activities. Furthermore, unsafe MWC use increases the risk of injury, as highlighted by the 44,300 children treated each year in emergency departments for MWC-related injuries. While independent MWC mobility can positively influence quality of life, MWC skills training must also be provided to promote safe, independent MWC use. The effectiveness of MWC training programs for adults is well established, yet the current standard-of-care does not include MWC skills training for children and research regarding the efficacy of pediatric MWC skills training programs is limited. Skills on Wheels seeks to address these gaps and provide pilot data for a future large-scale, multi-site research project involving a randomized controlled trial. Aim 1 is to explore the influence of Skills on Wheels on children's MWC skills and confidence in their MWC use. Aim 2 is to investigate the influence of Skills on Wheels on children's psychosocial skills, social participation, and adaptive behavior.

Program Intensive Habilitation (PIH) for Young Children With Early Brain Damage

By longitudinal, prospective research in children with neurodisabilities including severe motor impairments and their parents to explore the beneficial effects of participating in an intensive habilitation program on the child's adaptive functioning and parental empowerment in order to treat and reduce the consequences of early brain damage.