title: Emergence and stability of interlimb coordination patterns in children with developmental coordination disorder.
abstract: The purpose of this study was to investigate the emergence and stability of coordination patterns in children with developmental coordination disorder (DCD) when performing a rhythmic interlimb coordination task on rigid (floor) and elastic (mini-trampoline) surfaces. Twelve typically developing (TD) children and 12 children with DCD were required to clap while jumping under different conditions: in a chosen pattern - Free; when the feet touched the surface - Clapping-surface; when the body reached the maximum jumping height - Clapping-jump; and when the feet touched the surface and the body reached the maximum jumping height - Clapping-both. The results showed that the coordination pattern of children with DCD was more variable in the Free, Clapping-surface, and Clapping-jumping conditions and more variable on the mini-trampoline than on the floor under the Free condition when compared with the TD children. Clapping-jumping was more difficult to perform than Clapping-surface for both groups. These findings suggest that the children with DCD were less capable of rhythmically coordinating the jumping-clapping task because they used a type of exploratory strategy regarding the physical properties of the surfaces, whereas the TD children used a type of adaptive strategy displaying behavior that was more consistent across the tasks/environmental demands.
authors: Department of Physical Education, Bioscience Institute, Sao Paulo State University, Rio Claro, SP, Brazil. Electronic address: marcelaferracioli@gmail.com.
authors: Marcela
authors: M
authors: de Castro Ferracioli
authors: Department of Physical Education, Bioscience Institute, Sao Paulo State University, Rio Claro, SP, Brazil.
authors: Cynthia Yukiko
authors: CY
authors: Hiraga
authors: Department of Physical Education, Bioscience Institute, Sao Paulo State University, Rio Claro, SP, Brazil.
authors: Ana Maria
authors: AM
authors: Pellegrini
mesh_terms: D016022:Case-Control Studies; D002648:Child; D005121:Extremities / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D019957:Motor Skills Disorders / Q000503:physiopathology*
keywords: Constraints; DCD; Emergence of patterns; Interlimb coordination; Mini-trampoline