Modeling children's development in gross motor coordination reveals key modifiable determinants. An Allometric approach.
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AuthorsDos Santos, Marcos André M
Nevill, Alan M.
Ferreira Gomes, Thayse Natacha Q
Barnett, Lisa M
Maia, José António R
MetadataShow full item record
AbstractChildren change their body size, shape and gross motor coordination (GMC) as they grow. Further, GMC is expected to link to changes in children's body size, physical activity (PA) and physical fitness (PF). The objective was to model GMC changes in children followed longitudinally and to investigate associations between these changes and PA and PF levels. A total of 245 children (122 girls) were observed at 6 years of age and followed annually until 9 years. A sequence of allometric models were fitted, i.e.: 1. body mass, stature and PA; 2. addition of four PF tests; 3. addition of four more PF tests. In Model 1, changes in GMC are non-linear, and body mass (-0.60±0.07, p<0.001) and stature (2.91±0.35, p<0.001) parameter estimates were significant suggesting children with a more linear body size/shape showed higher GMC performances. Girls tend to outperform boys across time, and PA was not associated with GMC changes. Model 2 fitted the data better, and the PF tests (handgrip, standing long jump, 50-yard dash and shuttle-run) were significantly linked to GMC change. In Model 3, adding the remaining PF tests did not change the order of any factors importance. The greatest GMC changes were achieved by children whose body size/shape has an ectomorphic dominance across the years. Considering that leaner and physically fitter children tended to be more coordinated, physical education should also focus on PF development in components related to muscular strength, speed, agility and aerobic capacity, along with nutritional education to reduce fat mass.
CitationModeling children's development in gross motor coordination reveals key modifiable determinants. An Allometric approach. 2018 Scand J Med Sci Sports
JournalScandinavian journal of medicine & science in sports
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