Kinesiology 3347A/B Lecture Notes - Lecture 9: Motor Coordination, Connectome, Spatial Cognition
10 Apr 2019
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Chapter 9 physical & cognitive development in middle childhood. Although they"re more difficult to observe, the physical changes of middle childhood are just as impressive as those of early childhood. Growth patterns = add 5-8 cm in height & 2. 75 kg in weight each year. Large muscle coordination = improvements allow for hand-eye coordination, strength, & speed. Fine motor coordination = improvements allow for better fine motor skills incl. writing, playing musical instruments, drawing, cutting. Girls are ahead of boys in their overall growth rate: by age 12, girls have achieved 94% of adult height; boys have achieved 84% Girls have more body fat & less muscle mass (boys are the opposite) D/t skeletal & muscular maturation : girls do better at movement activities requiring coordination (aren"t as strong, boys do better when strength & speed are involved (aren"t as coordinated) Steady increase in the myelinization of neurons across the cerebral cortex . Sensory & motor areas are affected 1st.
