Kinesiology 3347A/B Lecture Notes - Lecture 9: Grip Strength, Fine Motor Skill, Tennis Ball
31 Mar 2017
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Growth and development chapter 9: development of manipulative. Prehension: the grasping of an object typically with the hand(s) Study: halverson proposed phases of grasping development in 1931. Infants transition from power to precision grips over time = fine motor skill development. 4 months = grasp w/ thumb on top ex) joystick type grip. 5 months = grasp w/ fingers only more fine skills. = relatively rapid development to grasp things in the first 5 months. Q: what systems would be changing to inform this rapid development: nervous system, muscular system, visual system. By 9 months, infants shape hand to anticipate/match object as they reach. W/ a change in the object shape, they weren"t able to see the same type of development as halverson saw. There was a sort of stunted development when you had to shape your own hand to the shape, infants don"t develop this system as quickly. Not until 9 months until it is developed.
