Kinesiology 3347A/B Lecture Notes - Lecture 7: Anatomical Terms Of Motion, Right Angle, Gluteus Maximus Muscle
21 Apr 2016
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Definition: the act or capability of moving from place to place. Moving on one, two, or four limbs: crawling, walking, running, hopping, skipping, etc. Certain motor milestones must first be achieved (like the ability to lift the head) Crawling ( army crawl ): moving on hands and abdomen. Progression: crawling chest & stomach on floor, low creep stomach slightly elevated, rock back & forth in high creep position, creeping with arms and legs working alternately. The environment must still afford the infant certain things: a continuous path, flat surface, sufficient friction for balance. Walking is the first form of upright, bipedal locomotion. Walking is defined by: 50/50 phasing between right & left legs, period of double support (both feet on the ground) followed by period of single support) The complete gait cycle: stance and swing: stance phase (50% of gait cycle): heel strike, foot flat, mid-stance, push-off, swing phase (40% of gait cycle): acceleration, mid-swing, deceleration.
