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loco3 - Locomo*oncon*nued UprightLocomo*on Walking Walking...

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10/6/10 1 Locomo*on con*nued…. Upright Locomo*on Walking Walking: Phases of Gait Cycle Swing phase Begins when foot of one leg leaves support surface Ends when foot touches surface Support phase Time when balance is maintained on one foot Right foot in swing phase while leJ foot is in support phase Double support phase When both feet are in contact with the ground
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10/6/10 2 Walking Independent walking requires Sufficient balance control Matura*on of the CNS Leg strength; Increased muscle to fat ra*o (Body Changes) An Infant’s First Steps Ini*al walking paXerns in the infant are designed to foster equilibrium Sacrifice mobility for stability An Infant's First Steps Short, quick, rigid steps Toes point outward Use of wide base of support Flat‐footed contact with floor Arms in high‐guard posi*on Arms are rigid Arms are not swung freely in opposi*on to legs
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10/6/10 3 Wide B.O.S High Guard Posi*on Early Walking Characteris*cs As walking develops…. Step length: distance between consecu*ve steps Step width: lateral distance between steps Foot rota*on: intoeing/ ouXoeing Velocity: distance/*me Swing *me: % of gait cycle with one foot moving through the air Double support: % of gait cycle that both feet are on the floor
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