bio mechanics of pushing

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    Biomechanics

    of Pushlike Pattern

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    Pushlike Mechanical Objectives

    Force activities Power activities

    Accuracy activities

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    Force Activities

    To manipulate a resistance Creating the highest possible velocity of object

    Associated with force production throughoutROM without regard to velocity of moving

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    Power Activities

    To generate maximum power Similar to force activities

    Produce great force to accelerate resistance ina limited amount of time Peak power occurs after peak force in time

    Peak velocity of body occurs after peak powerrecord

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    Power Activities

    There are 4 categories of activities : Jumping activities Takeoffs for aerial events Starts in events that moving body over a

    prescribed distance as fast as possible Continuous events with intermittent application of

    force

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    Accuracy Activities

    To maximize the accuracy of projection The Throw-Push Continum

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    The Throw-Push Continum

    Require blending of throw-push pattern into acombination

    Skill performs with sequential rotations onone end and performs with simultaneousrotations on the opposite end

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    The Throw-Push Continum

    Constraints that influence the location of skillon the continum

    Massiveness of object to be projected Size of object to be projected Shape of object Strength of performer Skill of performer

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    Simultaneous Segmental Rotation

    Pushlike pattern moves the point of contact inrectilinear path

    To control hand to move in straight line High-accuracy skill Govern performance of accuracy events

    Require precision in the direction of projection Guide object in an accurate path

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    Pushlike Characteristics

    Segments are positioned behind object to beprojected

    Segmental rotations occur silmultaneously otproduce high accuracy or force or both

    Object kept close to rectilinear path beforecontact or release

    Leverlike movements