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PPT Slide

    comparison of A. Agassi's

    first and second serves

    comparison of A. Agassi's

    first and second serves

    first and second serves

    first and second serves

    Kinematic Parameters

    First

    Serve

    Second

    Serve

    Ball Speed at the Moment of Impact [m/s]

    45.8+-2.2

    37.9+-2.4

    Directional Angle [degrees]

    17+-4

    10+-5

    Ball Position at the impact relative to the CG

    [m]

    Forward

    .13+-.02

    0+-.03

    Left Lateral

    .12+-.04

    .36+-.04

    CG Maximal Speed [m/s]

    1.89+-.1

    1.71+-.09

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