LAB Presentation - Figure Skating Single Axel JumpTake Off...

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Figure Skating Single Axel Jump- Take Off A Dynamic Analysis by: Megan Gueli & Erika Blankenship
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Introduction ± Single Axel take off of left leg forwards, do one and a half rotations, land on right leg backwards
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Introduction ± Common Sense: ± More Force = More Height ± More Height= More Time to Rotate ± More Time to Rotate = More Rotations Completed= ± More Impressive Jump ± Studies have been performed analyzing the knee, but in skating ankle joint + muscles are often overlooked ± Hypothesis: The Achilles Muscle does a significant amount of work, and should be better utilized by skaters and coaches alike. Yet, overuse is likely to cause inflammation, and injury.
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Assumptions ± Subject’s Mass =52 kg (based on previous labs) ± Subject’s Length of Foot =.2159 m (based on shoe size) ± I prox = 2.9 km*m^2, α = 16.5 rad/s^2, ay =.8367 m/s^2, ax=1.33 m/s^2 (Biomechanics in Sport Encyclopedia of Sports Medicine, 2000 ) ± Insertion angle of Achilles Tendon 13 degrees (previous lab) ± Angle of Ankle- 32 degrees (Arnold and Smith, 1993)
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LAB Presentation - Figure Skating Single Axel JumpTake Off...

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