LAB Presentation Final - Figure Skating Single Axel...

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Figure Skating Single Axel Jump- Take Off A Dynamic Analysis by: Megan Gueli & Erika Blankenship
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Our Movie…
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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 Tendon does a significant amount of work, and should be better utilized by skaters and coaches alike.
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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° (previous lab) Angle of GRF = 32° (King et. al, 1993)
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Methods Subject  Elite Figure Skater, Senior National and International Competitor Took Video of Single Axel
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