biomechanics of punting dan h. tony b. ashlie s
TRANSCRIPT
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Biomechanics of Punting
Dan H.Tony B.
Ashlie S.
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Skill Objectives To kick the ball downfield with maximum
height and distance
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Skill Phases1. Preparatory
2. Wind up3. Force producing movements
4. Follow through
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Preparatory movements Pt. I
Stance
Feet
Upper body
Knees
Arms
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Preparatory Skills Pt. II
Receiving the Ball
Hands
Ball positioning
Ball Grip
Hands
Elbows
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Preparatory Skills Pt. III
Ball Drop
Arm movement
Optimum ball positioning
Approach
2 or 3 step approach
Timing of approach
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Hands are faced in
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Wind Up Phase Pt. I Kicking leg
Hyperextension of the kicking leg
Knee: will be flexed
Planted leg
Knee
Foot positioning
Center of Gravity (COG)
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Wind Up Phase Pt. II
Upper Body
Head
Eyes
Upper spine
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Force Producing Movements Pt. I
Knee
Extension
Thigh
Flexes
Leg positioning
Straight line
Swing
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Force Producing Movements Pt. II
Ankle
Relative angle of the ankle
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Follow Through Stage Pt. I
Leg extension
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The full motion of Punting
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Muscle Action During Punting
Iliopsoas-flexes the hip
Rectus Femoris-flexes the hip
Sartorius-flexes the hip
Kicking knee
Hamstring-flexes the knee
Quad- extends the knee
Kicking ankle- Plantar flexed-gastrocnemius-soleus-flexor digitorum longus-flexor hallucis longus-tibialis posterior- peroneus longus-peroneus brevis
Standing ankle- Plantar flexors as above
Dorsi flexors-tibialis anterior-extensor hallucis longus-extensor digitorum longus
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Common Injuries Associated with Punting
Quad injuries are the most common
Quad is most likely to tear when the punting let makes contact with the ball
The ball transmits a retarding torque though the leg to the quad, tearing it
Potential of injury can be changed by manipulating the mechanics of the ball
Like decreasing the pressure of inflation.
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Sources Renner, B. (1997). Kicking the football: Skills and drills for
placekickers and punters. (pp. 67-117). Champaign IL: Human Kinetics.
Adrian, M., & Cooper, J. (1989). Biomechanics of human movement. (2nd ed., pp. 385-387). Dubuque IA: Wm. C.Brown Communications, Inc.
McGinnis, P. (2005). Biomechanics of sport and exercise. (2nd ed., pp. 322-326). Champaign IL.: Human Kinetics.
Murphy, A., Reilly, T., & Spinks, W. (2002). Science and football iv. (pp. 32-42). New York, New York: Routledge. Retrieved from http://books.google.com/books?hl=en&lr=&id=bChmAgAAQBAJ&oi=fnd&pg=PA32&dq=football punt mechanics&ots=OOdQvGIbHs&sig=3OYaQDbF_wtGKlgyb6M4WttV2sk#v=onepage&q=football%20punt%20mechanics&f=false