OVERARM THROW PATTERN 1. Step forward 2. Pelvis/trunk forward 3. Pelvis rotates 4. Trunk rotates 5. Shld. protraction 6. Shld. Trans. Adduct 7. Shld. Medial.

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Presentation transcript:

OVERARM THROW PATTERN 1. Step forward 2. Pelvis/trunk forward 3. Pelvis rotates 4. Trunk rotates 5. Shld. protraction 6. Shld. Trans. Adduct 7. Shld. Medial rotate 8. Elbow extension 9. Forearm pronation 10. Wrist/Hand flexion

Step Forward with contra-lateral leg

Pelvis and Hip Rotation toward target

Trunk Rotation toward target

Transfer L to arm by reducing/stopping L in shoulders

Shoulder Protraction and Transverse Adduction

Shoulder Medial Rotation

Elbow Extension and Forearm Pronation

Motion Analysis 1. Segments involved 2. Movements involved 3. Sequence of movements 4. Muscles causing movements

General Principles Smaller/lighter projectiles allow a greater number of segments to contribute to the performance Smaller/lighter projectiles allow for a larger k Smaller/lighter projectiles allow the smaller segments to give greatest contribution [e.g. Shld. medial rotation + Forearm pronation] Larger/heavier projectiles get greatest contribution from larger segments

Performance Errors: Kinetic Link 1. Segmental Positioning 2. Sequence of Movements/Timing 3. Lack of Power/Strength