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PED 246: Methods and Techniques of Dance and Gymnastics

PED 246: Methods and Techniques of Dance and Gymnastics. Chapter 2 Biomechanics. Center of Gravity. That point at which stability may occur Weight is in the center of the body The closer the center of gravity is to Base – more support Radius of rotation – faster the movement.

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PED 246: Methods and Techniques of Dance and Gymnastics

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  1. PED 246: Methods and Techniques of Dance and Gymnastics Chapter 2 Biomechanics

  2. Center of Gravity • That point at which stability may occur • Weight is in the center of the body • The closer the center of gravity is to • Base – more support • Radius of rotation – faster the movement

  3. Base of support • Body part or parts that support the body weight and the space between those body parts • Feet when standing • Arms in handstand • Butt when sitting

  4. Motion • an observable change in position of the entire body or its parts • Sustained • Percussive • Translatory • Rotatory • Curvilinear

  5. Sustained Motion • Slow movement • Stretches

  6. Percussive Motion • Quick or rapid movement • Kick or punch

  7. Translatory Motion • Movement through a continuing plane • Ski jumper • Sitting in moving car

  8. Rotatory Motion • Movement about or around a central point • Spin on parallel bars • Longitudinal axis (right and left) • Transverse axis (top and bottom) • Sagittal axis (Front and back)

  9. Curvilinear Motion • Movement as a whole in a circular path • Somersault while in straight position

  10. Axis • A line through the center of gravity around which rotation occurs

  11. Force • An influence that produces or tends to produce motion or a change of motion • Muscular • Frictional • Gravitational

  12. Friction • The resistance of one surface to that of another • Contact with another surface slows down the movement

  13. Gravity • The force of attraction that tends to pull bodies or weight downward toward the Earth’s center • Always downwards

  14. Newton's Laws of motion • General principles governing the movement of objects through space • Inertia • Acceleration • Action - Reaction

  15. Inertia • Properties remaining at rest or in motion unless acted upon by an outside force. • Push to start • Friction to stop

  16. Acceleration • Resulting change in speed is directly proportional to the force producing it and inversely proportional to the mass • The tighter the tuck, the faster the spin.

  17. Action - Reaction • For every action there is an equal and opposite reaction • Curling stones hit • Transfer of motion from one to another

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