Unit 7 Flashcards
What are the 3 types of levers?
1st
2nd
3rd
What are the 3 components all needed in any lever?
Fulcrum
Effort
Load
What is the 1st class lever and a sporting example?
Load Effort
Fulcrum
E.g. sommersault
What is the 2nd class lever and give a sporting example?
Load
Fulcrum Effort
E.g. calf raise
What is the 3rd class lever and give a sporting example?
Load Effort
Fulcrum
E.g. lineout throw
What is the acronym to learn the 3 levers?
123
FLE
Define mechanical advantage?
Effort arm / Resistance arm
What is the short effort arm?
Rapid movement and large range
What is the short resistance arm?
Can move heavy resistance
What is the mechanical adv and disadv for a 1st class lever?
Large load can be lifted with little effort - slower movement
What is the mechanical adv and disadv for a 2nd class lever?
Large load can be lifted with little effort - slower movement
What is the mechanical adv and disadv for a 3rd class lever?
Fast movement - large effort needed to lift a relatively small load
What are the 3 planes?
Sagittal - separate left and right side
Frontal - separate front and back
Transverse - separate top and bottom
What are the 3 axis? (Think table football)
Sagittal axis - passes horizontally from front to back of body (front to back motion)
Transverse axis - passed horizontally from left to right of body (side to side motion)
Longitudinal axis - passes vertically from top of body to bottom, feet (spin on the spot motion)
Give a sporting example for each axis?
Sagittal - Cartwheel
Transverse - Front somersault
Longitudinal - pirouette in ballet
What are the pairs of planes and axis, with sporting examples?
Sagittal plane and transverse axis - Forward roll FLEXION AND EXTENSION
Frontal plane and Sagittal axis - Crucifix ABDUCTION AND ADDUCTION
Transverse plane and longitudinal axis - Hammer throw ROTATION
