Unit 2 - Movement Analysis Flashcards
Define Lever
A rigid bar that rotates around a fulcrum to apply force to a load (resistance)
Define Fulcrum
A point/ pivot around which a lever rotates
What are the four main sections of a lever system?
Lever
Fulcrum
Load
Effort
Describe a first class lever?
The fulcrum is between the load and effort
Load-Fulcrum-Effort
Describe a secod class lever?
The load is between the effort and fulcrum
Fulcrum-Load-Effort
Describe a third class lever
The effort is between the load and the fulcrum
Fulcrum-Effort-Load
How is a fulcrum represented in a diagram?
Triangle
How is a load represented in a diagram?
Square
How is a effort represented in a diagram?
Arrow
Give an example of a first class lever in sport
Attacking header in football
Extension at the elbow when throwing
Give an example of a second class lever in sport
Calf Raises
Jumps
Give an example of a third class lever in sport
Bicep Curl
Most other extensions (except elbow and plantar)
What plane and axis allow cartwheels?
Frontal Plane
Sagittal Axis
What plane and axis allow spins or pirouettes?
Transverse Plane
Longitudinal Axis
What plane and axis allow somersaults?
Sagittal Plane
Transverse Axis
Which axis pairs with the frontal plane?
Sagittal Axis
Which axis pairs with the transverse plane?
Longitudinal Axis
Which axis pairs with the sagittal plane?
Transverse Axis
Which plane pairs with the sagittal axis?
Frontal Plane
Which plane pairs with the longitudinal axis?
Transverse Plane
Which plane pairs with the transverse axis?
Sagittal Plane
What movements are possible on the sagittal plane and about the transverse axis?
Flexion
Extension
What movements are possible on the frontal plane and about the sagittal axis?
Abduction
Adduction
What movements are possible on the transverse plane and about the longitudinal axis?
Rotation
Twisting
