Movement analysis Flashcards
Muhammed Al Clarkey
Define Lever
a rigid bar that turns about an axis to create movement. All levers contain a fulcrum, load and effort
Define Fulcrum
the fixed point at which a lever turns or is supported. It can also be referred to as the axis.
Define Load
the weight or ‘resistance’ that a lever must move.
Define Effort
the force required to move the load. It can also be referred to as the force
Define Load arm
the distance from the load to the fulcrum
Define Effort arm
the distance from the effort to the fulcrum
Define Mechanical advantage
(calculation)
measures the efficiency of a lever. It is calculated by effort arm divided by load (resistance) arm
Draw a liner version of a first class lever
(Use image online)
Fulcrum is in the middle
Draw a linear version of a second class lever
(Use image online)
Fulcrum - Load - Effort
Draw a linear version of a third class lever
(Use image online)
Load - Effort - Fulcrum
Examples of each lever
1st: See-saw, Line out throw
2nd: Wheelbarrow, Press-up
3rd: Bicep curl and Paddling a kayak
Define Plane
(Name the types)
(If unsure of any look up images online)
an imaginary line that splits the body in two and depicts the direction of movement. There are three types of plane: frontal, transverse and sagittal
Define Frontal Plane
runs left to right and divides the body into front and back halves
Define Transverse Plane
divides the body in half horizontally
Define Sagittal Plane
runs forwards and backwards and divides the body into left and right halves
Define axis
(Name the types)
(If unsure of any look up images online)
an imaginary straight line through the body around which it rotates. There are three types of axis: sagittal, transverse and longitudinal.
Define sagittal axis
runs horizontally through the body from front to back, through the belly button.
Define transverse axis
runs horizontally through the body from left to right at the hips
Define longitudinal axis
runs vertically through the body, from head to toe
