Flashcards in Movement Analysis Deck (22):
A rigid bar that turns about an axis to create movement. All levers contain a fulcrum, load and effort.
The fixed point at which a lever turns or is supported. It can also be referred to as the 'axis'
The weight or 'resistance' that the lever must move.
The force required to move the load. It can also be referred to as 'force'
The distance from the load to the fulcrum
The distance from the effort to the fulcrum
Measures the efficiency of a lever. Calculated: effort arm divided by load arm
Increase in the angle of bones at a joint
Decrease in the angle of bones at a joint
Movement of a bone or limb away from the midline of the body
Movement of a bone or limb towards the midline of the body
Movement at the ankle joint that points the toes and increases the angle at the ankle joint
Movement at the ankle joint that flexes the foot upwards and decreases the angle at the ankle joint
A circular movement around a joint or, in other words, a movement around an axis
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.
Runs left to right and divides the body into front and back halves.
Divides the body in half horizontally
Runs forwards and backwards and divides the body into left and right halves
An imaginary straight line through the body around which it rotates. Three types of axis: sagittal, transverse and longitudinal.
Runs horizontally through the body from front to back, through the belly button
Runs horizontally through the body from left to right at the hips.