Card Set Information
(Rotatry)Movment of an object about a fixed point
Straight line from one location to another
Plane Axis Action
Frontal Sagittal Abduction/Adduction
Transverse Vertical Rotations Int L/Ext R
Sagittal Frontal Flextion/Extension
Number of axis=
Number of degrees
Force arm is
Perpendicular distance from the axis to the point of application of force (Muscle attatchment)
Resistance arm is
Perpendicular distance from axis to the point of application of resistance.
Center of gravity
R X ra
F X fa
Classes of levers? Magnifies? Picture?
I.FAR- Balance, Magnify force, Magnify speed & ROM-Balance,Rock,Circus
II.ARF- Magnify force-Wheel barrel.
II.AFR- Magnify speed & ROM-Shovel.
Open Kinetic Chain
Distal segment of body is free
Closed kinetic chain
Distal segment of body is fixed(closed)