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ATTR 362: The Physics of Rehabilitation

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Kenneth Games

on 3 October 2014

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Transcript of ATTR 362: The Physics of Rehabilitation

The Physics
of Rehabilitation

You had better live your best and act your best and think your best today; for today is the sure preparation for tomorrow and all the other tomorrows that follow.
Harriet Martineau
A strength or energy that causes movement and has direction and magnitude
What are some examples of force?
Newton's Three Laws of Motion
First Law: Inertia
A body at rest stays at rest unless acted upon by an outside force.
Why is this important in rehab?
Second Law: Acceleration
F = M x A
Why is this important in rehab?
Third Law: Action/Reaction
An object reacts to a force with a force of equal magnitude in the opposite direction
Why is this important in rehab?
Center of Gravity
The point in the body or object around which its weight is balanced.
Non-Human Example
Human Examples?
Base of Support/Stability
What is the base of support?
An object is stable if the line of gravity falls within the base of support
Body Levers
First Class Lever
Favors both ROM and force production
Second Class Lever
Third Class Lever
Favors Force Production
Favors ROM
Come up with 2 examples of:
First Class Levers
Second Class Levers
Third Class Levers
*Rehab exercises*
Stress-Strain Curve
Stress-force that changes the form of a body
Strain-amount of change in the size or shape of the object caused by stress
Full transcript