Study Posture (Kinesiology Flash Cards

 
Pile Management Card
Posture (Kinesiology

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An anterior movement of the femur will cause what?
EXTENSION OF THE KNEE (AKA EXTENSION MOMENT)
What occurs when the LOG is posterior?
CAUSES POSTERIOR MOTION OF THE PROXIMAL SEGMENT.
What happens when the LOG is anterior?
THE PROXIMAL SEGMENT CAUSES AN ANTERIOR MOTION
The direction of the gravitional moment of force depends on what?
DEPENDS ON THE LOCATION OF THE GRAVITY LINE RELATIVE TO A PARTICULAR JOINT AXIS
What happens if the LOG doesn't fall through joint?
A GRAVITIONAL TORQUE IS CREATED
When does the magnitude of the gravitional moment foce increase?
INCREASES AS THE DISTANCE BETWEN THE LOG AND THE JOINT AXIS INCREASES
What happens if the LOG goes directly through a joint axis?
NO GRAVITIONAL TORQUE THEREFORE NO COUNTERFORCE IS NEEDED
The effect of forces on the body segments is determined by what?
THE LOCATION OF THE LOG RELATIVE TO THE AXIS OF MOTION OF BODY SEGMENTS
Is a resultant force having two components?
-VERTICAL
-HORIZONTAL
Whenever the body contacts the ground, the ground pushes back on the body. This is an example of which one of Newtons laws?
3RD LAW
GRF
GROUND REACTION FORCES
Where does the LOG fall during static standing?
WITHIN THE BOS
BOS
BASE OF SUPPORT

THE SPACE DEFINED BY THE TWO FEET
For equilibrium to be achieved, the sum of internal and external forces must be?
0
Describe internal forces?
PRODUCED BY MUSCLE ACTIVITY AND PASSIVE TENSION IN LIGAMENTS, JOINT CAPSULES AND OTHER SOFT TISSUE STRUCTURES
Gravity and ground reaction forces is an example of?
EXTERNAL FORCES
Forces can be?
INTRENAL/EXTERNAL
Any sudden change in conditions that displaces the body posture away from equilibrium?
PERTURBATION
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