Terminology Of Kinesiology Flashcards
What are the kinematic variables
Types of motion
Location of motion
Direction of motion
Quantity of motion
What types of motion are there
- Rotatory (angular)
- Translatory (linear)
Rotatory (angular) motion
Movement of an object or segment around a fixed axis
Translatory (linear) motion
Movement of an object or segment in a line
Open kinetic chain
The distal moves on the proximal
Closed kinetic chain movements
Proximal moves on the distal
Transverse plan
“X-coordinate”
Has a vertical/longitudinal axis
IR/ER and rotational movements occur in this plane in anatomical position
Frontal plane
“Y-coordinate”
Anterior to posterior axis
In the anatomical position abduction and adduction, later flexion occur
Sagittal plane
“Z-coordinate”
Coronal/medial lateral axis
In anatomical position flexion and extension occur
Force vectors
Point of application
Action line of direction
Spatial orientation
Magnitude
Point of application
Where the force is acting (shown by the base of the arrow)
Action line of direction
Point of the arrow
Spatial orientation
Shaft of the arrow
Magnitude
Length of the arrow
Compression force
Two surfaces together along the long axis
Demons by shortening and widening
Tension or distraction force
Two surfaces moving apart along long axis
Deforms by lengthening and narrowing
Bending
2-3 contact points around an external axis
Deforms: Compression on one side and tension of the other
Torsion
Twisting; forces in opposite directions around internal axis
Can be a combination of tension/compression and shearing forces
Deforms:
Shearing force
Loads applied in opposite directions parallel to surface of structure
Rug burn/tearing ACL
Friction
External force that is a resistance to movement
Kinesiology
study of human movement
kinematics
description of motion
Rectilinear motion
movement occurs in a straight line
Curvilinear motion
movement around a a curved line
ex: when walking the center of the head raises and lowers in a curvilinear way
quantity of motion
includes range of motion in degrees, angular velocity in degrees per second, and transltory motion (linear distances)
describe motion and the rule of threes
which segments (bones) are moving?
what is the direction of the motion
which joint is it occurring at
kinetics
study of the mechanics that describe the effect of forces on the body
application of forces to systems and the effect on the system
with groups of forces
