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Kin 340 Biomechanics- Chatper 2
Basic Kinematic Concepts
33
Other
Undergraduate 2
05/06/2012

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Term
Anatomical reference position
Definition
erect standing position with all body parts, including the Palms of the hands, facing forward :considered the standing position for the body segment movement.
Term
angular
Definition
involving rotation around a central line or point.
Term
antero-posterior axis
Definition
imaginary line around which the frontal plane rotations occur
Term
axis of rotation
Definition
imaginary line perpendicular to the plane of rotation and passing through the center of rotation
Term
cardinal planes
Definition
three imaginary perpendicular reference planes that divide the body in half by mass.
Term
curvilinear translation
Definition
along a curved line.
Term
frontal plane
Definition
plane in which lateral movements of the body and body segments occur.MOVEMENTS INCLUDE: ABDUCTION,ADDUCTION, LATERAL FLEXTION, ELEVATION, DEPRESSION, INVERSION, AND EXERSION, AND RADIAL AND ULNAR DEVIATION.
Term
general motion
Definition
motion involving translation and rotation simultaneously.
Term
linear
Definition
along a line that may be straight or curved, with all moving parts of the body moving in the same direction at the same speed.
Term
longitudinal axis
Definition
imaginary line around which transverse plane rotations occur
Term
mediolateral axis
Definition
imaginary line around which sagittal plane rotation occurs.
Term
sagittal plane
Definition
plane in which forward and backward movements of the body and body segments occur.MOVEMENT IN THIS PLANE ARE FLEXION, EXTENSION, AND HYPEREXTION, AS WELL AS DOSIFLEXION, AND PLANTAR FLEXION.
Term
system
Definition
mechanical system chosen by the analyst for study.
Term
translation
Definition
all body parts of the body travel exactly the same direction, the same distance and in the same time.
Term
transverse plane
Definition
plane in which horizontal body and body segment movements occur when the body in an erect standing position.MOVEMENTS ARE: LEFT AND RIGHT ROTATION,MEDIAL AND LATERAL ROTATIONS,SUPINATION,PRONATION, AND HORIZONTAL ADDUCTION AND HORIZONTAL ABDUCTION.
Term
rectilinear translation
Definition
along a straight line.
Term
extension
Definition
is defined as the movement that returns a body segment to anatomical from the position of flexion. Increase angle or come towards the mid-line of the body.
Term
flexion
Definition
includes anterior directed saggital plane rotations of the head,trunk,upper arm,forearm,hand,and hip and posteriorly directed sigittal plane rotation of the lower leg.
Term
hyperextension
Definition
is rotation beyond anatomical position in direction opposite direction of flexion.
Term
plantar flextion
Definition
top of the foot away from the tibia
Term
dorsiflexion
Definition
top of the foot toward the tibia
Term
ABduction
Definition
movement away from the midline
Term
ADDuaction
Definition
movement towards the mid-line
Term
elevation
Definition
upward movement
Term
depression
Definition
downward movement
Term
inversion
Definition
sole of the foot inward (medially)
Term
eversion
Definition
sole of the foot outward (laterally)
Term
medial rotation
Definition
rotation of a segment TOWARDS the mid-line
Term
lateral rotation
Definition
rotation of a segment AWAY from the mid-line.
Term
pronation
Definition
rotation of the forearm/hand TOWARDS the mid-line.
Term
supination
Definition
rotation of the forearm/hand AWAY from the mid-line.
Term
protraction
Definition
movement forward
Term
retraction
Definition
movement backward
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