chapter 8 Flashcards
kinesiology
science which investigates and analyses human motion.
importance of kinesiology
- helps in avoiding sports injuries
- helps in better and easy coaching
- helps in getting better result
- helpful in assessing the activity aptitude of the performer
biomechanics
study of the movements of living things using science of mechanics
importance of biomechanics
- assits in improving technnique
- helps in improving equipment
- facilitates performance in sports
- supports in preventing injury
- helps in promoting safety
six types of movements
gliding
angular
circumduction
rotation
supination
pronation
gliding movements
one surfaces gliding or moving over another without any angular or rotatory movement.
angular movement
angular movement occurs only between the Long bone
four types of angular movement
flexion
extension
abduction
adduction
flexion
bending parts at a joint so that the angle between them decreases and parts come closer together
extension
bending parts at a joint so that the angle between them increases and parts come farther apart.
abduction
moving a part away from the midline
adduction
moving a point towards midline
circumduction
movement which takes place between the head of a bone and its articular cavity
rotation
movement in which a bone moves around a central axis without undergoing any displacement from the axis.
suplination
movement in which a person turns his hand, wrist and forearm upward
pronation
movement in which a person turns his hand, wrist and forearm downward
axis
straight line around which an object rotates.
three types of axis
- sagittall
- frontal
- vertical
sagittall axis
passes horizontally from posterior to anterior
frontal axis
passes horizontally from left to right
vertical axis
passes vertically from inferior to superior
plane
flat surface passing through the body or organ.
three types of plane
- sagittall
- frontal
- vertical
sagittall plane
vertical plane passing from rear to the front, diving the body into left and right halves
