Lecture 1: Intro to Kines Flashcards
Clinical Coordinate System
arbitrary point in the body and the body is in anatomical position
Sagittal Plane
medial and later axis penetrates sagittal plane, cuts body into left and right
motion rotates around M-L axis
Examples of Motion in Sag. plane
F/E- cervical region, shoulder
DF/PF of ankle (talocrural jt)
Frontal plane
anterior-posterior axis penetrates the frontal plane, cuts body front and back
motion rotates around A-P axis
Examples of motion in Frontal plane
Lat flexion- neck
ABD/ADD- shoulder
INV/EV- ankle (subtalar)
Radial/Ulnar deviation- wrist
Transverse Plane
vertical axis penetrates the transverse plane, cuts body upper and lower half
motion rotates around vertical axis
Examples of motion in transverse plane
transverse rotation- neck
IR/ER- shoulder
supination/pronation- elbow
ER/IR- hip
ABD/ADD- ankle
What is kinematics?
study of position change of the body without considering cause of position change
How many ways can a bone move in relation to another?
- linear (rare)
2. angularly- most jts
How many ways can an articular surface move?
- spin
- roll
- glide(slide)
Spin
a single point of a moving object rotates on a single point of stationary object
ex. radial head on capitulum
Slide
a single point on the moving object contacts multiple points on stationary object, a plane joint
Roll
multiple points on the moving object contact multiple points on stationary object
ex. humeral head rolling on glenoid fossa
Concave- Convex rule
concave moving on convex- concave segment rolls and glides in same direction (ex. open chain knee flexion)
convex on concave- convex segment rolls and slides in opposite directions (ex. closed chain squat)
What is kinetics?
study of how forces cause movement
