intro to kines Flashcards
week 1
what focuses on the forces that allow movement or are a barrier to movement?
kinetics
what addresses the type of movement?
kinematics
name the 3 cardinal planes of motion
frontal/coronal, sagital, transverse (horizontal)
axes of motion
anterior/post
medial/lat
sup/inf
when asking what is that angle or force, is associated with?
biomechanics
kinetics has to do with?
the enviroment, barriers around in which movement occur
an example of kinematics in ice skating
spinning
movements of our bones through ROM
osteokinematics
the motion occurs along or parallel to an axis same direction, distance, velocity, and time, straight line
translatory/linear/rectilinear motion
example of translatory motion
elevator (rectilinear) + in body sliding of carpal bones
example of curvilinear
basketball throwing
Movement that occurs in a circle around a point/axis
Points on the objects move at different speeds related to the distance from the axis
rotary or angular motion
most of body motion is
rotary and linear
example of rotary motion
rotation of wrist
what are degrees of freedom?
number of planes in which a joint moves, 3 degrees
one degree of freedom
one plane moving around an axis
examples of one degree of freedom
uniaxial, hinge (elbow) or pivot (radial joint)
two degrees of freedom
joint moves around two axes, and in two planes
examples of two degrees of freedom
biaxial, condyloid (MCP), ellipsoidal (radiocarpal joint), saddle (CMC) joint of thumb
example three degrees of freedom
triaxial, ball and socket, circumduction
3 types of joints
synarthrosis, amphiarthrosis, and diathrosis
synarthrosis
fibrous (radius and ulna), stability and shock absorption, very slight movement (skull)
amphiarthrosis
cartilaginous, stability w specific and limited mobility, limited (knees, spine)
diarthrosis
synoval joint w ligaments, mobilty based of DOF
(OTs work to increase stretch here)
synovial joints are elbow/knee/shoudler/hip!