Term
define angular kinematics |
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Definition
mechanical descriptions of angular motions independent of mass |
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Term
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Definition
a rotary movement of an object about an axis of rotation in which all lines of the object move through the same angle during a given time period |
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Definition
the location of a line in a given angular reference system |
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what does angular displacement show |
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Definition
difference between angular positions |
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what do we care about in displacement? |
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Definition
beginnng and end position |
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what don't we care about in displacement |
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Definition
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how do we determine the direction of angular displacement |
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Definition
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how does the right hand rule work |
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Definition
right hand ulnar side shows x axis, palm faces in positive movement direction, thumb shows positive |
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Term
can you have a non-zero displacement at time 0? |
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Definition
no. at time 0, displacement = 0 |
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Term
can you have a non-zero position at time 0? |
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Definition
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can you have a non-zero angle at time 0 |
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Definition
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Term
how to calculate angular displacement |
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Definition
difference in angular coordinates between beginning and ending positions |
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Definition
the vector quantity that describes the rate of angular displacement with repsect tio time |
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Term
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Definition
the magnitude of angular velocity |
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how do we determine instantaneous angular velocity? |
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Definition
approximate the average angular velocity over a very short time period |
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Term
define angular acceleraation |
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Definition
vector that describes rate of change in angular velocity |
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Term
how to calculate average angular acceleration |
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Definition
change in angular speed or velocity divided by time |
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how to determine instantaneous acceleration |
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Definition
average acceleration during a short duration around a given time point |
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Term
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Definition
the angle between a segment line and a horizontal reference axis |
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Term
what are the 2 types of joint angles? |
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Definition
joint configuration angle, joint movement angle |
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Term
what is a joint configuration angle |
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Definition
the angle between 2 articulated segments |
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what is another name for joint configuration angle |
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Definition
segment inclination angle |
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what is the joint movement angle |
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Definition
the movement of the angle relative to anatomical position |
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Term
when is the hip joint angle positive |
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Definition
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when is the knee joint angle positive |
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Definition
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when is the hip joint angle negative |
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Definition
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when is the knee joint angle negative |
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Definition
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Term
when is the anke joint angle > 90 |
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Definition
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when is the ankle joint angle < 90 |
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Definition
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Term
which end is fixed in a closed kinetic chain |
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Definition
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where is the rotational axis in a closed kinetic chain |
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Definition
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what is the moving end in the closed kinetic chain |
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Definition
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what is the sum of the joint configuration angle and the joint movement angle? |
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Definition
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what is the rotation axis in the closed chain? |
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Definition
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what is the foot angle in the closed chain anatomical position |
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Definition
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what is the shank angle in the closed chain anatomical position |
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Definition
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what is the thigh angle in the closed chain anatomical position |
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Definition
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Term
which end is moving in the open kinetic chain |
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Definition
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Term
where is the reference line in the open kinetic chain |
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Definition
through the proximal end of the joint |
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Term
where is the moving line of the open kinetic chain |
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Definition
through the distal end of the joint |
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Term
WHICH ANGLE IS FIXED IN THE OPEN KINETIC CHAIN |
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Definition
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Term
EVERYTHING MOVES ABOUT WHAT JOINT in the open kinetic chain |
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Definition
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Term
when you are standing in the open kinetic chain, where is your rotation axis? |
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Definition
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