Test 1 Ch. 2 The Measurement of Motor Performance Flashcards
performance outcome measures
indicates the outcome/result of performing a motor skill
- How far a person walks
- how fast a person ran a certain distance
performance production measures
indicates the performance of specific aspects of the motor control system during the performance of an action
- limb kinematics
- force
- EEG
Reaction Time
interval of time between the presentation of an unanticipated stimulus and the initiation of the response to that stimulus
- opponent change of direction
- object across path
Movement Time
the interval of time between the initiation of movement and the completion of the movement
Response time
time interval involving both reaction time and movement time
- time from “go signal” to the completion of a response
simple reaction time
one signal and 1 response
-starting a race in track
choice reaction time
when the situation involves more that one signal and each signal requires its own specific response
-traffic light.. red=stop, yellow=slow down, green= go
discrimination reaction time
situation involves more than one signal but only one response, which is only one of the signals; other signals require no response
- something gets in a joggers path and they need to step over it
Absolute Error
A measure of the MAGNITUDE of an error without regard to the direction of the deviation
Constant Error
represents the amount and DIRECTION of error and serves as a measure of performance bias
- what part of the target are we missing?
- missing right
variable error
an error score representing the variability/CONSISTENCY of performance
- how consistent are we missing right
kinetics
refers to the study of the role of force as cause of motion
Kinematics
refers to discriptors of motion w/o the regards of force or mass
- includes displacement, velocity, and acceleration
Displacement
describes the changes in the spatial position of a limb or joint during the time course of the movement
velocity
describes the rate of change of an objects position with respect to time.
- derived by dividing displacement by time
- m/sec, mi/hr
