Ch.2 Flashcards
Performance outcome measures
A category of motor skill performance measures that indicate the outcome or results of performing a motor skill (e.g., how far a person walked, how fast a person ran a certain distance, ow many points a basketball player scored)
Performance Production Measures
A category of motor skill performance measures that indicates how the nervous, muscular, and skeletal systems function during the performance of a motor skill (limb kinematics, force, EEG, EMG, etc)
Reaction Time
The interval of time between the onset of a signal (stimulus) and the initiation of a response (e.g. the amount of time between the “go” signal for at swimming sprint race start and the swimmer’s first observable movement)
Movement Time
The interval of time between the initiation of a movement and the completion of the movement
Response Time
The time interval involving both reaction time and movement time; that is, the time from the onset of a signal (signal) to the completion of a response
Constant Error
The signed (+/-) deviation from the target or criterion; it represents amount and direction of error and serves as a measure of performance bias
Variable error
An error score representing the variability (or conversely, the consistency) of performance
Kinematics
The description of motion without regard to force or mass; it includes displacement, velocity, and acceleration
Displacement
A kinematic measure describing changes in the spatial positions of a limb or joint during a movement
Velocity
A kinematic measure describing the rate of change of an object’s position with respect to time. It is derived by dividing displacement by time (e.g., m/sec, km/hr)
Acceleration
A kinematic measure that describes change in velocity during movement; we derive it from velocity by dividing change in velocity by change in time
Kinetics
The study of the role of force as a cause of motion
