mid term #1 Flashcards
(30 cards)
define motor control
theories that predict human movement
define motor development
the study of origins of change
define reflexive movement
involuntary controlled movements (early infancy) #1
define rudimentary movement
maturationally influenced movement abilities of an infant #2
define fundamental movements
the basic movement skills f childhood #3
specialized movement
aquiring complex skills of later childhood and beyond #4
define cognitive stage
cognitive effor required to focus on movement. high amount of error and variance #1
associative stage
associations between enviroment and movements are made fewer errors more consistance #2
autonomous stage
skill is almost automatic low variance, low errors, can detect their own errors #3
define knowledge of results
information of what happened movement outcome
knowledge of performance
knowing movement characteristics. elbow too high on shot
what are 6 characteristics of skill learning
- improvement
- consistency
- stability
- persistance
- adaptability
- reduction in attention demands
what are some characterisitcs of being an expert
faster decision making
domain specific
search enviroment faster
define biomechanics
focuses on the application of scentific principles of mechanics
define mechanics
the study of the state of rest or motion of bodies under the action of forces
kinematics
the study of motion
kinetics
the study of forces
define scalar
a quantity only has a magnitude
ex. mass, time, distance, speed
vector
a quantity that has a magnitude AND direction
ex. velo, acceleration, displacement, force
what is newtons first law
an object at rest stays at rest
newtons second law
F=MA
center of mass
the balance point of an objec. also the point an airborne object rotates around
base of support
area encompased by point of contact between the body and the ground
what can olny exist within the base of support?
center of pressure
