skill acquisition Flashcards
(37 cards)
types of motion
linear motion, angular motion, axis of rotation, general motion
anatomical positions
flextion, extension, abduction, adduction
what are biomechanics
the science concerned with the internal and external forces acting on the human body and effect produced by those forces
what do biomechanics aim to do
develop efficient techniques of motor skills, enhance performance, modify equipment designs to increase participation
what is kinematics
the area of biomechanics that studies the description of motion
what is linear motion
motion in a straight line
what is angular motion
motion of all parts of the object moving around a fixed point
what is axis of rotation
the fixed point around which an object rotates
what is general motion
the combination of linear and angular motion
what is projectile motion
when the body moves through the air
factors that affect the projectile motion
velocity of release, height of release, angle of release, shape, air resistance, spin
what is kinetics
the area of biomechanics that studies influence on the movement of the body
what is mass
the amount of matter that makes up an object
what is force
pushing or pulling effect of a body that can cause change
what is newtons first law of motion (inertia)
the body continues in its state of rest or state of motion unless acted upon force
what is newtons second law of motion
the rate of change of acceleration to body is proportional to force applied
what is newtons third law of motion
every action there is an equal and opposite reaction
what is centre of gravity
the objects centre of balance or centre of weight
what is stability
the bodys ability to remain in a state of balance
what are the principles of the application of biomechanical knowledge
provide valid reasons for observed effects, diagnose problems with technique, justify changes in technique
steps in biomechanical analysis
determine the objective of the skill, using observation, identifying movement patterns, divide the skill into skill phases, detecting errors, identifying starter mechanisms
what is a motor skill
an activity that involves voluntary muscular movement with the correct degree of muscular control to complete a reasonably complect predetermined task
what are sub routines
the order to perform a reasonably complex motor skill successfully, one needs to break down into components or parts
what are skilled movements
when all subroutines of a skill are performed in the correct sequence and with correct timing
