unit 3 Flashcards

1
Q

what are movement skills

A

activities or tasks that require voluntary head and body movement to achieve a goal (movement with purpose)

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2
Q

fundamental movement skills

A

the basics of sports- specific movement skills
e.g throw, jump

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3
Q

what are the 3 ways to classify a skill/ type of movement

A
  • discreate motor skills
  • serial motor skills
  • continuous motor skills
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4
Q

what are and explain the types of movement

A

-discreate motor skill; obvious beginning and end (e.g throwing a ball)
-serial combo of discreate skills in a single sequence
(running, weight lifting)
-continuous- have no definite beginning or end point (running)

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5
Q

movement precision

A

fine - skills that involve the recruitment of smaller muscle groups (bouncing a ball)
gross- skills that involve recruitment of larger muscle groups( running)

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6
Q

predictability of the environment

A

closed motor skill
open motor skill; less predictable environment

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7
Q

stages of learning

A

cognitive
associative
autonomous

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8
Q

characteristics of cognitive learning

A

(beginner)
- learner makes many errors
-asks alot of questions
- performance is inconsistent and rigid
- learns by trial and error

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9
Q

characteristics of assosiative learning

A
  • novice
    -begin to refine technique
  • more consistent fewer errors
  • (coach tip)help dev self correcting ability
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10
Q

characteristics of autonomous learning

A

expert
- skill is largely automatic
-no longer thinking how to do the skill
-coach tip precise feedback

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11
Q

what are the types of practice

A

part vs whole practice
practice distribution- mass vs distributed
practice variability

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12
Q

how to choose part vs whole practice

A

task complexity- simple tasks should be kept whole (throw dart)
- the more complex can be broken up (tennis serve)

task org- skills that require a rhythm are harder to break into segments and need to be practiced whole eg cartwheel

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13
Q

benefit of part vs whole practice

A
  • understand each component/lower cognitive load
  • build confidence- so doing whole skill is less intimidating
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14
Q

massed vs distributed practice

A
  • refers to frequency and length of training session/activity

-mass
- less frequent
-last longer
-little rest between tasks or attempts

-distributed
-more frequent training session
-training lasts for a shorter period of time
- more time between attempts

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15
Q

massed and distributed benefits

A

mass-
-easier to schedule
-less commitment over course of week
-parents get there

distributed
-higher level of learning achieved

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16
Q

massed and distributed negatives

A

m - athletes don’t retain the skill as fast and need longer to improve performance

d- more time consuming (days) and organization

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17
Q

What are types of practice variability

A

blocked and random practice

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18
Q

what is random practice

A
  • varying of different movement skills throughout training session
  • used with more experienced athletes (autonomous and associative)
    -increases retention compared to block (repeat it successfully at diff occasions)
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19
Q

what is blocked practice

A
  • practice same skill continuously without changing to different task
  • used more with cognitive learners
    -enviro needs to be predictable to replicate the skill consistently
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20
Q

what are styles of coaching instructions

A
  • direct and constraints based coaching
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21
Q

difference between direct and constraints based coaching

A

Direct coaching everybody learns the same (coach makes all the decisions)

Constrains-based coaching everybody learns slightly different ( coach develops boundaries)

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22
Q

benefits and limitations of direct coaching

A

Benefits
-Don’t have to be as knowledgeable of the sport
-Less time consuming
-There are often multiple people, easier to teach everyone the same thing ( the average )
Limitation
-Doesn’t account for differences in people (tailored to people)
-Don’t learn to solve movement themselves/ self correct

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23
Q

characteristic of constraint based coaching

A
  • boundary is set and athlete has to problem solve
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24
Q

in order to have a constraint based approach they need to have:

A
  1. A solid knowledge of specific sports
  2. Experience with developing a range of games and manipulating different constraints
  3. Understanding of the individual players strength and weaknesses.
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25
what are the types of constraints (constraint based coaching)
individual- body size, confidence, fitness, decision making skills enviro- (physical)- noise, access, terrain (social/cultural)- peer group, cul norms Task- rules of sport, field dimensions, team size, stage of game (beg or end)
26
what is the importance of feedback
- fix errors, motivation from identifying progress, reinforcement through pos feedback
27
what are the types of feedback
intrinsic (internal) augmented (external)
28
what is intrinsic feedback
- performer uses their own sense to asses performance ( visual, auditory, touch, proprioception(feel inside body eg joint)
29
Augmented feedback
- feedback received outside of body (success or fail) - knowledge of results - knowledge of performance ( WHY were you successful or not)
30
what is the difference between direct coaching and constraints based coaching
d- coach makes all the decisions and performer completes task set by coach c- coach develops boundaries to shape skill execution
31
what are the qualitative movement analysis principles
-preparation- what is being assessed -observation -evaluation- identify what is being done right and wrong -error connection
32
what is force
push or pull acting on an object eg gravity, air res, lift Mass x Accel
33
momentum
a measure of the amount of motion an object has and it's resistance to changing that momentum mass x velocity
34
impulse
change in momentum of an object a force must be applied over a period of time to change momentum force x time - landing gymnast has a mat and bent knees to reduce force
35
what is the equation for force and what it means
m x a - the heavier or faster an object moves the more force it has - force either changes shape of an object or moves it
36
what are the types of force in sport
- friction - gravitational force - air and water resistance - weight
37
friction
- occurs when two surfaces come in contact with each other high friction benefit- running low- swimming
38
what is air resistance/ water
- when an object/body moves through air it experiences a drag force - as you run body has to break through air particles in front of you, slow you down as you move through them drag force- opposes direction of motion -drag affected by cross sectional area of body (size), speed of object and air density (thick, high altitude)
39
gravitational force
- pulls objects towards earths surface - force of attraction between to bodies or objects
40
weight vs mass
w- mass x gravity measured in Newtons m- measured in kg
41
inertia
- tendency of an object to resist change in it's state of motion - object will remain at rest or moving until another force acts upon it - greater an objects mass the greater its inertia- more force needed to overcome it
42
momentum
- amount of motion possessed by a moving object -kg . m/s - mass x velocity - if two objects have same mass but diff velocity faster velocity has most momentum and visa versa
43
summation of momentum
- maximum velocity is created when momentum is generated in a summed/added manner from larger body parts close to the centre of gravity to those further away - requires use of multiple joints and work together to create max velocity which is transferred to object
44
conservation of momentum
momentum is conserved- doesn't change - decrease radius to increase velocity
45
angular momentum
motion around an axis - moment of inertia x velocity
46
moment of inertia
mass x radius squared - the object x distance of the body's center of gravity from the axis of rotation squared
47
impulse
- change in momentum of an object impulse= force x time -a change in momentum can either be high amount of force in a short time e.g hitting baseball pitch - low amount of force over longer period of time e.g catching egg- decrease momentum - csnude concept to propel or slow object
48
Newtons law of Motion (angular)
- the angular (rotational) momentum of a body remains constant unless acted upon by an external tourque
49
newtons second law
- law of acceleration - a force applied to an object will produce a change in motion (acceleration) in the direction of applied force that is directly proportional to the size of the force and inversely proportional to the mass of an object f=ma proportional- more force = faster -inversely proportional= object weighs less it will accelerate faster
50
torque
rotational force, applied to an object will produce a change in angular motion in the direction of the applied tourque
51
newtons third law
-law of action reaction - for every action equal and opposite reaction - some objects have large mass (earth) therefore the force produced isn't enough to overcome inertia
52
distance vs displacement
-dis- no direction, measures path start to finish place- direction, how far an object is from its starting position
53
speed vs velocity
-s- distance over time taken (sxt) v- displacement over time taken
54
angular speed and velocity
55
acceleration
change in velocity
56
projectile motion
object or body launched into air , only affected by gravity and air res
57
levers
58
speed and height of release
59
equilibrium
when all forces and torques are balanced
60
stability
- resistance to the disruption of equilibruim - when stability is increased its harder to disrupt equilibrium and therefore balance
61
balance
- ability to control equilibrium
62
sport example of low stability
l- soccer goalie, unstable pos to enhance performance as goalie can accelerate faster to block the ball from going into the goal -diver
63
high stability sport example
- netball, increase to decrease stepping
64
base of support and center and line of gravity
65
think MOI
- rotational inertia, resistance to rotating mass x radius2
66
why is it better for a smaller bat
lower moi- less resistant to change so you can move it more = higher velocity
67
why is it better for a larger bat
- decreased mech adv, increase range of motion, increase velocity
68
types of constraints +examples
individual- body size -fitness -confidence Enviro- physical- noise lighting -social-peer, cultural norms ask- rules of sport -field pitch dimensions
69