MODULE THREE Flashcards
coach training of movement
target conditioning
eg type, intensity, nutrition, frequency
clinical type of movement
diagnose movement disorders
and prescribe movement that aid recovery
skill acquisition type of movement
isolate skills to improve
progression from unskilled to skilled
to study performance type of movement
categories aid analysis
motor skill classification
an act or task requiring movement for successful completion
why do we classify skills
to help explain common features of skills like endurance etc
3 parts of timing of muscle activity
- in phase movements
- anti phase movements
- coactivation
timing of muscle activity - In-Phase movements
bilateral (both sides of the body) homologous muscles groups contract synchronously eg. breaststroke
timing of muscle activity - Anti-Phase movements
muscles contract in alternating fashion eg. gait cycle
timing of muscle activity - Co-Activation
of muscles about joint/s: multiple muscles contacting together (synergy)
eg. limit of degree freedom
groups of muscles activated together to control joints
what are the 3 types of muscle contractions
- concentric
- eccentric
- isometric
concentric muscle contraction
muscle shortens during force application (eg. bicep curl)
eccentric muscle contraction
muscle lengthens during force application
eg. tricep extension
isometric
no change in length during force application
eg. holding and object
resistance vs endurance training
classification usually based on energy system
endurance = involves sustained effort
resistance = involves moving weight (eg. body weight)
open skill. definition
performed in a changing environment. movements are continuously adapted according to the surrounding context
eg, surfing
closed skill, defintion
performed in a predictable environment. movement can be planned ahead and self paced
eg. long jump
open skill exercise - open kinetic chain
the distal segment can move freely
segments isolated
- bicep curl (the hands are free to move)
closed skill exercise - closed kinetic chain
distal and proximal segments are fixed
functional and increase muscle recruitment
eg. press up (both aren’t free to move, hips, hands legs)
speed accuracy trade off
- the faster you move the less accurately you move
- aiming movements trade off between speed and accuracy
- important for design
- trainable
movements skill normally occur on a
continuum - bit of both; open and closed skills
cognitive skill
all motor skills includes these
eg, planning, scanning etc
non-contact forces relate to
mass and magnitude of attraction
if we want to change the state of motion of an object or body, we need to
apply a force, a push or a pull