Lecture 3 - Principles of Movement Flashcards
Outline what primal movement is
Life begins on the ground
Our first movements involve looking around, then we are rolling over onto our bellies to initiate crawling
Eventually this leads us to grabbing hold of something and taking our first steps
First few years of our life’s we move toward things, squat down and learn how to control our body
Define mobility:
Mobility refers to freedom of movement surrounding a joint
Define Stability:
Stability is the ability to control force and movement.
mobility problems are ___ problems. they may be the the byproduct of inappropriate __ or a poorly managed __
movement problems. inappropriate movement or a poorly managed injury
Post injury, the body’s current level of stability and mobility can alter motor programs. If there is restricted movement due to reduced mobility (spasm/tightness) or stability issues (reduced proprioception/strength) the movement pattern will adapt and compensate creating less than optimal _____(adapted by feel)
motor programming
what is good stability?
Right muscles doing the right job at the right time with the right amount of force.
Muscle function: local stability role
Incr. mm stiffness to control segmental transition
Anticipatory recruitment prior to loading
muscle function: global stability role
Generates force to control movement
Low threshold eccentric decel of movement
Low threshold postural control and establishing neutral
muscle function: global mobility role
Generates force to produce ROM
Concentric acceleration of movement
High load shock absorption and stability
Low threshold motor unit recruitment
Maintain postural positions Adapt to changes in posture Normal functional movement of limbs Slow MU Dominant Slow/Static/Sustained Low load, non-fatiguing
high threshold motor unit recruitment
Accelerated movement Large/sudden shift in COG High force/loads Conscious max contraction Fast MU Dominant Fast/Fatiguing, High Load
List the primary need mobility or stability for the following joint: ankle
mobility (sagittal)
List the primary need mobility or stability for the following joint: knee
stability
List the primary need mobility or stability for the following joint: hip
mobility
List the primary need mobility or stability for the following joint: lumbar spine
stability
