Torso Flashcards
what is the role of stability in movement?
- defining the torso/core
- role of the spine in force transfer (don’t want to lose energy)
- provide an understanding of the structure and function of the core
- present how to observe core assessment and understanding athlete limitations
- discuss progressive core development needed to build physical robustness and maximize performance
are the rectus abdominis our core movers?
no, internal/external obliques
what are the movement categories for torso?
- anti-flexion
- anti-extension
- anti-rotation
*anti lateral/cross-flexion
name the local “deep” stabilizers
- diaphragm
- transversus abdominis (wraps around, creates stability)
- multifidus
- pelvic floor (groin muscles attach here)
name the global “superficial” stabilizers
- external oblique
- internal oblique
- adductor brevis
- adductor longus
- adductor magnus
name the global movers
- latissimus dorsi (attaches to humerus which is involved in torso)
- thoracolumbar fascia
- gluteus maximus
the function of the anterior toso is _
the prevention of extension and the creation of flexion
the function of the rotators is _
the prevention of rotation to effect optimal rotation the opposite way
the role of thoracolumbar fascia is
joining glutes to opp side lat (allows force to move from ground through torso to extremities
why do we do iso before concentric?
we have to be good at stopping and preventing movement before we speed up
coremusculature (torso) functions differently:
- muscles co-contract, stiffening the torso (ex. co contraction of ant/post torso)
- torso transmits and creates force
- torso more often than not, functions to prevent motion rather than initiating it
sports and ADL tasks demand that power be generated _
at the hips and transmitted through a stiffened core
the role of torso in motion is a _ and _
pillar and generator
describe the role of torso as a pillar
stable base for movement and forces transfer through (sprinting, skating, swimming)
*allows limited leaks in energy and effective energy transfer
describe the role of torso as a generator
mover that allows COG and BOS to change in order to overcome intertia and rapidly alter change of position or direction (trampoline, diving, deceleration)
COG = center of gravity, BOS = base of support
name some sports that use the torso as a pillar and as a generator
pillar: to sprint, need core to be stable
generator: baseball, tennis, gold
*have to create rotation
describe the components involved in breathing mechanics
muscles of the inner core
- diaphragm
- pelvic floor
- multifidus
- transverse abdominis
the muscles of the inner core have a dual function…
respiration: low threshold muscular movement
stabilization: ex. diaphragm creates intraabdominal pressure
what is the ZOA?
zone of apposition
*google defition
the space where the diaphragm begins in the ribcage, all the way down to the lowest ribs
describe the zone of apposition
mechanical action and respiratory advantage depend on diaphragm position and relationship within the ribcage
- if ZOA is not optimal, adaptive breathing strategies
what is a major influence on the ZOA?
position of the ribcage
- ribs down, good zoa (stability in spine)
- ribs flared/anterior ribs = decreased zoa, decreased diaphragmatic function
what sports require a more lordotic position?
gymnastics
- powerlifting and olympic weightlifting, to create stability
- if we don’t have t spine extension, need lumbar spine extension
describe static stability
eg. single leg balance test
- holding a posture
- time under tension
- resisted gravity or external forces
describe dynamic stability
- stability during functional movements
- eg. when abdominal muscle stabilizes trunk during a functional movement such as vertical jump
- transfer of force
**(slow mountain climber - dynamic stability at torso)
describe sub-optimal breath
- improper diaphragm function = upper chest breathing
- accessory muscles take over and may become hypertonic and/por develop trigger points
- compromised t-spine mobility, altered scapular position/mechanics, upper extremity function, forward head posture
***(diaphragm slows CNS)
