Myofascial release (kania ) Flashcards
what is stress
force normalized over the area on which it acts.
Normal stress is perpendicular to the cross-section
sheer stress is parallel.
what is stiffness
the ratio of load to the deformation/strain it causes the “tight” concept
what is creep
the continued deformation (increasing strain) of a viscoelastic material under constant load over time
release of stored kinetic energy
solid material moving slowlly and deforming permanately under the stress placed upon it.
ice flowing despite being frozen
what is compliance
the inverse of stiffness “the loose concept”
what is hysteresis
a time lag in the occurrence of two associated phenomena, as between cause and effect; change in energy content
it is the energy lost when the energy returned is not equal to the energy stored and represents residual strain
so when you stretch down to touch your toes you can get farther each time and the longer you hold it
what is strain
change in shape due to stress
what is fascia
fibrous CT masses that bind together the structures of the body
what are GAG’s and their function
glycosaminoglycans
generated from fibrocytes in response to motion
HYDROPHILIC (water loving) and determine the relative fluid content of connective tissue
more GAGs = more H20 binds to them so this makes the tissues less stiff
what is the function of fascia?
packaging
protection- stabilize structures and establish limits of motion
posturing - contain proprioceptors that sense movement
passageways - for arteries, vv’s, nn’s, lymphatics
where does 75 percent of proprioception occur? and the remaining 25 percent?
in fascial sheaths - so this is why we might treat fascia to improve proprioception
remaining 25 percent occurs in ligaments, tendons, joint capsules and muscle spindle activity
what does joint immobilization or long periods of decreased motion enable the formation of?
increased collagen crosslinks causing myofascial connective tissue stiffness
**myofascial adaptations accompany the articular and periarticular motion restrictions and muscle imbalance
in what orientation is normal stress?
perpendicular to the cross section
in what orientation is sheer stress?
parallel to the cross-section
what is wolff’s law
bones (and soft tissue) tend to deform along the lines of force placed on them.
what is hooke’s law?
any strain/deformation placed on an elastic body is in proportion to the stress placed on it
what is newton’s third law>
when 2 bodies interact, the force exerted by the first on the second is equal in magnitude and opposite in direction to the force exerted by the second body on the first body.
what is pascal’s law
pressure applied to a liquid at rest from any point is transmitted equally in all directions.
external forces applied to fascia facilitate …
restoration of normal structure and function