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There Ex -ch4
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What is flexibilty
ability to move a joint or series easily through an unrestricted pain-free ROM
hypomobility
restricted movement
selective stretching
allow restrictions to develop for improved functioning
types of stretching
manual
mechanical
self-stretch
neuromuscular
muscle energy
joint mobilization
neural mobilization
benefits of stretching
improves flexibility and ROM
injury prevention
improve function
properties of soft tissue
elasticity
viscoelasticity
plasticity
elasticity
return to pre-stretch length after short stretch
viscoelasticity
resists change but deforms after sustained stretch
non-contractile tissues only
plasticity
new and greater length after stretch is removed
effects of immobilization
reduced muscle length & # of sarcomeres in series
stess
amt of tension or load on tissues
strain
amt of deformation/ lengthening occurs during time stress is applied
elastic deformation
recovers to original length
breaks if stress exceeds strain
plastic deformation
new shape under slow rates of stress
breaks with quick stress
failure
rupture of tissue
static stretching
holding muscle in fully elongated position for a period of time
types of static stretches
manual/passive
self
advantages of static stretches
decrease chance of injury
ease of instruction
pt performs ind.
IDEAL STATIC stretch time
hold 30 seconds 3 reps..3 times a week
ballistic stretch
rapid forcefull intermittent stretch
high speed, high intensity
advantages of ballistic stretches
modified to sport specific
prepares athlete for sport of high velocity,
advantages of proprioceptive neuromuscular fascilitation
greatest improvement of extensibility
used with rom
muscle spindle fibers
do what?
stimulate what?
types?
are stimulated by?
sense muscle length
stimulate contraction
type Ia
type II
stimulated by excessive stretch
golgi tendon organs
do what?
stimulate what?
types?
are stimulated by?
inhibit contraction
stimulate relaxation
type Ib fibers
are stimulated by excessive contraction
describe Type Ia fibers
muscle spindle fibers that are large and rapid conductors
describe Type II fibers
muscle spindle fibers
small and slow conducting
Type Ib fibers
protective response against damage
junction of tendon and muscle
Contract-Relax
antagonist muscle stretched
isotonic contraction of antagonist
Hold-Relax
antagonist muscle placed on stretch
isometric contraction of antagonist
Autogenic Inhibition
relax of the affected muscle through contraction
reciprocal inhibition
relax of antagonist muscle through contraction of agonist
mechanical stretching
increase joint ROM using low load, long duration, in stretch
immature scar tissue
adaptable for 8 wks
with stress becomes organized
mature scar tissue
unadaptable after 14 wks
Author
laneaustin
ID
243866
Card Set
There Ex -ch4
Description
terms & concepts
Updated
2013-10-30T06:36:20Z
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