ch 7 Flashcards
relative flexibility
tendency of the body to seek the path of least resistance during functional movement patterns; not a good thing
altered reciprocal inhibition
concept of muscle inhibition, caused by a tight agonist, which inhibits its functional antagonist
synergistic dominance
neuromuscular phenomenon that occurs when inappropriate muscles take over the function of a weak or inhibited prime mover
reciprocal inhibition
simultaneous contraction of one muscle and the relaxation of its antagonist to allow movement to take place
muscle spindles
major sensory organ of the muscle
composed of microscopic fibers that lie parallel to muscle fiber
sensitive to change in muscle length and rate of length change
prevent muscles from stretching too far or too fast
GTO
Golgi tendon organ
located where muscle and tendon meet
sensitive to change in muscular tension and rate of tension change
causes muscle to relax to prevent injury
TEN=tension
recommended type of flexibility in stabilization level
corrective flexibility
3 forms of flexibility
corrective, active, functional
corrective flexibility
stabilization level, phase 1; increase joint ROM, improve muscle imbalance, correct altered joint motion
active flexibility
strength level, phases 2 3 4
improve extensibility of soft tissue and increase neuromuscular efficiency by using reciprocal inhibition
SMR, active-isolated stretching
functional flexibility
power level, phase 5
occur in all 3 planes of motion, injuries most often occur in transverse plane
if soft tissue not extensible through full range of motion, risk of injury dramatically increases
SMR, dynamic stretching
technique that utilizes principle of autogenic inhibition
static stretching
technique that uses force production and momentum to take joint through a full range of motion
dynamic stretching
static stretching duration
min 30 seconds
active stretching duration
1-2 sets, 1-2 sec for 5-10 reps
