Ch 7 - Flexibility Flashcards
Flexibility
normal extensibility of all soft tissue that allows a joint to move through its full ROM
Extensibility
capability to be elongated or stretched
Dynamic ROM
optimal control of movement through joint’s full ROM; combination of flexibility & nervous system’s ability to control ROM efficiently
Neuromuscular efficiency
ability of nervous system to recruit muscles to work correctly in all 4 ways, and to produce/reduce/dynamically stability force in all 3 planes
Postural distortion pattern
predictable patterns of muscle imbalances
Relative flexibility
body’s tendency to seek path of least resistance
Muscle imbalance
alteration in length of muscles surrounding joints
Reciprocal inhibition
simultaneous contraction of one muscle and relaxation of its antagonist, allowing movement; agonist gets signal to contract at the same time the antagonist gets the signal to relax
Altered reciprocal inhibition
caused by tight agonist decreasing neural drive to its antagonist
Arthrokinetic dysfunction
biomechanical and neuromuscular dysfunction leading to altered joint motion
Autogenic inhibition
when neural impulses that sense tension are greater than impulses that cause muscles to contract, providing inhibitory effect to muscle spindles; the reason stretching creates changes in extensibility
Pattern overload
consistantly repeating the same pattern of motion
Davis’s law
states that soft tissue models along lines of stress
Cumulative injury cycle
injury causes trauma, body responds with inflammation and spasm (overactivity), this forms knots, which alters neuromuscular control, and leads to muscle imbalances, which are prone to injury; risk compounds with each cycle
Corrective flexibility
SMR and static stretching; to increase ROM and improve muscle imbalances and altered joint motion
Active flexibility
SMR and active-isolated stretching; to improve soft tissue extensibility and neuromuscular efficiency
Active-isolated stretching
agonists and synergists move limb through full ROM while stretching antagonists, creating reciprocal inhibition of muscle being stretched; 2 sets of 5-10 reps for 1-2 seconds
Functional flexibility
SMR and dynamic stretching, using multi-planar movement and full ROM; requires movement without compensations
SMR
corrects muscle imbalances, reduces trigger points, inhibits overactive muscles; find tender spot, and hold for 30 seconds
Static stretching
corrects muscle imbalances and lengthens overactive muscles; stimulates GTOs and inhibits muscle spindles; hold for 30 seconds
Active stretching
increases extensibility of soft tissues
Dynamic stretching
active extension of muscle, using force production and momentum, to move joint through full ROM; increases extensibility with optimal neuromuscular control; uses reciprocal inhibition; do 1-2 sets of 10-15 reps of 3-10 exercises