hypo mobility Flashcards
hypo mobility
decreased mobility
mm shortening
factors contributing hypomobility
immobilization extrinsic / int factors posture habits aging
contracture
shortening of mm unit around joint (loss ROM)
5 types of contracture
myostatic pseudomyostatic arthrogenic periartricular fibrotic
myostatic contracture
mm unit short
pseudomyostatic
constant contraction (CNS lesion)
arthrogenic
intra articular pathology
periarticular
due to tissue crossing / attaching to joint
fibrotic
adhesions / scar tissue
flexibility
determines ROM without injury
relative flexibility
stiffness in one mm group makes others compensate
what happens to mm post immbolization
dec mm fibres cross sectional area, dec myofibrils, dec motor unit recruitment, mm weakness
length tension relationship for shortening and lengthened position
short LEFT
length RIGHT
effects of shortened position in immobilization
dec sarcomere,
mm shortens,
inc atrophy
effects position of immobilization lengthened position
increased sarcomere
dec atrophy