Arm Elevation Flashcards
Lowering/Elevation Objectives
Normal glenohum rythm
Glenohum joint stabil/mobil
Scap stabil/mobil
Trunk stabil
Post-stroke issue meeting glenohum stabil/mobil
Inferior Subluxation: take up part of hemaperatic arm to maintain shoulder joint ex: sling/pocket
Anterior subluxation: abducts more, sag and lengthened on hemaparetic side, pull arm across body to add glenohum
Flexor Synergy post stroke
During reach: shoulder abd shoulder ER elbow flexion frearm supination
Post-stroke initiating with scapular elevation
NEVER a normal reach pattern-shows compensating
don’t meet obj of scapular stability/mobility
Predisposes them to move with flexor synergy
Work with patients in scap stabilized position to get shoulder flexion/elbow extension
Arm elevation
Phases
Elevation: dependant on position of arm to full elevation
Lowering: full elevation to dependant position of arm
OBJ:
Normal glenohum rythm
2:1 ration
Maintains GHJ stability when arm overhead
Maintains normal length-tension of rotator cuff
Minimizes subacromial impingment
OBJ:
Glenohum stability and mobility
Stability: via compression
rotator cuff stabilizes
Mobility: via force couple action
Supraspinatus helps spin clockwise in line of pull and rotates down; counterbalances upward pull of delt
OBJ:
Scapular stability and mobility
Up/Mid/Lower trap, serratus, delt all work together to allow functional movement with upward rotation
Weakness: lose stability
ex: scapular winging if serratus weak
ex: weak lower trap- translates upward
OBJ:
Trunk stability
As trunk goes scapula goes with it
One leg tasks: throwing
palvis stability becomes critical, can compensate with trunk
Changing orientation of arm to aim changes torque at shoulder and elbow
Possible compensatory patterns of arm elevation
Shrug using upper trap- cuff weakness, lacks inf glid (tight caps), gives pseudo abduction
Trunk lean: further pseudo abd/elevation
Elbow flexion: shortens lever arm if weakness
Overuse levator scap: if lack stability, gives 30 degrees of abd
MOST COMMON compensatory patterns
Scapular elevation: induces pseudo shoulder abduction
Lateral trunk lean: induces pseudo shoulder abduction
Elbow flexion: reduces gravitational lever arm