Scapulohumeral Rhythm

Question 0

Phase 1B UE elevation

Answer 0

30-90 scaption
60-90 flexion
Consistent upward scapular rotation
Axis at root of spine and SC joint

Question 1

Phase 1A UE elevation

Answer 1

Setting phase
0-30 scaption
0-60 flexion
Predominantly glenohumeral
Axis of rotation at root of spine of scapula and SC joint

Question 2

Phase 2A UE elevation

Answer 2

90-120 of elevation
Clavicular elevation tension costoclavicular ligament
Ligament limits elevation to 30
Axis of rotation shifts to AC joint

Question 3

Phase 2B UE elevation

Answer 3

120-end range
Axis at AC joint
Upward rotation accompanied by anterior tip
Coracoclavicular ligament is tension loaded and posteriorly rotates clavicle