Shoulders
Name 4 movments possible at the glenohumeral joint
Flex/Extend
Ab/Adduct
Horizontal Ab/Adduct
In/External Rotation
Relative to the floor, in what direction do gravity eliminated movements occur?
Parallel to the floor
Name 3 movements possible at the scapulothoracic joint
Elevation
Depression
Protraction (abduction)
Retraction (adduction)
Upward/Downward Rotation
Which is better designed for greater ROM: Parallel or Pennate muscle fibers?
Parallel
Name the major action of the triceps
Elbow extension
What is the convex surface of the glenohumeral joint called?
Humeral head
What is the proper position to measure gravity eliminated horizontal abduction?
Seated or standing
Is open or closed chain better for building stability?
Closed
Slow twitch (type IA) muscle fibers are best for which kind of muscle contractions?
slow, prolonged (isometric)
Name the major muscle movement of the rhomboids
scapular retraction
How many axes/planes can the glenohumeral joint move it?
3/ tri-axial
In what position would you measure gravity eliminated shoulder flexion ?
side lying
How many trials should be averaged when measuring grasp strength with a dynomometer?
3
isotonic
What part of the body does the flexor pollicus breview move?
Thumb
What is the name of the bony landmark on the lateral end of the spine of the scapula?
Acromion Process
What relation to gravity do muscle grades 2+/3- to 5 have?
Against Gravity
What is the name for the prime mover of a muscle?
Agonist
While bringing your drink up to take a sip, you are using what type of isotonic contraction?
Concentric
What action does the supraspinatus help initiate?
Shoulder abduction
What is the concave surface of the glenohumeral joint called?
Glenoid fossa
Demonstrate radial deviation against gravity
*
What is the typical ROM for the shoulder joint?
170/180
Define a sarcomere
What are two major actions of the Pectoralis Major?
Flexion
Adduction
Medial Rotation