CYBEX VR2 Owner's And Service Manual page 85

• Range of Motion - Full normal abduction or flexion begins with the arm at the side in 0
degrees and ends in a vertical position overhead at 180 degrees.
• Associated Muscles - Collectively, the scapular muscles are involved in the scapular
rotation that is key to scapulohumeral rhythm. This combined motion of the scapula and
the shoulder joint is required to achieve elevation of the arm overhead in any plane. The
rotator cuff muscles act as dynamic stabilizers during elevation of the arm. The triceps are
always involved in pressing movements as elbow extension is required. Due to the external-
ly rotated position, the posterior deltoid plays a stabilizing role at best and in many shoulder
structures would prove to be an antagonist to overhead movements.
The Positioning
• Adjust the seat to align the handles with the top
of the shoulders.
• Check the weight to insure that the appropriate
resistance has been selected. Body position
and control of the motion should never be
compromised by excessive weight.
• Grip either set of handles and position the elbows
directly below the hands.
The Motion
• Press the handles upward with a smooth controlled
motion.
• Return slowly without resting, keeping the elbows
directly below the hands at the bottom of each
repetition.
Exercise
Page 3-54
CYBEX VR2 Owner's Manual
START POSITION
FINISH POSITION