Primary Muscles Worked:  Medial Deltoids (middle of the shoulder), Trapezius (upper part of the back).

1.    Start Position:  Inspect the tube for any tears or worn spots. Stand securely on a light tube with one or both feet.  Handles in each hand, palms facing in.  Abs contracted, chest lifted and shoulders down and away from your ears.  Stand tall.
2.    Execution:  Exhale as you raise your arms out to your sides.  Careful not to take your arms higher than your shoulders.  Pause at the top of your movement.
3.    Inhale and control the movement back to the start position. Keep your abs contracted and your back straight throughout the movement.
4.    Avoid this exercise if you have any shoulder problems or feel any pain in the shoulders (or anywhere else).

Trainer Tips:
•    Proper form, posture and correct breathing are very important – not only to isolate the targeted muscle group, but also to prevent injury.
•    Making the mind/muscle connection will insure that you get the most out of the exercise.
•    Keeping constant tension on the tube will insure that you get the most out of the exercise.  
•    Maintain slow, controlled movement throughout the exercise.