Reverse Flye Machine
Posterior Deltoid Flyes

A reverse flye machine is a great way to work the posterior deltoid, rhomboids, and middle trapezius.

Working the posterior deltoid and scapular muscles can significantly increase shoulder stability, and working these muscles can have a positive effect on shoulder posture.

If you don't have access to a gym, you can also do this exercise with dumbbells or resistance bands.

Below are pictures of a common shoulder machine that you'll find in most gyms.

Shoulder Exercises for Men and Women: Reverse Flye Machine

Starting Position: Adjust the seat so that the handles are about shoulder level, and make sure to maintain good neck and lower back posture.

Form: Exhale and pull your arms apart until your shoulders are parallel with your body. Hold for a brief second and then slowly return to the starting position.

reverse flye machinereverse flye machine

Personal Trainer Tips: You don't have to pull your arms as far back as possible during this exercise. Use a comfortable range of motion, and don't force your shoulder too far past parallel with your body.

As with every exercise posture is very important, make sure that your keep your head in good alignment and don't let your head move forwards.

Also make sure that you do not cheat by using your lower back to pull the weights backwards. If you feel muscle work in your lower back, that could be a sign that the weight you are using is too heavy and you are likely compensating by using your lower back muscles.


It's very important to work the upper back to counter balance the strength of the chest muscles.

This exercise can help to increase shoulder stability and positively affect shoulder posture.

If you want to further increase your shoulder stability, add in some more specific rotator cuff exercises to your workout routine.

Yours in Health,
Dr. Charles PT/PT

Learn More of the Best Shoulder Exercise to Compliment the Reverse Flye Machine

Or Go to the Home Page of All About Arm Exercises

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