Reverse Machine Flyes — start position
Start
Reverse Machine Flyes — end position
End

Shoulders / Beginner / Isolation (single joint)

Reverse Machine Flyes

A machine isolation exercise for the rear delts, with the forearms assisting.

At a glance

Primary
Rear delts
Secondary
Forearms & grip
Equipment
Machines
Movement pattern
Reverse fly, Shoulder-blade squeeze
Level
Beginner
Type
Shoulders, Isolation (single joint)

Loads the shoulder. Use a load you can control and skip it if it causes pain.

How to do it

  1. Adjust the handles so that they are fully to the rear. Make an appropriate weight selection and adjust the seat height so the handles are at shoulder level. Grasp the handles with your hands facing inwards. This will be your starting position.
  2. In a semicircular motion, pull your hands out to your side and back, contracting your rear delts.
  3. Keep your arms slightly bent throughout the movement, with all of the motion occurring at the shoulder joint.
  4. Pause at the rear of the movement, and slowly return the weight to the starting position.

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Muscles worked

Neck (Front)Upper traps (Front)Front delts (Front)Side delts (Front)Chest (Front)Serratus anterior (Front)Biceps (Front)Forearms & grip — secondary (Front)Abs (Front)Obliques (Front)Hip flexors (Front)Quads (Front)Adductors (Front)Shins (tibialis) (Front)Calves (Front)Outer shins (peroneals) (Front)Feet (arch & toes) (Front)Neck (Back)Upper traps (Back)Upper back (rhomboids, mid/lower traps) (Back)Rear delts — primary (Back)Side delts (Back)Rotator cuff (Back)Lats (Back)Lower back (erectors) (Back)Triceps (Back)Forearms & grip — secondary (Back)Hip abductors (glute med) (Back)Glutes (Back)Hamstrings (Back)Adductors (Back)Calves (Back)
FrontBack
  • Primary: Rear delts
  • Secondary: Forearms & grip

Best for

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Photos and instructions: free-exercise-db (github.com/yuhonas/free-exercise-db), public domain.