Exercise guide
Cable Lying Reverse Fly
- Intermediate
- Compound
- Rep-based
- Back
- Shoulders
This isolation exercise targets the posterior deltoids and upper back muscles by using a supine position to eliminate body momentum and ensure strict form. It provides constant tension throughout the entire range of motion, making it highly effective for shoulder rear-head development and postural health.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Place a flat bench in the center of a cable crossover machine and set both pulleys to the lowest position.
- Lie flat on your back on the bench with your head positioned between the pulleys.
- Reach across your body to grab the left handle with your right hand and the right handle with your left hand so the cables are crossed over your chest.
- Position your arms straight up over your shoulders with a slight bend in the elbows.
How to do it
- Exhale as you pull your arms out and down toward the floor in a wide arc until they are level with your torso.
- Squeeze your shoulder blades together at the bottom of the movement for a brief pause to maximize contraction.
- Inhale as you slowly return the handles to the starting position over your chest, resisting the weight on the way up.
- Maintain a controlled 2-1-2 tempo (2 seconds down, 1 second hold, 2 seconds up).
Form checklist
- Keep a slight, fixed bend in the elbows throughout the entire set.
- Ensure your lower back remains pressed firmly against the bench; do not arch your spine.
- Move only at the shoulder joint, avoiding any 'pumping' motion with the arms.
- Keep your wrists neutral and avoid curling them to pull the weight.
Pro tips
- Focus on leading the movement with your elbows rather than your hands to better isolate the rear delts.
- Imagine you are trying to pull the cables apart horizontally toward the side walls rather than just pulling them down.
- Maintain a 'soft' grip on the handles to reduce forearm and bicep involvement.
Make it harder
- Add a 3-second slow eccentric (lowering) phase to increase time under tension.
- Perform a 'top-half' partial rep after each full rep to further fatigue the posterior deltoids.
Frequently asked
- What muscles does the cable lying reverse fly work?
- The cable lying reverse fly primarily targets the rhomboids and trapezius, and also works the lats and serratus anterior as secondary muscles.
- What equipment do you need for the cable lying reverse fly?
- The cable lying reverse fly uses cable.
- Is the cable lying reverse fly good for beginners?
- The cable lying reverse fly is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.