TETSUCable Cross-Over Reverse Fly vs Left Hook (Boxing)
The Cable Cross-Over Reverse Fly and the Left Hook (Boxing) both train the delts as their primary muscle. The Cable Cross-Over Reverse Fly uses a cable while the Left Hook (Boxing) is bodyweight-only. Here is how they compare and when to pick each.
Side-by-side comparison
| Cable Cross-Over Reverse Fly | Left Hook (Boxing) | |
|---|---|---|
| Primary muscle | delts | delts |
| Body part | shoulders | shoulders |
| Supporting muscles | rhomboids and trapezius | biceps, triceps and forearms |
| Equipment | cable | bodyweight |
| Steps in our guide | 6 | 5 |
How each one starts
Cable Cross-Over Reverse Fly — first steps
- Attach a D-handle to each low pulley cable and stand in the middle of the cable crossover machine.
- Grasp the handles with a pronated grip (palms facing down) and take a step forward, positioning your feet shoulder-width apart.
Left Hook (Boxing) — first steps
- Stand with your feet shoulder-width apart and your knees slightly bent.
- Keep your left hand up to protect your face and your right hand by your chin.
Full step-by-step guides are linked below.
Which should you choose?
The Cable Cross-Over Reverse Fly keeps constant tension on the muscle through the whole range of motion. The Left Hook (Boxing) needs no equipment and scales through leverage, tempo and reps. If your gym has both options, neither is a wrong choice: pick the one that feels strongest through a full range, and swap after 6 to 8 weeks to keep the delts adapting.
Full form guides
Common questions
Is the Cable Cross-Over Reverse Fly better than the Left Hook (Boxing)?
Neither is universally better — both train the delts as the primary mover. The Cable Cross-Over Reverse Fly keeps constant tension on the muscle through the whole range of motion, while the Left Hook (Boxing) needs no equipment and scales through leverage, tempo and reps. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Cable Cross-Over Reverse Fly and the Left Hook (Boxing) in the same program?
Yes, but usually not in the same session — they overlap heavily on the delts. A common setup is one as your main movement and the other on a second training day, or alternating them block by block.
Do the Cable Cross-Over Reverse Fly and the Left Hook (Boxing) work the same muscles?
The primary muscle is the same: the delts. Supporting muscles differ slightly — rhomboids and trapezius for the Cable Cross-Over Reverse Fly versus biceps, triceps and forearms for the Left Hook (Boxing).
Track it in Tetsu
Tetsu tracks both movements separately, keeps your PRs per exercise, and tells you which one is actually progressing. Free to start.