TETSUBarbell Skier vs Machine Seated Reverse Fly (Parallel Grip)
The Barbell Skier and the Machine Seated Reverse Fly (Parallel Grip) both train the delts as their primary muscle. The Barbell Skier uses a barbell while the Machine Seated Reverse Fly (Parallel Grip) uses a machine. Here is how they compare and when to pick each.
Side-by-side comparison
| Barbell Skier | Machine Seated Reverse Fly (Parallel Grip) | |
|---|---|---|
| Primary muscle | delts | delts |
| Body part | shoulders | shoulders |
| Supporting muscles | triceps and core | trapezius and rhomboids |
| Equipment | barbell | machine |
| Steps in our guide | 5 | 5 |
How each one starts
Barbell Skier — first steps
- Stand with your feet shoulder-width apart and hold a barbell in front of your thighs with an overhand grip.
- Bend your knees slightly and hinge forward at the hips, keeping your back straight and chest up.
Machine Seated Reverse Fly (Parallel Grip) — first steps
- Adjust the seat height and position yourself on the machine with your chest against the pad and your feet flat on the floor.
- Grasp the handles with a parallel grip, palms facing each other, and keep your arms slightly bent.
Full step-by-step guides are linked below.
Which should you choose?
The Barbell Skier lets you load the heaviest weights and progress in small, steady jumps. The Machine Seated Reverse Fly (Parallel Grip) fixes the movement path so you can push close to failure with less skill demand. 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 Barbell Skier better than the Machine Seated Reverse Fly (Parallel Grip)?
Neither is universally better — both train the delts as the primary mover. The Barbell Skier lets you load the heaviest weights and progress in small, steady jumps, while the Machine Seated Reverse Fly (Parallel Grip) fixes the movement path so you can push close to failure with less skill demand. Choose based on your equipment and which movement you can progress consistently.
Can I do both the Barbell Skier and the Machine Seated Reverse Fly (Parallel Grip) 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 Barbell Skier and the Machine Seated Reverse Fly (Parallel Grip) work the same muscles?
The primary muscle is the same: the delts. Supporting muscles differ slightly — triceps and core for the Barbell Skier versus trapezius and rhomboids for the Machine Seated Reverse Fly (Parallel Grip).
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.