Reverse Pec Deck
The reverse pec deck is a rear-delt movement for the shoulders (deltoids), done on a machine. It also works the upper back (lats and rhomboids). On weyt.ai it counts toward Balance as Shoulders (minimum 6 sets per 30 days) and toward your 12-week strength trend at the weight you log.
At a glance
| Muscle group | Shoulders |
|---|---|
| Primary muscles | shoulders (deltoids) |
| Secondary muscles | upper back (lats and rhomboids) |
| Equipment | Machine |
| Logged as | Reps per set |
| Strength scoring | Counts as a lift |
| Balance group | Shoulders · minimum 6 sets per 30 days |
| Strength standards | none (standards exist for barbell and dumbbell lifts with published norms) |
How weyt.ai scores it
- Balance: every logged set counts toward the Shoulders group, which needs at least 6 sets per 30 days for full credit.
- Strength: counts as a lift. Your best working set each session feeds a best lift estimate (an estimated one-rep max) per lift, read over 12 weeks on the Strength screen.
- Routine: any session that includes it counts toward your weekly target, the 4-week consistency window and your streak.
Scoring is plain arithmetic, not AI: the same sets always give the same result. Read the method on the about page.
Also called
machine reverse fly, rear delt machine, reverse pec deck fly, machine rear delt fly, reverse fly, rear delt fly, rear delt raise
Log it under any of these names and weyt.ai files it under the same exercise, so your history never splits across spellings.
Related shoulders exercises
- Dumbbell Rear Delt Fly
- Cable Rear Delt Fly
- Machine Shoulder Press
- Machine Lateral Raise
- Plate Front Raise
- Smith Machine Overhead Press
Everything else that counts as shoulders
Landmine Press · Barbell Upright Row · Dumbbell Upright Row · Barbell Overhead Press · Dumbbell Shoulder Press · Arnold Press · Push Press · Dumbbell Push Press · Kettlebell Press · Band Overhead Press · Dumbbell Lateral Raise · Cable Lateral Raise · Band Lateral Raise · Dumbbell Front Raise · Cable Front Raise · Barbell Front Raise · Pike Push-Up · Handstand Push-Up · Battle Ropes · Cable Upright Row · Z Press · Band Front Raise · Cable External Rotation · Band External Rotation · Dumbbell External Rotation · Handstand Hold · Push Jerk · Clean and Press · Dumbbell Clean and Press · Kettlebell Clean and Press · Overhead Carry · Log Press