Decline Dumbbell Fly
The decline dumbbell fly is a fly for the chest (pectorals), done with dumbbells. It also works the shoulders (deltoids). On weyt.ai it counts toward Balance as Chest (minimum 10 sets per 30 days) and toward your 12-week strength trend at the weight you log.
At a glance
| Muscle group | Chest |
|---|---|
| Primary muscles | chest (pectorals) |
| Secondary muscles | shoulders (deltoids) |
| Equipment | Dumbbell |
| Logged as | Reps per set |
| Strength scoring | Counts as a lift |
| Balance group | Chest · minimum 10 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 Chest group, which needs at least 10 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
decline fly, decline chest fly, decline dumbbell flys
Log it under any of these names and weyt.ai files it under the same exercise, so your history never splits across spellings.
Related chest exercises
- Dumbbell Chest Fly
- Incline Dumbbell Fly
- Cable Chest Fly
- Pec Deck Fly
- Resistance Band Chest Fly
- Ring Chest Fly
Everything else that counts as chest
Barbell Bench Press · Incline Barbell Bench Press · Decline Barbell Bench Press · Dumbbell Bench Press · Incline Dumbbell Press · Decline Dumbbell Press · Machine Chest Press · Smith Machine Bench Press · Cable Chest Press · Resistance Band Chest Press · Chest Squeeze and Hold · Push-Up · Wide Push-Up · Decline Push-Up · Incline Push-Up · Weighted Push-Up · Archer Push-Up · Dip · Weighted Dip · Assisted Dip · Medicine Ball Chest Pass · Smith Machine Incline Press · Machine Incline Chest Press · Barbell Floor Press · Dumbbell Floor Press · Svend Press · Knee Push-Up · Ring Push-Up · Plyometric Push-Up