Flat dumbbell press

Lie flat, dumbbells at chest level with elbows at ~75° from torso, feet planted.

family=presspattern=horizontal pressforce=pushmechanic=compoundequipment=free_weight

Muscles

muscle emphasis · training guidance

chestPRIME
triceps68
front delts56
Primary
chest
Supporting
triceps, front delts

Mechanics

Pattern
horizontal press
Equipment
dumbbells, bench
Geometry
90° Alignment
Target feel
Chest stretches at bottom; both bells arc toward each other on the press.
Progression
Move to the next dumbbell pair when all reps land clean; add a paused rep at bottom.
Regression
Machine chest press if shoulder stability is limiting; reduces stabilization demand.

Watch for

  • Elbows flaring to 90° — transfers stress to shoulders
  • Bells drifting toward face instead of straight up
  • Losing tension at lockout by clacking bells together

Equipment context

Dumbbells allow a longer range of motion and independent arm movement, which can reveal side-to-side differences.

Substitutions

Progression ladder

  1. Beginner / regression: Machine chest press if shoulder stability is limiting; reduces stabilization demand.
  2. Standard: Flat dumbbell press
  3. Advanced / progression: Move to the next dumbbell pair when all reps land clean; add a paused rep at bottom.

Atlas metrics

Movement pattern
horizontal press
Primary target
chest
Supporting muscles
triceps, front delts
Equipment
dumbbells, bench
Joint geometry
90° Alignment
Alternatives
3 substitutions

Evidence & limits

Last reviewed against peer-reviewed biomechanics references. Exercise descriptions are framed as training guidance, not medical advice.

Source: ExRx.net Exercise & Muscle Directory

Eccentryx is fitness software. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease, injury, or medical condition. Consult a licensed physician before beginning any exercise program.

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FAQ

How do I set up Flat dumbbell press?
Lie flat, dumbbells at chest level with elbows at ~75° from torso, feet planted.
What should I feel during Flat dumbbell press?
Chest stretches at bottom; both bells arc toward each other on the press.
What are common mistakes with Flat dumbbell press?
Elbows flaring to 90° — transfers stress to shoulders; Bells drifting toward face instead of straight up; Losing tension at lockout by clacking bells together
How do I progress Flat dumbbell press?
Move to the next dumbbell pair when all reps land clean; add a paused rep at bottom.
What can I do instead of Flat dumbbell press?
Barbell bench press, Machine chest press, Push-up
Flat dumbbell press anatomy diagram.
The movement · Elbow 73°→0° · Shoulder (deep DB stretch) 62°→88°
FgFe73→0° Elbow180→180° Torso62→88° Shoulder (deep DB stretch)

Flat dumbbell press: press pattern, 2400 ms rep trace, engine-derived.

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