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Dumbbell Decline Sit-Up

Step by step instructions, muscle activation and variants for the Dumbbell Decline Sit-Up.

MediumAbs

About this exercise

The dumbbell decline sit-up is a weighted abdominal exercise performed on a decline bench while holding a dumbbell at the chest. The decline angle increases the range of motion beyond a flat sit-up, while the added load makes it more challenging than the bodyweight version.

How to Perform

  • Secure your feet under the foot pads of a decline bench and lie back
  • Hold a dumbbell against your chest or upper torso with both hands
  • Brace your core and curl your torso upward, leading with the chest
  • Rise to a full seated position, bringing your chest toward your knees
  • Pause briefly at the top and squeeze the abs
  • Lower your torso slowly back to the starting position under control
  • Avoid pulling on your neck or using momentum to complete the movement

Muscle Activation

Primary
Abs
Secondary
CoreObliques

About the Dumbbell Decline Sit-Up

The Dumbbell Decline Sit-Up is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.