Exercise guide
Dumbbell Overhead Sit-Up
- Intermediate
- Compound
- Rep-based
- Shoulders
- Waist
The Dumbbell Overhead Sit-Up is a potent core builder that integrates shoulder stability with spinal flexion, forcing the abdominals to work against a high center of gravity. It effectively targets the rectus abdominis and obliques while demanding isometric strength from the deltoids.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Lie flat on your back with knees bent and feet flat on the floor, hip-width apart.
- Hold a dumbbell with both hands directly over your chest with arms fully locked out.
- Tuck your chin slightly and press your lower back firmly into the mat to engage your core.
How to do it
- Exhale as you sit up, keeping the dumbbell moving in a perfectly vertical line toward the ceiling.
- At the top of the movement, ensure your torso is upright and the weight is directly over your shoulders.
- Inhale as you slowly roll your spine back down to the floor one vertebra at a time, maintaining the vertical arm position.
- Control the descent for a 2-3 second count to maximize time under tension.
Form checklist
- Keep your arms perpendicular to the floor at all times, not angled forward.
- Ensure your feet remain flat on the ground throughout the entire range of motion.
- Avoid 'throwing' the weight to create momentum; use your abs to lift.
- Keep your elbows locked to maintain shoulder tension.
Pro tips
- Think about 'punching' the ceiling as you rise to keep the deltoids active and the weight stable.
- At the peak of the sit-up, push your chest forward between your arms to improve thoracic mobility and core engagement.
Make it harder
- Perform the movement with legs straight out to remove hip flexor assistance and increase abdominal isolation.
- Hold a dumbbell in each hand to increase the stability requirement for each shoulder independently.
Frequently asked
- What muscles does the dumbbell overhead sit-up work?
- The dumbbell overhead sit-up primarily targets the abs, deltoids, and obliques, and also works the serratus anterior and trapezius as secondary muscles.
- What equipment do you need for the dumbbell overhead sit-up?
- The dumbbell overhead sit-up uses dumbbell.
- Is the dumbbell overhead sit-up good for beginners?
- The dumbbell overhead sit-up is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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