Dead Bug
Anti-extension core exercise that builds deep core stability and protects the lower back. Teaches the core to resist spinal extension while moving the limbs...
Difficulty
beginner
Category
strength
Primary Muscles
Core
Equipment
Bodyweight
Form cues
Simple cues for better reps
- Brace like you are about to be nudged and keep breathing behind that brace.
- Move slowly enough that your pelvis and ribs stay controlled.
- Stop the set before your lower back takes over.
- Keep tension through the target range instead of rushing reps.
Common mistakes
What to avoid
Lower back arching
Shorten the range and pull the ribs down until the abs can control the position.
Holding your breath for the whole set
Use small controlled breaths while keeping your brace.
Moving too quickly
Slow the rep down and make the position the challenge.
How it should feel
Know when your form is on track
Target areas
- Abs and deep core should do most of the work.
- Hip flexors or shoulders may assist depending on the exercise, but should not dominate.
Good signs
- You can keep ribs and pelvis stacked.
- The effort feels controlled and repeatable.
Warning signs
- Lower-back pain or hip pinching.
- You lose position early and keep forcing reps.
Progressions
Make it easier
- Use a shorter range or more stable position.
- Break the set into smaller clusters with crisp reps.
Make it harder
- Increase range, lever length, or hold time gradually.
- Add a pause at the hardest position.
Best alternatives
Plank
Simple anti-extension work that is easy to scale.
How to Perform
- Lie on your back with arms pointing straight up and knees bent at 90 degrees (shins parallel to the floor)
- Press your lower back firmly into the floor and brace your core
- Slowly extend one arm behind you and the opposite leg forward simultaneously
- Only go as far as you can while keeping your lower back pressed to the floor
- Return to start and repeat on the other side
Tips
- Keep your lower back pressed into the floor the entire time — if it lifts off, you have gone too far and need to reduce the range
- No equipment needed — to progress, hold a light dumbbell or wear ankle weights; to make easier, move only one limb at a time
- Use a very slow 3-4 second extension and 3-4 second return — this is a control exercise where speed is the enemy
- Moving too fast and letting the lower back arch off the floor is the most common mistake — slow down dramatically
- Feel your deep core muscles working to keep your spine stable as your limbs extend — you should feel a strong brace in your lower abs, not strain in your lower back
Essential Equipment
| Equipment | Why You Need It | Our Pick | Review |
|---|---|---|---|
| Exercise Mat | Cushions your spine and tailbone on the floor | Yoga Mad Studio Mat | Read Review |
Frequently asked questions
Is the Dead Bug good for beginners?
Yes, as long as you choose a version and load you can control. Start conservatively, learn the setup, and only progress when the target muscles are doing the work without joint discomfort.
How heavy should I go on the Dead Bug?
Use a weight that leaves 1-3 good reps in reserve for most working sets. If your range shortens, momentum increases, or you stop feeling the target muscles, reduce the load.
What can I use if the bodyweight version is too difficult?
Use one of the listed alternatives that trains the same pattern. The exact tool matters less than matching the movement, controlling the rep, and progressing gradually.
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