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Exercise Library

How to Do a Dead Bug

In short

The dead bug has you lie on your back and slowly extend opposite arm and leg while keeping your lower back pressed to the floor. It teaches deep core control without straining the spine, making it one of the safest and most useful core exercises for beginners.

Written & reviewed by M. Thurairaj & team, Registered Physiotherapist & Certified Trainers
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The dead bug looks gentle, but it teaches a skill most people lack: keeping the spine still while the arms and legs move. That control is what protects your back during real lifts, and it is why we use dead bugs so often with beginners.

You only need floor space, so it fits any bedroom or our Putra Heights centre. It is back-friendly and low-risk, so it suits people easing into training or rebuilding core control after time off.

What it trains and who it suits

It trains the deep core to keep the lower back flat while the limbs move. It suits beginners, people with back concerns cleared to train, and anyone wanting better control for heavier lifts.

Because you are on your back with support, there is minimal spinal load, making it a safe way to build genuine core strength.

Step-by-step cues

  1. Lie on your back, arms up and knees bent over the hips
  2. Press your lower back flat into the floor
  3. Slowly lower one arm and the opposite leg toward the floor
  4. Stop before your back arches off the ground
  5. Return and repeat with the other arm and leg

Common mistakes and quick fixes

  • Lower back arching up, press it down and shorten the range
  • Moving too fast, go slowly to keep control
  • Holding the breath, exhale as you extend the limbs
  • Same-side arm and leg, always use opposite arm and leg

Regressions, progressions and when to stop

Too hard? Move only the legs or only the arms at first. Too easy? Slow it further, add light weights, or hold at the end range. At home the floor is enough; at our centre we add resistance and tempo for more challenge.

  • Stop if you feel sharp low-back pain rather than core effort
  • See a professional if your back keeps arching no matter how slow you go

Frequently Asked Questions

Why does my lower back keep lifting off the floor?+

Your range is too big for your current control. Move the limbs less far, press your back firmly down, and only extend as far as you can keep the back flat.

Are dead bugs enough for a strong core?+

They build excellent deep-core control, which underpins everything else. Pair them with planks and carries for a complete, well-rounded core program.

How many should I do?+

Two or three sets of six to ten slow reps per side is plenty. Control and a flat back matter far more than speed or high numbers.

Can I do dead bugs with back pain?+

They are often recommended because they are gentle, but only if pain-free and cleared. Keep the range small and controlled, and see a professional for ongoing pain.

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