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How to Hold a Plank Correctly (It's Not About the Clock)

Most planks fail through the lower back before they fail through the core. Here is the setup, the breathing, and why chasing a longer hold can work against you.

· 2 min read

Plank demonstration

The plank is often the first "core" exercise people learn, and also one of the most commonly done wrong — usually with the hips sagging and the lower back quietly taking the strain that should sit across the abs and glutes.

How to do it

  1. 1Elbows under shoulders — stack your elbows directly beneath your shoulders, forearms flat on the floor.
  2. 2Neutral spine — imagine a straight line from your head to your heels; don't let your hips sag or pike up.
  3. 3Squeeze everything — brace your abs like you're about to be poked in the stomach, and squeeze your glutes.
  4. 4Neutral neck — look at a spot on the floor a little ahead of your hands; don't crane your neck up.
  5. 5Breathe — keep breathing normally through the hold — holding your breath doesn't make the brace stronger.

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Sets and reps

Three sets of a 20–40 second hold with good form beats one shaky two-minute hold. Once 40 seconds is easy with a flat back, add difficulty — a shoulder tap, a slow leg lift — rather than only chasing time.

Common mistakes

  • Sagging hips. The lower back arches and absorbs load meant for the abs. Squeeze the glutes and tuck the pelvis slightly under.
  • Piked hips. Pushing the hips up shortens the hold time and turns it into a stretch, not a brace.
  • Chasing duration over form. A minute with sagging hips trains poor posture, not core strength. Cut the hold the moment form breaks.

Safety note

Stop if you feel the hold in your lower back rather than your abs — that's a sign your hips have dropped.

A plank is a position, not a stopwatch. Get the line right first, and the time will follow on its own.

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