Plank

Also called: front plank, forearm plank

Hold a straight body on your forearms and toes.

  • First day in a gym
  • Core
  • no equipment

Holding a straight line: core working.

Main: core Also: shoulders, glutes

Simplified illustration. Follow the steps and cues for exact form.

Main muscles
core
Equipment
None
Level
First day in a gym
Pattern
Core

Wear and bring

  • A mat or folded towel under your knees, back or hands.

What to wear and bring to the gym

Key cues

  1. Elbows under your shoulders.
  2. Squeeze your glutes and brace your stomach.
  3. Straight line from head to heels; breathe normally.

How to do it

  1. Lie face down, forearms on the floor, elbows under your shoulders.
  2. Lift your hips so your body is straight from head to heels.
  3. Hold for 20–30 seconds to start (or the time in your program), breathing normally. Stop early if your hips start to sag.
  4. Too hard? Do it on your knees.

Common mistakes

Common mistakeFix
Hips sag or pike upSqueeze your glutes. End the set when you can't hold the line.
Holding your breathBreathe in short breaths while keeping your stomach braced.

Stop if

Stop if you feel sharp or pinching pain in your lower back or shoulders, numbness or tingling, or pain that gets worse with each rep. Burning in the working muscles, heavy breathing and shaky last reps are normal effort.

Related: lower back.

By equipment

No equipment needed, so this works the same with every setup.

General information, not medical advice. If you have an injury, a health condition or are pregnant, check with a doctor or physical therapist before starting.