Knee Plank

Muscles worked: Abs & Core · Also: Legs

To do a knee plank, set your forearms on the floor with your elbows under your shoulders, rest your knees on the floor, and hold your body in a straight line from head to knees, keeping your hips level.

Set your elbows under your shoulders, walk your knees back until your body forms a straight line from head to knees, and brace your stomach. It is a genuine plank — hold it with the same straight-line standard, and move to the full version when you can hold this one comfortably.

How to do it

1. Set your forearms on the floor with your elbows under your shoulders.
2. Rest your knees on the floor and walk them back until your body forms a straight line from head to knees.
3. Brace your stomach and keep your hips level.
4. Breathe normally and hold the line.
5. It is a genuine plank — hold it with the same straight-line standard, and move to the full version when you can hold this one comfortably.

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Programs that include it

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General fitness information only, not medical advice. Stop if an exercise causes pain, and talk to a doctor before starting a new workout routine if you have a health condition.