One-Arm Front Plank
The forearm plank with one hand at a time taken off the floor and set on the lower back; the trunk refuses to twist toward it.
How to do it
Setup
Forearm plank, elbows under the shoulders, feet a little wider than the hips.
Steps
- Lift one hand and rest it on the lower back.
- Hold the hips square on the single forearm.
- Put the hand down and switch arms for the time.
Common mistakes
Hips rotating open as the hand leaves: widen the feet and brace. Shoulder sinking into the supporting elbow: push the forearm into the floor. Lifting the hips high to make it easier: keep the body in one line.
Breathing
Steady throughout; never held.






