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Planks: Quiet Core, Loud Payoff

A forearm plank trains the trunk to stay rigid. It supports bracing on squats, hinges, and presses without adding another joint to babysit.

Forearm plank: set up with a straight line, hold with core tight, and repeat quality holds — Plank movement illustrations

The prescription

Sets: 3 sets
Reps: 20–45 sec holds
Rest: 45 sec
Time: About 6 min

Equipment. Bodyweight, Mat

Muscles. core. Also shoulders, gluteus maximus

Starting position

Forearms on the floor, elbows under the shoulders.
Legs extended with toes on the mat. Body is one straight line.

How to move

Push the floor away and squeeze the glutes lightly.
Keep the ribs down and the neck neutral.
Hold for time or breathe through controlled reps of knee taps if prescribed.
Stop when the hips sag or pike.

Common mistakes

Letting the hips drop toward the floor.
Holding the breath until you turn purple.
Looking up and cranking the neck.

Variations

Side plank
Dead bug

Progressions

Longer holds
Shoulder taps

Regressions

Knee plank
Elevated hands on a bench

Safety

Stop if you feel sharp pain, joint pinch, or symptoms that are not ordinary muscle effort.
This is general technique education, not a personal clearance to train through an injury.
Wrist issues? Use forearms or push-up position on handles.

All Cheeked Up publishes general fitness education. It is not medical advice, physical therapy, or a promise that your body will change. Stop any exercise that causes pain and talk with a qualified professional about injuries, pregnancy, or health conditions before you train.

Related exercises

Programs that use it

The Cheek Starter