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Direction-of-travel diagram for the anti extension pattern. Photography for the RKC Plank is not shot yet.
CalisthenicsIn review

RKC Plank

A forearm plank with deliberate abdominal and glute tension.

This page is a working draft. A coach has not reviewed it, so read it as a starting point, not as checked instruction.

Pattern
Anti extension
Modality
Calisthenics
Difficulty
Beginner
Mechanic
Unknown
Force
Unknown
Laterality
Bilateral
Impact
Low
Trains where
Gym, Home
At home
Yes

How to do it

Set up

  1. Set the elbows under the shoulders and support the body on the forearms and toes.

Do the rep

  1. Tighten the glutes and abdomen while keeping the ribs down.
  2. Gently draw the elbows toward the feet without moving them.
  3. Keep breathing, then lower the knees to end the hold.

What counts as a rep

Count only the time held in a straight body line with deliberate trunk tension and steady breathing.

Count only the time held in a straight body line with deliberate trunk tension and steady breathing.

Breathing

Breathe slowly and steadily through the hold; do not hold your breath.

Cues

  • Squeeze the glutes.
  • Keep breathing through the tension.

Common mistakes

  • Holding the breath

    What you seeBreathing stops as the body becomes tense.

    FixReduce the effort enough to breathe or end the hold.

    The hold should remain controlled without a prolonged breath hold.

Stop the set if

  • Stop if you feel sharp pain.
  • End the hold when the hips sag or breathing stops.

General educational content, not individual coaching or medical advice.

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