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  7. Suspender Plank

Exercise guide

Suspender Plank

  • Intermediate
  • Compound
  • Timed hold
  • Back
  • Chest
  • Shoulders
  • Waist

The Suspender Plank uses an unstable base to intensify core recruitment, forcing the abs, glutes, and obliques to work harder to maintain spinal alignment. It is a premier movement for building functional stability and anti-extension strength.

Reviewed by the Crucible team · Updated June 2026

Watch the Suspender Plank demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Abs
  • Obliques

Secondary

  • Deltoids
  • Lats
  • Serratus anterior
  • Triceps

Equipment

  • Suspension trainer

Setup

  1. Adjust the suspension straps so the foot cradles are at mid-calf height.
  2. Place your feet or toes securely into the cradles while facing away from the anchor point.
  3. Position your forearms on the floor directly under your shoulders, or use a high-plank position with hands flat.

How to do it

  1. Exhale and lift your knees off the ground, extending your legs until your body forms a straight line from head to heels.
  2. Squeeze your glutes and brace your midsection aggressively to lock your pelvis in place.
  3. Maintain a steady, rhythmic breathing pattern while holding the isometric contraction.
  4. Lower your knees back to the floor with control once the set is complete.

Form checklist

  • Avoid letting your lower back arch or your hips sag toward the floor.
  • Keep your shoulder blades spread apart (protracted) rather than letting them collapse together.
  • Maintain a neutral neck by looking at the floor slightly in front of your hands.
  • Keep constant tension on the straps by pushing your heels or toes firmly into the cradles.

Pro tips

  • Actively pull your elbows toward your feet to create a 'lat-wrap' effect, significantly increasing core tension.
  • Focus on a posterior pelvic tilt—tucking your tailbone—to fully engage the lower abdominals.

Make it harder

  • Add a 'Body Saw' movement by rocking your body 2-3 inches backward and forward while holding the plank.
  • Transition into a 'Suspension Pike' by driving your hips toward the ceiling while keeping your legs straight.

Frequently asked

What muscles does the suspender plank work?
The suspender plank primarily targets the abs and obliques, and also works the deltoids, lats, serratus anterior, and triceps as secondary muscles.
What equipment do you need for the suspender plank?
The suspender plank uses suspension trainer.
Is the suspender plank good for beginners?
The suspender plank is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Behind The Head Ball SlamIntermediate · abs, calves, lats, obliques, and pectorals
  • Body Saw PlankIntermediate · abs, lats, and obliques
  • Burpee TwistIntermediate · abs, calves, glutes, hamstrings, obliques, and quadriceps
  • Crocodile CrawlAdvanced · abs, hamstrings, obliques, pectorals, and trapezius

Train this with a plan, not guesswork

Crucible builds the suspender plank into a precise program around your body, equipment, location, and time.

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