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  5. Chest
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  7. Body-Up

Exercise guide

Body-Up

  • Intermediate
  • Compound
  • Rep-based
  • Back
  • Chest
  • Shoulders
  • Waist

The Body-Up is a challenging bodyweight exercise that targets the triceps and core by transitioning from a forearm plank to a high plank using arm extension. It builds significant upper body pushing strength and isometric core stability through a unique leverage-based movement.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Body-Up demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Triceps

Secondary

  • Obliques
  • Serratus anterior

Equipment

  • Body weight

Setup

  1. Start in a forearm plank position with your elbows directly under your shoulders and forearms flat on the ground.
  2. Place your palms flat on the floor, positioned slightly ahead of where your elbows are resting.
  3. Engage your core and glutes to create a straight line from your head to your heels, with feet hip-width apart.

How to do it

  1. Exhale and press firmly through your palms to lift both elbows off the floor simultaneously until your arms are fully extended.
  2. Inhale and slowly lower your elbows back to the starting position in a controlled manner, resisting gravity.
  3. Maintain a steady 2-0-2-0 tempo, taking two seconds to rise and two seconds to lower without pausing at the bottom.

Form checklist

  • Keep your back flat and avoid arching the lower back or sagging the hips.
  • Ensure both arms move at the exact same time to prevent weight shifting.
  • Keep your elbows tucked in toward your ribs rather than flaring them out to the sides.
  • Maintain a neutral neck by looking at a spot on the floor just ahead of your hands.

Pro tips

  • Focus on pushing through the base of your palms to maximize triceps recruitment.
  • To increase the difficulty and triceps stretch, place your hands further forward relative to your shoulders.

Make it harder

  • Walk your hands further forward to increase the lever length and mechanical disadvantage.
  • Perform the movement with your feet elevated on a bench or step to shift more weight onto the upper body.

Frequently asked

What muscles does the body-up work?
The body-up primarily targets the triceps, and also works the obliques and serratus anterior as secondary muscles.
What equipment do you need for the body-up?
The body-up requires no equipment — just your body weight.
Is the body-up good for beginners?
The body-up is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Barbell Pullover-To-PressIntermediate · deltoids, pectorals, and triceps
  • Bodyweight Front SlamIntermediate · lats, pectorals, and triceps
  • Bodyweight Standing Military PressBeginner · deltoids and triceps
  • BurpeeIntermediate · abs, glutes, hamstrings, pectorals, quadriceps, and triceps

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

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