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  3. Exercises
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  5. Chest
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  7. Bent Arm Chest Stretch

Exercise guide

Bent Arm Chest Stretch

  • Beginner
  • Isolation
  • Timed hold
  • Chest
  • Shoulders

This unilateral stretch targets the pectoralis major and anterior deltoids to improve shoulder mobility and counteract rounded-shoulder posture. The 90-degree arm bend focuses the tension directly on the chest fibers rather than the biceps or distal tendons.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Bent Arm Chest Stretch demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Pectorals

Secondary

  • Serratus anterior

Equipment

  • Body weight

Setup

  1. Stand perpendicular to a wall or doorframe with your feet in a staggered stance.
  2. Bend your target arm to 90 degrees and place the entire forearm and palm flat against the wall.
  3. Position your elbow so it is level with or slightly above your shoulder height.

How to do it

  1. Exhale as you slowly rotate your torso away from the wall while keeping the forearm pinned firmly in place.
  2. Lean your body weight slightly forward into the staggered leg until you feel a deep stretch in the chest and front shoulder.
  3. Hold the position for 30 seconds, maintaining deep, rhythmic diaphragmatic breathing.
  4. Slowly release the tension by rotating back toward the wall and repeat on the opposite side.

Form checklist

  • Keep your shoulder blade pulled back and down, avoiding the tendency to shrug.
  • Ensure the elbow stays at a 90-degree angle to maximize pectoral tension.
  • Maintain a neutral spine and avoid arching your lower back during the rotation.
  • Rotate your entire torso as one unit rather than just twisting your neck.

Pro tips

  • To target the lower pectoral fibers, slide your elbow slightly higher on the wall; to target the upper fibers, move it slightly lower.
  • Focus on the mind-muscle connection by imagining your chest muscle lengthening with every exhale.

Make it harder

  • Incorporate PNF stretching by pressing your forearm into the wall with 20% effort for 5 seconds, then relaxing and moving deeper into the stretch.
  • Perform the stretch with a slight forward lean of the entire torso to increase the leverage on the shoulder joint.

Frequently asked

What muscles does the bent arm chest stretch work?
The bent arm chest stretch primarily targets the pectorals, and also works the serratus anterior as secondary muscles.
What equipment do you need for the bent arm chest stretch?
The bent arm chest stretch requires no equipment — just your body weight.
Is the bent arm chest stretch good for beginners?
Yes. The bent arm chest stretch is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • Air Punches MarchBeginner · calves, pectorals, and quadriceps
  • Alternate Front Kick In Place With Arm CirclesBeginner · abs, calves, deltoids, and pectorals
  • Archer Push-UpAdvanced · pectorals
  • Arm CrossoverIntermediate · deltoids and pectorals

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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