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  7. Stick Assisted Lying Supine Shoulder Flexion

Exercise guide

Stick Assisted Lying Supine Shoulder Flexion

  • Beginner
  • Compound
  • Rep-based
  • Back
  • Shoulders
  • Upper arms
  • Waist

This mobility exercise improves shoulder overhead range of motion and flexibility in the lats and pectorals by using a stick to guide the arms through a controlled arc. It is an essential movement for restoring shoulder health and improving overhead mechanics.

Reviewed by the Crucible team · Updated June 2026

Watch the Stick Assisted Lying Supine Shoulder Flexion demonstrationGuided video and your full workout live in the Crucible app.

Muscles worked

Primary

  • Deltoids
  • Lats

Secondary

  • Abs
  • Obliques
  • Serratus anterior

Equipment

  • Body weight

Setup

  1. Lie flat on your back on a mat with your knees bent and feet flat on the floor to stabilize your spine.
  2. Grasp a stick or PVC pipe with an overhand grip, hands spaced shoulder-width apart.
  3. Rest the stick across your upper thighs with your arms fully extended and elbows locked.

How to do it

  1. Inhale and slowly raise the stick in a wide arc toward the ceiling and then back over your head toward the floor.
  2. Lower the stick as far as your mobility allows without your lower back lifting off the ground.
  3. Exhale as you slowly reverse the movement, returning the stick to the starting position on your thighs.
  4. Maintain a controlled 3-second tempo for both the lifting and lowering phases.

Form checklist

  • Keep your lower back pressed firmly against the floor throughout the entire movement.
  • Ensure your elbows remain fully locked and do not bend as you reach overhead.
  • Keep your shoulders pulled down away from your ears to avoid shrugging.
  • Move only within a pain-free range of motion; do not force the stretch.

Pro tips

  • Focus on 'reaching' long through your arms to maximize the stretch in the lats and serratus anterior.
  • Use the stick to ensure both arms move symmetrically, preventing your dominant side from doing all the work.

Make it harder

  • Narrow your grip on the stick to increase the intensity of the stretch and the demand on shoulder mobility.
  • Pause for 3-5 seconds at the bottom of the overhead position to deepen the stretch under control.

Frequently asked

What muscles does the stick assisted lying supine shoulder flexion work?
The stick assisted lying supine shoulder flexion primarily targets the deltoids and lats, and also works the abs, obliques, and serratus anterior as secondary muscles.
What equipment do you need for the stick assisted lying supine shoulder flexion?
The stick assisted lying supine shoulder flexion requires no equipment — just your body weight.
Is the stick assisted lying supine shoulder flexion good for beginners?
Yes. The stick assisted lying supine shoulder flexion is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • Band Standing Rear Delt RowIntermediate · deltoids, lats, and rhomboids
  • Barbell Rear Delt RowIntermediate · deltoids and lats
  • Cable Twisting Overhead PressIntermediate · biceps, deltoids, erector spinae, and lats
  • Child Pose Arms RotationBeginner · deltoids, erector spinae, and lats

Train this with a plan, not guesswork

Crucible builds the stick assisted lying supine shoulder flexion into a precise program around your body, equipment, location, and time.

Download on the App Store