Exercises

User Guide

Regain Strength, Flexibility, and Performance - The ProStretch® Shoulder Flex is designed to help restore strength and improve flexibility in the shoulder and rotator cuff muscles.

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iMPORTANT iNFORMATION

For Best Results

Prior to use, we strongly encourage you to consult your physical therapist or doctor for proper use and guidance of your condition.

Shoulder Flex™ should be set up specifically for right or left arm stretching.
Never stretch to the point of pain.
To avoid hyperextension of shoulder, do not attempt to stretch past a “normal range of motion.” Start in an unstretched neutral position then gradually increase the range of motion using the Leverage Application Bar.

For External and Internal Shoulder Stretching and Strengthening

The ProStretch® Shoulder Flex is designed to help restore and improve strength and flexibility in the shoulder and rotator cuff muscles. Its unique leverage-based design lets users gently apply controlled tension in multiple positions, targeting specific muscles safely and effectively.

Whether recovering from surgery, rehabbing after injury, or looking to enhance athletic performance, the Shoulder Flex helps you regain range of motion, reduce stiffness, and improve overall shoulder health.

Table of Contents:

Exercises for Stretching and Flexibility
Exercises for Strengthening using the Shoulder Flex Resistance Connection Endcap
Pro Tips

FOR STRETCHING

Shoulder Flex allows users to stretch the shoulder and rotator cuff muscles without the assistance of another person. Shoulder Flex provides optimal stretching for various arm sizes. The Shoulder Flex can conveniently be taken anywhere to be used daily.

View the step-by-step instructions (PDF) - Left Arm | Right Arm

Stretch #1: External Rotation - Moderate Adducted

Stretch #2: External Rotation - Advanced Abducted

Stretch #3: Internal Rotation - Moderate Abducted & Advanced Adducted

FOR STRENGTHENING

Strengthening using the Shoulder Flex + Resistance Connection Endcap

This video will show you how to use the ProStretch® Shoulder Flex with the Resistance Endcap and a resistance band to strengthen your shoulder safely. Strengthening helps stabilize your shoulder joint, protect it from injury, and support everyday movements or athletic activity.

These exercises use the same positioning you practiced during stretching, but the focus now shifts from mobility to controlled resistance strengthening.

Pro Tips & FAQs

One-Year Limited Manufacturer’s Defect Warranty.

Visit our Warranty Information page to register and activate your one-year warranty, and receive updates on news and promotions.

Limited Warranty

This program instruction manual and reference materials are sold “as is” without warranty on their performance, merchantability, or fitness for any particular purpose. The entire risk as to the results and performance of this product is assumed by you specifically by way of example but not limitation; in the event that you have a history of medical conditions, muscular disorders, deformities or are not in good health, you should consult with your physician before using this product.

However, to the original purchaser only, the manufacturer warrants the product to be free from defects in materials and faulty workmanship under normal use for one-year from the date of purchase. If the product becomes defective during this one-year period, it may be returned to the manufacturer for a replacement without charge with proof of purchase of the product. Only the original purchaser must complete the Product Warranty Registration Form to register Shoulder Flex for a one-year warranty.

The manufacturer makes no other warranties, expressed or implied, relating to the product, including any implied warranties of merchantability or fitness for a particular purpose, shall not be liable for indirect, social, or consequential damages resulting from the use of this product.

WARNING: Consult your physician before beginning this or any other exercise program. The equipment is intended to be used only in manner shown/illustrated/described. Always follow instructions. Misuse of the equipment may result in injury. For adult use only. Do not use if the equipment is damaged or worn.