JAS at ISPRM Summit
JAS at ISPRM Summit
JAS Launches Its New Dynamic Product Line
JAS Launches Its New Dynamic Product Line

“JAS helped me regain a range of movement after my surgery that exceeded both my surgeon and my PT's expectations.”

- D.C.B., Alexandria, VA
Superior Design.
Better Outcomes.
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The Range Of Motion Specialists

Cost Benefits: Restoring ROM Faster


Dramatically reduced treatment time coupled with substantial clinical benefits make stress relaxation and low-load stretch therapy an optimal rehabilitation choice. Its positive impact on patient compliance, cost savings and therapeutic outcomes is significant. By restoring ROM faster, JAS Systems benefits patients, employers, insurers, and the healthcare community.

JAS Reduces Rehab Time and Cost
JAS stress relaxation and low-load stretch therapy requires three 30-minute sessions per day. Patient compliance is dramatically improved for stress relaxation and low-load stretch, optimizing effectiveness and results. Patients utilizing JAS achieve maximal ROM outcomes in 2.5 months on average. Patients who use JAS are discharged from therapy earlier, and present with no loss of ROM upon one year follow-up. A recent published study demonstrated that JAS eliminated the need for release surgery in over 75% of elbow stiffness patients. Using JAS represents significant cost savings to insurers and a reduced financial burden to employers. Most importantly, it represents improved quality of life for patients with ROM loss.

JAS offers Bi-Directional Devices, Reducing DME Cost
Bi-directional devices from JAS provide full-range stress relaxation and low-load stretch therapy in both directions of joint motion. Most splint brands work in one direction only due to tensioning requirements; two such devices are required for patients with bi-directional ROM loss, doubling device costs and prolonging therapy.

JAS Frees Up Clinic Therapy Time
JAS enables patients to receive safe and effective stress relaxation and low-load stretch therapy at home. Patients achieve steady ROM gains between therapy visits, which frees clinic time for therapists to address other important rehabilitation goals (e.g. muscle strengthening, functional re-education, edema management, return to function) in the limited number of therapy sessions typically covered by insurance.

The JAS Advantage

For 20 Years, Joint Active Systems (JAS) pioneered the use of Static Progressive Stretch (SPS) to restore lost Range of Motion with strong clinical results. JAS is the market leader in SPS therapy with over 250,000 clinical patient applications. Lately we have seen numerous comparisons from the manufacturer of products utilizing PASS technology claiming performance superiority. Don’t believe what you read.

What is SPS?

Static Progressive Stretch utilizes the application of Stress Relaxation loading in a series of positional (displacement) changes. Stress Relaxation applies a stretching load to a viscoelastic material (connective tissue) to reach the displacement of a desired resistance. That displacement is held constant, so over time the connective tissue in a joint stretches and resistive loads drop (laxity). We then advance to a new point of resistance to eliminate the laxity. Once desired resistance is achieved, the new displacement is held constant until resistive load drops again. “Static Progressive Stretch” – SPS is this series of progressive repositioning against resistance. SPS mimics forces a therapist employs while manually stretching a joint. SPS is a highly efficient stretching force as shown in numerous published peer reviewed clinical studies.

What Is PASS?

Dr. Thomas Branch, the founder of ERMI (End Range Motion, Inc.), published an article in 2003 defining PASS (Patient Actuated Serial Stretch) as a dynamic stretching method. The patient applies stretching force to their extremity in brief loads to their joint ‘End Range’ utilizing an ERMI device (Branch, et al, American Journal of Orthopedics, April 2003, Mechanical Therapy for Loss of Knee Flexion). ERMI devices as described in this article generate a high torque force (up to 500 ft/lbs) via a hydraulic or pneumatic load generated by the patient pumping the machine. PASS by virtue of this description and definition of the author is a dynamic loading force. Applying shorter bursts of high intensity stretching force applied by the patient is very similar to Ballistic Stretching. The American Academy of Orthopedic Surgeons (AAOS) warns against the use of Ballistic Stretching.

The JAS Cost Advantage

Why pay more for Range of Motion Therapy? Following is a cost comparison of JAS SPS Knee and Shoulder rental costs versus PASS based therapy products:

That’s a 600% average cost differential! Make sure you know what your options are before you decide on treatment choices. JAS is the cost effective option with over 20 years of clinical success!

JAS Design Features

We feel the best model for joint therapy is a Therapist manually tractioning an extremity. JAS’s unique geometry mimics the forces and loading vectors therapists employ. JAS geometry displaces the stretching force away from the joint surface (distraction). The stretching force is applied ninety degrees to the extremity while it follows the articulation of the joint. JAS design also places the joint in a single plane with the drive tower and extremity throughout the rotation of the joint. We call this “Single Plane Positioning” It virtually eliminates joint malalignment.

Competitive designs use the joint surface as the fulcrum of forces applied to stretch the extremity, compressing the joint and articular cartilage. These compressive loads coupled with malalignment increase risk for the patient to experience discomfort and pain. Discomfort and pain result in poor patient compliance.

Stretching Force

ERMI claims in studies that SPS units are only capable of generating anywhere from 5.2 foot pounds of force 7.6 foot pounds of force. They did not test a JAS unit! In bench studies JAS knee rental units generated 85-foot pounds of resistance at the joint position before device failure. These values compare favorably with Physical Therapy at 65-foot pounds of force.

Joint Active Systems, Inc.
2600 S. Raney Street, Effingham, IL 62401
(800) 879-0117