JAS® SPS (Static Progressive Stretch) Systems comfortably and effortlessly stretch beyond what is possible with the competition. The key to success is in product design. Our patented JAS Motion Tower™ design unloads the joint, eliminating painful compression. JAS geometry applies soft tissue distraction and stretch loads 90˚ to the extremity through the entire range of motion. JAS systems deliver pain-free, patient-directed ROM therapy through a greater arc of motion than any other brand of stretch device.

Kinex Medical Company carries the full line of JAS SPS devices for: shoulder, elbow, pro/sup, wrist, knee & ankle

JAS® SPS Elbow

The JAS Elbow system utilizes proven principles of Static Progressive Stretch (SPS) to achieve permanent restoration of joint ROM in three 30-minute sessions per day. The patient-controlled JAS protocol allows for pain-free therapy, virtually eliminating muscle guarding and assuring excellent compliance.

Elbow SPS


The JAS SPS Knee offers Range of Motion (ROM) therapy from 160° flexion to 21° hyperextension in a new, light-weight design. A patented motion tower, combined with infinitely adjustable ROM, assures precise end-range stretch throughout the entire treatment session. Maximal Total End Range Time (TERT) is achieved for optimal therapeutic benefit.

The JAS SPS Knee has been designed with a new, lower leg stabilizer. The new pivot point above the calf allows the cuff to remain flush with the tibia as the knee angle changes through the range of motion, helping to eliminate point loading. Contoured cuffing system optimizes fit, comfort and product performance.

Knee SPS