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 in Wisconsin and Minnesota only.

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.

Knee SPS