The JAS Pronation-Supination 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.

  • 110° pronation
  • 130° supination

Effective for Use Following

  • Elbow Fractures
  • Radial Head Fractures
  • Wrist Fractures
  • Tendon/Ligament Repairs
  • Crush Injuries
  • Burns

JAS SPS ProSup devices are also available in child sizes as a part of our JAS Pediatric product line.


  • Triangular tower design
  • 30-minute treatment sessions
  • Custom cuffing
  • Bi-directional ROM provided in all devices
  • Patient-controlled, infinitely adjustable ROM
  • Easy to apply and simple to use


  • Eliminates joint compression
  • Dramatically reduced treatment time ensures excellent patient compliance
  • Optimal comfort and accurate stretch eliminates risk of skin breakdown
  • Saves cost; full range stress relaxation therapy in one device
  • Assures precise and pain-free end-range stretch; eliminates muscle guarding
  • Fosters compliance and results