Preschool / Primary. The Theradapt Posture Chair, Developed By Beverly Richardson, Pt, Positions The Child In A Stable Semi-kneeling Position. It Features A 10? Angled Adjustable Seat With Pelvic Strap And Lumbosacral Support, And Adjustable Kneel Pads With Foot Straps. The Pelvic And Lower Extremity Positioning Provided By The Chair Inhibits Lower Extremity Extension, Helps The Child Achieve An Erect Trunk, And Frees The Upper Extremities For Function. The Posture Chair Is Especially Effective For Children With Tight Hamstring Muscles Or Contractures At The Ankle/foot.the Chair Does Not Increase Tightening Of The Hamstring Muscles But Rather It Eliminates Their Devastating Effect On The Pelvis In Sitting. The Posture Chair Is Not Designed For Users With Either A Fixed Thoracic Kyphosis Or Scoliosis, A Limited Hip Range Of Motion, Or A History Of Hip Dislocations. It Should Be Evaluated By A Licensed Therapist And The User Should Be Monitored For Fatigue Secondary To The Dynamic Nature Of The Chair.for Users With Significant Foot Deformities Or Strong Foot Reflexes, The Foot Straps Can Be Rotated 90? And Used Over The Calf Instead.