Abstract: A physical therapy chair. Implementations may include a seat bottom coupled to a chair base adjustable along a z axis. A seat back couples to the seat bottom at an angle to the axis. An arm support slidably couples to the seat back and is fixable at desired positions. An arm has first, second, and third arm portions. The first arm portion pivotally couples to the arm support, the second arm portion rotatably couples to the first arm portion, and the third arm portion rotatably couples to the second arm portion. A leg couples to the seat bottom and has upper and lower leg portions. The upper leg portion has an upper first portion and an upper second portion. The upper first portion pivotally couples to the seat bottom and slidably couples to the upper second portion which slides thereby to change a length of the upper leg portion.