a vertical support comprising a proximal end and a distal end, the proximal end comprising a horizontal seat for positioning beneath a user's hip to support the user's thigh in a horizontal position and a seat attachment member to secure the user's thigh to the horizontal seat;

the distal end of the vertical support comprising a foot; and

a horizontal support extending from the vertical support between the proximal end and

the distal end of the vertical support, the horizontal support comprising a first end and a second

end, the first end attached to the vertical support and the second end comprising a calf support member, the calf support member comprising attachment means to secure a lower leg of a user to the calf support member, such that the user's leg is bent at about a 90 degree angle,

the calf support member being substantially vertical and substantially parallel to the vertical support, and having a curved surface to support the user's calf, and

wherein a user's foot and ankle is not secured to the vertical support, the horizontal support, and/or the calf support member such that the user's foot and ankle remain free.