Bio Mechanical corrective devices

A method of manufacture of an orthotic comprising the steps of:

• taking an imprint of the foot;
• making a positive cast of the foot from the imprint;
• measuring angles of contact of the cast to determine the degree of forefoot roll and heel roll;
• forming the orthotic by moulding material to the cast;
• shaping the underside of the orthotic by angling the heel and forefoot regions to correct heel roll and forefoot roll of the foot;
• and
• detaching the orthotic from the cast, wherein the step of taking the imprint of the foot includes
• having a subject seated at a height such that the leg is bent at the knee at an angle of knee flexion of greater than 90 degrees with the foot contacting the ground,
• positioning the knee whereby the knee is facing forward in the sagittal plane, as determined by moving the knee through its normal range of movement, which will position the upper leg in correct alignment with respect to the hip and torso,
• positioning the lower leg vertically, the heel directly below the knee from a side on view, with both feet straight ahead and parallel with respect to one another, and
• positioning the ankle join in correct alignment as determined visually.