The Use of Plantar Insole Pressure Sensors to Predict the Free Torque Produced at the Shoe-Surface Interface During Internal Rotation of the Body Relative to a Planted Foot

High ankle sprains are commonly associated with injury to the distal tibiofibular syndesmotic ligaments and represent a more disabling problem for athletes than other ankle sprains [1]. This injury is associated with excessive internal rotation of the body relative to a planted foot [2]. Torsional traction between the shoe and the playing surface is a factor in these injuries [3].