The pedynograph: a clinical tool for force measurement and gait analysis in lower extremity amputees

The pedynograph is a simple, inexpensive piece of equipment which can be used in the clinical setting to monitor amputee gait. Strain gauges applied to the pylon of a modular prosthesis and incorporated in an appropriate electrical circuit provide measurements of axial load which are displayed on an oscilloscope during ambulation. Preliminary experience with the described equipment has shown that it is of value in monitoring and regulating weight bearing in patients with healing or maturing stumps or impairment of stump sensation. Gait and prosthetic problems can be analyzed, their correction documented and a permanent record of amputee performance provided.