JudgeG. W. (1978) British Patent application number GB 2014855A, priority date 13 February 1978.
2.
RalstonH. J. (1964) Effects of immobilisation of various body segments on the energy cost of human locomotion. Proceedings of the 2nd IEA Congress, Dortmund, 1964; Ergonomics (supplement), 1965 53–60.
3.
WatersR. L.PerryJ.AntonelliD.HislopH. (1976) Energy cost of walking of amputees: The influence of level of amputation. J. Bone Jt Surg., 58A, 1, 42–46.
