Socket/stump interface dynamic pressure distributions recorded during the prosthetic stance phase of gait of a trans-tibial amputee wearing a hydrocast socket

P. Convery, A. W. P. Buis

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Force sensing resistors (FSR) have been used to measure dynamic stump/socket interface pressures during the gait of a trans-tibial amputee. A total of 350 pressure sensors were attached to the inner wall of a hydrocast socket. Data were sampled at 150Hz during approximately 0.8 seconds of prosthetic stance of gait. The dynamic pressure distributions within a hand cast socket reported by Convery and Buis (1998) are compared with those monitored within a hydrocast socket for the same amputee. The pressure gradients within the hydrocast socket are less than that of the hand cast Patellar-Tendon-Bearing (PTB) socket. The proximal 'ring' of high pressure in the hand cast PTB socket is replaced with a more distal pressure in the hydrocast socket.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalProsthetics and Orthotics International
Issue number2
Publication statusPublished - Aug 1999


  • force sensing resistors
  • dynamic stump/socket interface
  • trans-tibial amputation
  • hydrocast socket
  • dynamic pressure distribution
  • hand cast socket

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