Abstract
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 language | English |
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Pages (from-to) | 107-112 |
Number of pages | 6 |
Journal | Prosthetics and Orthotics International |
Volume | 23 |
Issue number | 2 |
DOIs | |
Publication status | Published - Aug 1999 |
Keywords
- force sensing resistors
- dynamic stump/socket interface
- trans-tibial amputation
- hydrocast socket
- dynamic pressure distribution
- hand cast socket