-transparent.png){kind=logo}
We have developed a portable microprocessor-based data-acquisition system to measure discrete plantar pressures within the shoe from ambulatory subjects. The system offers improved accuracy, repeatability, portability, and flexibility not available in current commercial systems. It consists of 14 conductive polymer pressure sensors, 14 analog amplifiers, an 8-bit analog-to-digital converter, a microprocessor, 120 kbytes of memory space, and a parallel I/O interface. Seven pressure sensors are embedded within each insole and located at the posterior heel, anterior heel, the four metatarsal heads, and hallux of each foot. The system is capable of continuously sampling 14 channels of pressure data for 7 min at a 20-Hz sample rate. The recorded data are downloaded into a microcomputer for further processing, analysis, and display. Foot pressures have been acquired from a sensate subject during multiple walking trials.
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
April 1997,
Journal of rehabilitation research and development,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
November 1995,
Medical & biological engineering & computing,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
November 1978,
The Review of scientific instruments,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
February 1984,
Pflugers Archiv : European journal of physiology,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
September 1990,
IEEE transactions on bio-medical engineering,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
January 1987,
Medical & biological engineering & computing,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
March 1983,
Medical & biological engineering & computing,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
November 1977,
Journal of medical engineering & technology,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
March 1996,
IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society,
H S Zhu, and
G F Harris, and
J J Wertsch, and
W J Tompkins, and
J G Webster
May 1982,
Cytometry,
