Journal
JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT
Volume 48, Issue 10, Pages 1231-1247Publisher
JOURNAL REHAB RES & DEV
DOI: 10.1682/JRRD.2010.11.0219
Keywords
accommodation; amputee; diurnal; elevated vacuum; lower limb; prosthetic fit; prosthetics; residual limb; suction; volume change
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Funding
- National Institutes of Health [NIH R01HD060585]
- EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT [R01HD060585] Funding Source: NIH RePORTER
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Bioimpedance analysis was used to measure the residual limb fluid volume of seven transtibial amputee subjects using elevated vacuum sockets and nonelevated vacuum sockets. Fluid volume changes were assessed during sessions with the subjects sitting, standing, and walking. In general, fluid volume losses during 3 or 5 min walks and losses over the course of the 30 min test session were less for elevated vacuum than for suction. Numerous variables, including the time of day that data were collected, soft tissue consistency, socket-to-limb size and shape differences, and subject health, may have affected the results and had an equivalent or greater effect on limb fluid volume compared with elevated vacuum. Researchers should well consider these variables in the study design of future investigations on the effects of elevated vacuum on residual limb volume.
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