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Safety enhancements of home lift, position and rehabilitation (HLPR) chair

According to recent studies published in AI Magazine (2005), in 2000, "people aged 65 and older made up 12.3 percent of the U.S. population, while by 2030, they will constitute 19.2 percent, after which growth is projected to level off so that this cohort represents 20 percent of the population in 2050." In response to respective needs, the National Institute of Science and Technology (NIST), Intelligent Systems Division, began the Healthcare Mobility Project to address this healthcare issue of patient lift and mobility, and began developing the Home Lift, Position, & Rehabilitation (HLPR) chair to investigate specific areas of mobility and rehabilitation. The HLPR chair has been built as a prototype but a significant number of unresolved issues exist and are being researched. The objective of this particular project is to investigate the computer and software safety issues in the design, implementation and use of the HLPR chair.