A large percentage of patient falls in hospitals occur near the bed, and yet little is known about the impact of bed height to fall risk. This study compared joint torques and angles during bed entry and egress at two heights. Twelve elderly adults (>55 year-old) with various ailments were selected who also had variety of strength and mobility limitations. Results show that at low bed height (38 cm), hip torque for bed entry was significantly higher, and hip, knee, and ankle flexion angles were significantly smaller. A full 50% of participants were unable to get out of the low bed without assistance. The authors conclude that low bed heights, which were were designed for the elderly with a high falling risk, pose safety risks for that population.
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