Related Experiment Video
Updated: Oct 13, 2026

Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves
Published on: August 23, 2011
Pressure relief characteristics of an alternating pressure system
Abstract:
The pressure relieving characteristics of an alternating pressure mattress are compared to the characteristics of a traditional hospital mattress. The trochanteric pressures of 20 healthy volunteers had a mean of 95 (SD = 49) on a hospital mattress while the trochanteric pressures on the alternating pressure mattress had a mean of 67 (SD = 9) for the inflated cells and a mean of 23 (SD = 7) for the deflated cells. Statistical analysis revealed significantly lower interface pressure for the alternating pressure mattress.
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