Comparing the interface pressure redistribution of three different types of cushions: differences according to age groups and cushion preferences.

The participants were adults who could sit independently and had no neurological disease, so the results do not apply to people at high risk for pressure ulcers. The study measured interface pressure for 90 seconds after 5 minutes of sitting, not long-term sitting or pressure ulcer outcomes. The cushions were tested in a fixed order, and participants were not randomised, so order effects cannot be ruled out. Pressure values were surrogate measures; lower pressure does not prove ulcer prevention. Preference was a single subjective choice, and the paper does not explain why honeycomb was preferred despite memory foam having lower mean pressure values. The authors state that interpreting cushion preference using only pressure has limitations and that future studies should use BMI and weight more carefully.

Do not read the lower pressure values as proof that memory foam prevents pressure ulcers. The study measured short sitting pressure in adults who could sit independently and had no neurological disease, not people at risk for ulcers, and it did not track ulcer development.