Relationship between body weight, body position, support surface, and tissue interface pressure at the sacrum

Area of Science:

• Gerontology
• Biomedical Engineering
• Nursing Research

Background:

• Pressure injuries are a significant concern in long-term care residents.
• Understanding factors influencing tissue interface pressure is crucial for prevention.

Purpose of the Study:

• To investigate the relationship between body position, body weight, and tissue interface pressure.
• To compare pressure measurements across three different support surfaces.

Main Methods:

• A descriptive, comparative study involving 18 older adults (≥65 years).
• Measurement of sacral tissue interface pressure in supine, Fowler's, and semi-Fowler's positions.
• Utilized Sof. Care cushion, Biogard foam mattress, and hospital mattress.

Main Results:

• No significant difference in sacral pressure between ideal and less-than-ideal body weight subjects.
• Sacral pressure was significantly higher in the supine position compared to Fowler's and semi-Fowler's.
• Lowest mean sacral pressure observed in Fowler/semi-Fowler positions on the Sof. Care Surface.

Conclusions:

• Body positioning is a critical factor in managing sacral tissue interface pressure.
• The Sof. Care Surface may offer pressure-reducing benefits in specific positions for older adults.