Physical Design Factors Contributing to Patient Falls

Area of Science:

• Gerontology
• Healthcare Design
• Biomechanics

Background:

• Patient falls are a major concern in healthcare settings.
• Existing research often overlooks the direct link between physical room design and fall-inducing patient postures.

Purpose of the Study:

• To identify specific physical design elements in patient rooms and bathrooms that contribute to falls.
• To analyze the relationship between patient postures and environmental factors during common activities.

Main Methods:

• Utilized a physical simulation approach with 27 older adults (≥70 years) performing tasks in mock patient rooms/bathrooms.
• Captured activities using motion-capture and video recording, followed by biomechanical data processing.
• Analyzed fall-related moments through expert coding and multivariate regression models.

Main Results:

• Postural variables (turning, grabbing, pushing, pulling) were statistically significant predictors of falls.
• Specific physical elements like bathroom configuration, toilet seat height, and grab bar placement were associated with these risky postures.
• Environmental factors and personal characteristics did not show significance in multivariate models.

Conclusions:

• Patient falls are primarily caused by postural changes during interaction with the physical environment.
• Healthcare design must consider the interplay between patient postures and room elements.
• Recommendations include designing bathrooms to minimize turning and avoid combined risky movements.