A Biomechanical Assessment of Stepping into and out of a Bathtub using a Temporary Rim-mounted Grab Bar

Abstract

Temporary rim-mounted grab bars are often recommended when installing a permanent grab bar is not feasible; however, their safety and effectiveness is unknown. This thesis explores the effect of using a rim-mounted grab bar for assistance as 10 older adults with bathing difficulty stepped into and out of the bathtub. Compared to the low and high rim- mounted grab bars, the vertical grab was safer and more effective at reducing task demands and preferred by participants. The high rim-mounted grab bar may reduce some task demands compared to low. Further research is required to investigate whether rim-mounted grab bars can withstand forces applied during use. Four participants refused to step into and out of the bathtub using only the wall. A summary of lower limb joint angles across all conditions provides insight into range of motion requirements to complete the task. Findings may inform clinical recommendations, grab bar design, and standards.