Influence of Grab Bar Orientation on Balance Recovery following a Perturbation during Bathtub Exits

Abstract

Grab bars are recommended to assist bathing transfers; however, little evidence on their effectiveness for fall prevention exists. The objective was to explore how grab bar orientation impacts balance recovery during transfers (exit). A low horizontal grab bar, high horizontal grab bar, and vertical grab bar were evaluated. Ten younger adults reached to grasp the grab bar following perturbations (YA RTG) and the remaining younger and older adults used it proactively (YA HIP, OA HIP). Findings showed significantly high downward and resultant loads were applied on the low horizontal grab bar. There were no significant differences in loading between the high horizontal and vertical grab bar, other than in downward forces. Grasping condition, but not age, impacted loading and balance control. The YA HIP group applied significantly higher forces and displayed greater balance control than the YA RTG group. Findings can inform clinical recommendations and standard developments on grab bars.