Grab Bar Grasp Location During Bathtub Exit and Sit-to-Stand Transfers: Biomechanical Evaluation.
Iris C Levine, Konika Nirmalanathan, Roger E Montgomery and 1 others
PMID 40694815WHAT IT FOUND
Grasp height varied with bar angle and was related to body height.
During a simulated balance disturbance, younger adults grasped lower on the vertical bar than during normal exit. No age difference was observed.
Key findings
01During sit-to-stand from a bath seat, grasp height changed with grab bar orientation, with vertical bars grasped highest and angled bars grasped lower.
02When younger adults reached to grasp during a perturbed bathtub exit, they placed their hand lower on the vertical grab bar than on unperturbed trials.
03No age difference in grasp location was observed in the comparisons made.
STILL TO COME
How it was doneWhat they foundWhat it means for OTs
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What it does not show
The exit and sit-to-stand groups were different participants, so the study did not compare the same people across both tasks. Older adults were not exposed to the perturbation used for younger adults, so the study cannot show how older adults grasp during a sudden balance disturbance. The study did not measure shoulder range of motion, whole-body movement, forces, balance outcomes, slips, or falls. All participants were healthy adults who could bathe independently, so the results may not apply to people with mobility challenges, pain, or assistive device needs. Children were not included, so the suggested height limits may not apply to them. The bathroom was a laboratory setup, so grasp choices in a familiar home bathroom may differ.
Declared interests
The authors declared no conflicts of interest.
The easy way to misread this
Do not conclude that the suggested grab bar placement is safe or effective for preventing falls in older adults. The perturbation was tested only in younger adults, and the study measured grasp location, not falls.