Enhancing Package Ergonomics for Arthritis Consumers: A Case Study

Abstract

Because arthritis and limited dexterity affect at least 25% of the US adult population (1) and these issues can make packaging more difficult to open, there has been an overall increase in interest about inclusive packaging (2). Inclusive packaging is designed to ensure that the largest number of consumers possible will be able to open a package without serious difficulty. When designing for those with arthritis, testing is often done using simulation technologies that impair hand and joint movements, such as the Cambridge Simulation Gloves (CSG). However, not all packages have been evaluated for inclusive design, and as such, the goal of this study was to use CSG to evaluate several representative packages currently in the marketplace for inclusivity and to redesign the one deemed most challenging for those with impaired dexterity. The study evaluated product packages that were deemed non‐inclusive, identified common trends between these products, including the necessity for fine finger movements, existence of small gripping areas, and opening mechanisms with little clearance between the two surfaces. Of the products examined, a common aspirin package, was found to be the most difficult to open—it was nearly impossible to lift the seal while wearing the CSG and the package required the most time to open. As such, this product was selected to undergo redesign, and this redesign focused on the tamper evident induction seal. The redesign process involved prototyping an included finger loop and then testing the prototypes using the CSG. This led to a final design consisting of a loop attached to the induction seal, which was then tested with the CSG to evaluate its effectiveness. This study shows the utility of incorporating the CSG into the preliminary design process as opposed to only at the final test of the product. Furthermore, the findings of the study strongly suggest that in designing inclusive packaging for those with limited dexterity, decreasing the required fine finger and joint movements and increasing the gripping areas, especially those involved in the opening mechanism of the package, are the most useful changes to make.