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An ergonomic comparison of three different patient transport chairs in a simulated hospital environment. 2020

Hailee R Kulich, and Sarah R Bass, and Jefferson S Griscavage, and Amogha Vijayvargiya, and Jonathan S Slowik, and Alicia M Koontz
Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, Pittsburgh, PA, USA; Department of Rehabilitation Science and Technology, University of Pittsburgh, Pittsburgh, PA, USA.

The purpose of this study was to compare caregiver muscle activation and joint angles between two ergonomic transport chairs designed to mitigate discomfort and safety risks associated with patient transport, the Stryker® Prime TC and the Staxi® Medical Chair, and a depot wheelchair. Twenty-three caregivers completed level walking and ramped tasks with each device and an 84 kg manikin. Surface electromyography for the upper extremities and back muscles and motion data were collected. The Staxi showed a statistical trend for higher wrist extensor and flexor carpi ulnaris activity compared to the Stryker chair (p ≤ 0.078) and greater wrist flexion than the Stryker and depot chairs (p ≤ 0.004). The depot chair showed greater peak trunk flexion than the Stryker chair (p = 0.004). Overall results suggest that ergonomic chair design may improve joint positioning of the trunk and elbows when operating patient transport chairs over level and ramped surfaces.

UI MeSH Term Description Entries
D008297 Male Males
D008348 Manikins Inanimate physical models which bear likeness to human beings and are used for various purposes in place of humans. Mannequins,Manikin,Mannequin
D009038 Motion Physical motion, i.e., a change in position of a body or subject as a result of an external force. It is distinguished from MOVEMENT, a process resulting from biological activity. Motions
D004550 Elbow Region of the body immediately surrounding and including the ELBOW JOINT.
D004576 Electromyography Recording of the changes in electric potential of muscle by means of surface or needle electrodes. Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D004867 Equipment Design Methods and patterns of fabricating machines and related hardware. Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D005260 Female Females
D006761 Hospitals Institutions with an organized medical staff which provide medical care to patients. Hospital
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006804 Ergonomics The science of designing, building or equipping mechanical devices or artificial environments to the anthropometric, physiological, or psychological requirements of the people who will use them. Engineering Psychology,Human Engineering,Cognitive Ergonomics,Ergonomic Assessment,Human Factors Engineering,Human Factors and Ergonomics,Organizational Ergonomics,Physical Ergonomics,Psychology, Engineering,Visual Ergonomics,Cognitive Ergonomic,Ergonomic,Ergonomic Assessments,Ergonomic, Cognitive,Ergonomic, Organizational,Ergonomic, Physical,Ergonomic, Visual,Ergonomics, Cognitive,Ergonomics, Organizational,Ergonomics, Physical,Ergonomics, Visual,Human Factors Engineerings,Organizational Ergonomic,Physical Ergonomic,Visual Ergonomic

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