Changes in kinematics and muscle activity when learning to use a whole-body powered exoskeleton for stationary load handling

Park, Hanjun; Kim, Sunwook; Nussbaum, Maury A.; Srinivasan, Divya

doi:10.1177/1071181322661218

Cited by 1 publication

(1 citation statement)

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“…(Gonsalves et al 2021;Kim et al, 2019;Kim et al, 2021;Sawicki et al, 2020). However, current fullbody powered exoskeletons can be unwieldy due to differences in loading, motion, and balance compared to natural movement, increasing the likelihood and severity of collisions (Park et al, 2022;Yang et al 2008). Collision incidence may be further increased by cognitive demands in exoskeleton control (Fox et al, 2019;Mitchell, 2000;Yee et al, 2007), resulting in lower situation awareness (SA; Endsley, 1995;Lau & Boring, 2017;Wickens, 2002).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Augmented Reality Rearview And Radar Head-Up Displays for Increasing Situation Awareness During Exoskeleton Operation

Hollister,

Hsing,

Luo

et al. 2023

Proceedings of the Human Factors and Ergonomics Society Annual

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Exoskeletons may reduce the incidence of work-related musculoskeletal disorders, but current full-body powered exoskeletons impose loading, motion, and balance requirements on users that may induce mental workload, reduce spatial awareness, and increase risk of collisions, negating the safety benefits. This extended abstract presents an experimental study comparing three types of augmented reality (AR) head-up displays at improving spatial awareness in a simulated warehouse task to reduce risk of collision with pedestrians behind the user. The experiment includes three levels of display abstraction (rearview camera, overhead radar, and ring radar) and three levels of display elevation (15°, 45°, and 90°). Results of the on-going data analysis will include the amount of time an (experimenter) pedestrian waits behind the (participant) transporter who should sidestep to let the pedestrian pass, and subjective usability and situation awareness ratings. This will contribute to research in augmenting spatial awareness and reducing collision risk of exoskeleton users.

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