Scherb D, Grabietz L, Steck P, Wartzack S, Miehling J (2025)
Publication Type: Book chapter / Article in edited volumes
Publication year: 2025
Publisher: Springer Nature
Series: Springer Series in Design and Innovation
Book Volume: 40
Pages Range: 219-225
DOI: 10.1007/978-981-96-8908-8_33
Wearable assistive devices (WADs) support the human body by force transmission affecting the biomechanics of humans. In order to ensure an ergonomic interaction with the user, in recent years, WADs are increasingly developed with the help of musculoskeletal human models (MHMs) allowing the evaluation of the biomechancial effects on the human body. However, different approaches for virtually modeling the interaction between WAD and MHM exist in literature, which could result in different conclusions drawn for the design of a device in reality and accordingly for the perceived comfort and ergonomics for the user. Thus, in this contribution the effects of different interaction modeling approaches are investigated on the example of assisted gait by an ankle-foot orthosis. The results show that with increasing complexity of the interaction modeling approach the deviation of simulated muscle activation from the desired status increases up to 15%. Especially, for patients requiring a higher magnitude of support, the deviations increase heavily. Thus, when identifying a design for the WAD in reality based on simulation results, these differences have to be kept in mind. Accordingly, for a valid transfer of simulation results into reality and thus, for an optimal perceived ergonomics by the user, the modeling of interactions as closely as possible and incorporating further effects like the compliant behaviour of biological soft tissue is required.
APA:
Scherb, D., Grabietz, L., Steck, P., Wartzack, S., & Miehling, J. (2025). On the Influence of Different Interaction Modeling Approaches on the Design of Wearable Assistive Devices: A Digital Human Model Simulation Study. In (pp. 219-225). Springer Nature.
MLA:
Scherb, David, et al. "On the Influence of Different Interaction Modeling Approaches on the Design of Wearable Assistive Devices: A Digital Human Model Simulation Study." Springer Nature, 2025. 219-225.
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