Effect of walking with an active ankle exoskeleton on the biomechanical responses of the lumbar spine Article Swipe
Jose E. Rubio
,
Junfei Tong
,
Aravind Sundaramurthy
,
Anup Pant
,
Sridevi Nagaraja
,
Meredith K. Owen
,
Michael A. Samaan
,
Brian Noehren
,
Jaques Reifman
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3389/fbioe.2025.1654585
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3389/fbioe.2025.1654585
Objective Musculoskeletal injuries pose a health threat to U.S. Service members. In particular, the physical demands of walking and running with load carriage contribute to a high incidence of musculoskeletal injuries of the lower back. Active ankle exoskeleton devices are promising technologies that may help mitigate the impact of load carriage on the incidence of these injuries. However, the safe extended use of these devices requires an understanding of their beneficial or detrimental effects on the lumbar spine. In this pilot study, we investigated the impact of walking with an ankle exoskeleton device on lumbar biomechanical responses. Methods We collected motion-capture data and computed tomography images for five young, healthy men walking with a 22.7 kg (50-lb) load for 5 km at a speed of 1.3 m/s, with and without an active ankle exoskeleton (ExoBoot EB60). We developed individualized musculoskeletal and finite-element models to characterize the effects of walking distance and ExoBoot use on the trunk flexion angle, joint reaction force at the L4-L5 joint, and stress on the L4-L5 intervertebral disc annulus. Results While not statistically significant, we found that the peak trunk flexion angle and the peak annulus stress increased by 16% and 12%, respectively, after walking 5 km with the ExoBoot, and by 34% and 25%, respectively, without it. Similarly, the peak L4-L5 joint reaction force minimally increased by 4% with the ExoBoot, while it increased by 22% without the device. Conclusion ExoBoot use likely attenuates the effect of fatigue on the lumbar spine induced by walking with load carriage.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3389/fbioe.2025.1654585
- https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1654585/pdf
- OA Status
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- References
- 74
- OpenAlex ID
- https://openalex.org/W4414520487
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https://doi.org/10.3389/fbioe.2025.1654585Digital Object Identifier
- Title
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Effect of walking with an active ankle exoskeleton on the biomechanical responses of the lumbar spineWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-09-25Full publication date if available
- Authors
-
Jose E. Rubio, Junfei Tong, Aravind Sundaramurthy, Anup Pant, Sridevi Nagaraja, Meredith K. Owen, Michael A. Samaan, Brian Noehren, Jaques ReifmanList of authors in order
- Landing page
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https://doi.org/10.3389/fbioe.2025.1654585Publisher landing page
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https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1654585/pdfDirect link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
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https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1654585/pdfDirect OA link when available
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