ArticleFrontiers in bioengineering and biotechnology2025
Effect of walking with an active ankle exoskeleton on the biomechanical responses of the lumbar spine.
Article in Frontiers in bioengineering and biotechnology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Effects of an actuated ankle exoskeleton on walking stability in healthy adults: a controlled laboratory study.Journal of neuroengineering and rehabilitation · 2026Trial
- Effect of exertion on the biomechanics of walking with load carriage and running in young, healthy women.Scientific reports · 2026Article
- Parametric Finite Element Evaluation of Load Redistribution Under Progressive Lumbar Disc Degeneration.Bioengineering (Basel, Switzerland) · 2026Article
- Characterization of lower-extremity biomechanics when walking with a hands-free crutch: an integrated experimental and computational analysis.Frontiers in bioengineering and biotechnology · 2026Article
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Authors and funding
9 authors.
Funding
Abstract
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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