ArticleScientific reports2018
Proactive Locomotor Adjustments Are Specific to Perturbation Uncertainty in Below-Knee Prosthesis Users.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 20 citations in OpenAlex.
- Stroke impairs the proactive control of dynamic balance during predictable treadmill accelerations.Journal of the Royal Society, Interface · 2025Article
- Sensory feedback for gait in transtibial amputees: a narrative review of technologies and clinical outcomes.Frontiers in bioengineering and biotechnology · 2025Review
- Perturbing reach elicits anticipatory responses in transport and grasp.Frontiers in human neuroscience · 2024Article
- Optimism persists when walking in unpredictable environments.Scientific reports · 2023Article
- Small directional treadmill perturbations induce differential gait stability adaptation.Journal of neurophysiology · 2022Article
- Use of a Single Wearable Sensor to Evaluate the Effects of Gait and Pelvis Asymmetries on the Components of the Timed Up and Go Test, in Persons with Unilateral Lower Limb Amputation.Sensors (Basel, Switzerland) · 2021Article
- Dynamic balancing responses in unilateral transtibial amputees following outward-directed perturbations during slow treadmill walking differ considerably for amputated and non-amputated side.Journal of neuroengineering and rehabilitation · 2021Article
- The feasibility and validity of a wearable sensor system to assess the stability of high-functioning lower-limb prosthesis users.Journal of prosthetics and orthotics : JPO · 2020Article
- Biomechanics of In-Stance Balancing Responses Following Outward-Directed Perturbation to the Pelvis During Very Slow Treadmill Walking Show Complex and Well-Orchestrated Reaction of Central Nervous System.Frontiers in bioengineering and biotechnology · 2020Article
- Article
- Fall Prevalence and Contributors to the Likelihood of Falling in Persons With Upper Limb Loss.Physical therapy · 2019Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 2 countries.
Funding
Abstract
Sensory-motor deficits associated with below-knee amputation impair reactions to external perturbations. As such, below-knee prosthesis users rely on proactive control strategies to maintain locomotor stability. However, there are trade-offs (metabolic, comfort, etc.) associated with proactive strategies. We hypothesize that because proactive control strategies are costly, prosthesis users and non-impaired participants will use a priori knowledge (timing, direction) of an impending lateral perturbation to make specific gait adaptations only when the timing of the perturbation is known and the adaptation can be temporally-limited. This hypothesis was partially supported. When the perturbation timing was predictable, only prosthesis users, and only on their impaired side, increased their lateral margin of stability during the steps immediately preceding the perturbation when perturbation direction was either unknown or known to be directed towards their impaired side. This strategy should reduce the likelihood of requiring a corrective step to maintain stability. However, neither group exhibited substantial proactive adaptations compared to baseline walking when perturbation timing was unpredictable, independent of perturbation direction knowledge. The absence of further proactive stabilization behaviors observed in prosthesis users in anticipation of a certain but temporally unpredictable perturbation may be partially responsible for impaired balance control.
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