ArticleScientific reports2021
Response to perturbation during quiet standing resembles delayed state feedback optimized for performance and robustness.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Adjoint sensitivity method for parameter estimation: applications to inverted pendulum and human standing balance.Journal of the Royal Society, Interface · 2025Article
- Process of dynamic balance recovery after voluntary perturbation: a time-series data analysis of young and older adults.Journal of physical therapy science · 2024Article
- Time-delay estimation in biomechanical stability: a scoping review.Frontiers in human neuroscience · 2024Article
- Article
- Control of structural redundancy from the head to trunk in the human upright standing revealed using a data-driven approach.Scientific reports · 2022Article
- Virtual stick balancing: skill development in Newtonian and Aristotelian dynamics.Journal of the Royal Society, Interface · 2022Article
- Exploring the effects of serial and parallel elasticity on a hopping robot.Frontiers in neurorobotics · 2022Article
- Long-Lasting Event-Related Beta Synchronizations of Electroencephalographic Activity in Response to Support-Surface Perturbations During Upright Stance: A Pilot Study Associating Beta Rebound and Active Monitoring in the Intermittent Postural Control.Frontiers in systems neuroscience · 2021Article
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Authors and funding
4 authors.
Funding
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Abstract
Postural sway is a result of a complex action-reaction feedback mechanism generated by the interplay between the environment, the sensory perception, the neural system and the musculation. Postural oscillations are complex, possibly even chaotic. Therefore fitting deterministic models on measured time signals is ambiguous. Here we analyse the response to large enough perturbations during quiet standing such that the resulting responses can clearly be distinguished from the local postural sway. Measurements show that typical responses very closely resemble those of a critically damped oscillator. The recovery dynamics are modelled by an inverted pendulum subject to delayed state feedback and is described in the space of the control parameters. We hypothesize that the control gains are tuned such that (H1) the response is at the border of oscillatory and nonoscillatory motion similarly to the critically damped oscillator; (H2) the response is the fastest possible; (H3) the response is a result of a combined optimization of fast response and robustness to sensory perturbations. Parameter fitting shows that H1 and H3 are accepted while H2 is rejected. Thus, the responses of human postural balance to "large" perturbations matches a delayed feedback mechanism that is optimized for a combination of performance and robustness.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.