ArticlePloS one2012
Measuring multi-joint stiffness during single movements: numerical validation of a novel time-frequency approach.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed.
- Human arm endpoint-impedance in rhythmic human-robot interaction exhibits cyclic variations.PloS one · 2023Article
- The Concurrent Control of Motion and Contact Force in the Presence of Predictable Disturbances.Journal of mechanisms and robotics · 2019Article
- Simulation of variable impedance as an intervention for upper extremity motor exploration.IEEE ... International Conference on Rehabilitation Robotics : [proceedings] · 2017Article
- Proximal-distal differences in movement smoothness reflect differences in biomechanics.Journal of neurophysiology · 2017Article
- Experimental measure of arm stiffness during single reaching movements with a time-frequency analysis.Journal of neurophysiology · 2013Article
- Critical damping conditions for third order muscle models: implications for force control.Journal of biomechanical engineering · 2013Article
- Haptic recognition of dystonia and spasticity in simulated multi-joint hypertonia.IEEE ... International Conference on Rehabilitation Robotics : [proceedings] · 2013Article
- System identification of physiological systems using short data segments.IEEE transactions on bio-medical engineering · 2012Article
- Third-Order Muscle Models: The Role of Oscillatory Behavior In Force Control.International Mechanical Engineering Congress and Exposition : [proceedings]. International Mechanical Engineering Congress and Exposition · 2012Article
- Comparing Two Computational Mechanisms for Explaining Functional Recovery in Robot-Therapy of Stroke Survivors.Proceedings of the ... IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics. IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics · 2012Article
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Authors and funding
4 authors.
Funding
Abstract
This study presents and validates a Time-Frequency technique for measuring 2-dimensional multijoint arm stiffness throughout a single planar movement as well as during static posture. It is proposed as an alternative to current regressive methods which require numerous repetitions to obtain average stiffness on a small segment of the hand trajectory. The method is based on the analysis of the reassigned spectrogram of the arm's response to impulsive perturbations and can estimate arm stiffness on a trial-by-trial basis. Analytic and empirical methods are first derived and tested through modal analysis on synthetic data. The technique's accuracy and robustness are assessed by modeling the estimation of stiffness time profiles changing at different rates and affected by different noise levels. Our method obtains results comparable with two well-known regressive techniques. We also test how the technique can identify the viscoelastic component of non-linear and higher than second order systems with a non-parametrical approach. The technique proposed here is very impervious to noise and can be used easily for both postural and movement tasks. Estimations of stiffness profiles are possible with only one perturbation, making our method a useful tool for estimating limb stiffness during motor learning and adaptation tasks, and for understanding the modulation of stiffness in individuals with neurodegenerative diseases.
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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.