ArticleExperimental brain research2017
Mechanisms contributing to reduced knee stiffness during movement.
Article in Experimental brain research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 38 citations in OpenAlex.
- Quantifying the Multidimensional Impedance of the Shoulder During Volitional Contractions.Annals of biomedical engineering · 2020Trial
- Cancer survivors post-chemotherapy exhibit unimpaired short-latency stretch reflexes in the proximal upper extremity.Journal of neurophysiology · 2023Article
- System identification: a feasible, reliable and valid way to quantify upper limb motor impairments.Journal of neuroengineering and rehabilitation · 2023Article
- Short-latency stretch reflexes depend on the balance of activity in agonist and antagonist muscles during ballistic elbow movements.Journal of neurophysiology · 2023Article
- Simultaneous Quantification of Ankle, Muscle, and Tendon Impedance in Humans.IEEE transactions on bio-medical engineering · 2022Article
- Leveraging Joint Mechanics Simplifies the Neural Control of Movement.Frontiers in integrative neuroscience · 2022Article
- Effects of visual deprivation on the injury of lower extremities among functional ankle instability patients during drop landing: A kinetics perspective.Frontiers in physiology · 2022Article
- Frontal plane ankle stiffness increases with weight-bearing.Journal of biomechanics · 2021Article
- Neurophysiological validation of simultaneous intrinsic and reflexive joint impedance estimates.Journal of neuroengineering and rehabilitation · 2021Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
The ability to modulate the mechanical properties of our limbs contributes to our ability to interact with the physical world in a consistent and predictable manner. An individual joint's contributions to whole limb mechanics can be quantified by its joint impedance, which characterizes the torque generated about a joint in response to external perturbations of position. A number of studies have estimated joint impedance during movement and have shown that it can be much lower than it is during posture. However, the mechanisms contributing to these differences remain unknown partly because conditions known to affect impedance, including muscle activation and joint angles, have not been carefully controlled across studies. The goal of this study was to contrast knee impedance during continuous volitional movements with that during maintained postures spanning a similar range of joint angles and muscle activations and to explore physiological mechanisms likely to contribute to the observed differences. We found that knee impedance was substantially lower during movement than during matched postural tasks, even for matched muscle activations. At times, the impedance during movement was even lower than that measured during isometric tasks with no volitional muscle activity. These decreases in impedance could be attributed in part to reduced stretch reflexes during movement and to an effect of movement itself on reducing knee impedance.
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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.