Results 1 to 10 of about 51,035 (270)

Revising the stretch reflex threshold method to measure stretch hyperreflexia in cerebral palsy [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Hyper-resistance is an increased resistance to passive muscle stretch, a common feature in neurological disorders. Stretch hyperreflexia, an exaggerated stretch reflex response, is the neural velocity-dependent component of hyper-resistance, and has been
Pedro Valadão   +8 more
doaj   +2 more sources

A Velocity Stretch Reflex Threshold Based on Muscle–Tendon Unit Peak Acceleration to Detect Possible Occurrences of Spasticity during Gait in Children with Cerebral Palsy [PDF]

open access: yesSensors, 2023
Spasticity might affect gait in children with cerebral palsy. Quantifying its occurrence during locomotion is challenging. One approach is to determine kinematic stretch reflex thresholds, usually on the velocity, during passive assessment and to search ...
Axel Koussou   +2 more
doaj   +2 more sources

Impact of Voluntary Muscle Activation on Stretch Reflex Excitability in Individuals With Hemiparetic Stroke [PDF]

open access: yesFrontiers in Neurology, 2022
ObjectiveTo characterize how, following a stretch-induced attenuation, volitional muscle activation impacts stretch reflex activity in individuals with stroke.MethodsA robotic device rotated the paretic elbow of individuals with hemiparetic stroke from ...
Jacqueline R. Patterson   +9 more
doaj   +2 more sources

Enhancing postural stability in a musculoskeletal hopping robot through stretch reflex application on biarticular thigh muscles [PDF]

open access: yesFrontiers in Robotics and AI, 2023
Postural stabilization during rapid and powerful hopping actions represents a significant challenge for legged robotics. One strategy utilized by humans to negotiate this difficulty is the robust activation of biarticular thigh muscles.
Ryu Takahashi   +3 more
doaj   +2 more sources

Significantly Delayed Medium-Latency Response of the Stretch Reflex in Delayed-Onset Muscle Soreness of the Quadriceps Femoris Muscles Is Indicative of Sensory Neuronal Microdamage [PDF]

open access: yesJournal of Functional Morphology and Kinesiology, 2022
Unaccustomed or strenuous eccentric exercise is known to cause delayed-onset muscle soreness. A recent hypothesis postulated that mechano-energetic microinjury of the primary afferent sensory neuron terminals in the muscle spindles, namely a transient ...
Balázs Sonkodi   +3 more
doaj   +2 more sources

A Method for Quantification of Stretch Reflex Excitability During Ballistic Reaching [PDF]

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
Stretch reflexes are crucial for performing accurate movements and providing rapid corrections for unpredictable perturbations. Stretch reflexes are modulated by supraspinal structures via corticofugal pathways.
Thomas A. M. Plaisier   +2 more
doaj   +2 more sources

Modulations of stretch reflex by altering visuomotor contexts [PDF]

open access: yesFrontiers in Human Neuroscience
Various functional modulations of the stretch reflex help to stabilize actions, but the computational mechanism behind its context-dependent tuning remains unclear.
Sho Ito, Sho Ito, Hiroaki Gomi
doaj   +2 more sources

Detection of stretch reflex onset based on empirical mode decomposition and modified sample entropy [PDF]

open access: yesBMC Biomedical Engineering, 2019
Background Accurate spasticity assessment provides an objective evaluation index for the rehabilitation treatment of patients with spasticity, and the key is detecting stretch reflex onset.
Mingjia Du   +5 more
doaj   +2 more sources

A single sequence of intermittent hypoxia does not alter stretch reflex excitability in able‐bodied individuals [PDF]

open access: yesExperimental Physiology
Spasticity attributable to exaggerated stretch reflex pathways, particularly affecting the ankle plantar flexors, often impairs overground walking in persons with incomplete spinal cord injury.
Andrew Q. Tan   +4 more
doaj   +2 more sources

Treatment Response to Botulinum Neurotoxin-A in Children With Cerebral Palsy Categorized by the Type of Stretch Reflex Muscle Activation [PDF]

open access: yesFrontiers in Neurology, 2020
While Botulinum NeuroToxin-A (BoNT-A) injections are frequently used to reduce the effects of hyperactive stretch reflexes in children with cerebral palsy (CP), the effects of this treatment vary strongly.
Lynn Bar-On   +9 more
doaj   +2 more sources

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