Results 11 to 20 of about 17,387 (307)

Soleus Stretch Reflex during Cycling [PDF]

Motor Control, 2001
The modulation and strength of the human soleus short latency stretch reflex was investigated by mechanically perturbing the ankle during an unconstrained pedaling task. Eight subjects pedaled at 60 rpm against a preload of 10 Nm. A torque pulse was applied to the crank at various positions during the crank cycle, producing ankle dorsiflexion ...
Grey, Michael James, Pierce, C. W., Milner, T. E., Sinkjær, Thomas   +3 more
openaire   +4 more sources

The stretch reflex and the contributions of C David Marsden

Annals of Indian Academy of Neurology, 2017
The stretch reflex or myotatic reflex refers to the contraction of a muscle in response to its passive stretching by increasing its contractility as long as the stretch is within physiological limits.
Kalyan B Bhattacharyya
doaj   +2 more sources

Human stretch reflex pathways reexamined

Journal of Neurophysiology, 2014
Reflex responses of tibialis anterior motor units to stretch stimuli were investigated in human subjects. Three types of stretch stimuli were applied (tap-like, ramp-and-hold, and half-sine stretch). Stimulus-induced responses in single motor units were analyzed using the classical technique, which involved building average surface electromyogram ...
S. U. Yavuz, N. Mrachacz-Kersting, O. Sebik, M. Berna Unver, D. Farina, K. S. Turker   +5 more
openaire   +6 more sources

Modulations of stretch reflex by altering visuomotor contexts [PDF]

Frontiers 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

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

Experimental 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, Christopher Tuthill, Anthony N. Corsten, Stella Barth, Randy D. Trumbower   +4 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

Sensors, 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, Raphaël Dumas, Eric Desailly   +2 more
doaj   +1 more source

Visually-updated hand state estimates modulate the proprioceptive reflex independently of motor task requirements

eLife, 2020
Fast signaling from vision and proprioception to muscle activation plays essential roles in quickly correcting movement. Though many studies have demonstrated modulation of the quick sensorimotor responses as depending on context in each modality, the ...
Sho Ito, Hiroaki Gomi
doaj   +1 more source

Evidence for Muscle Cell-Based Mechanisms of Enhanced Performance in Stretch-Shortening Cycle in Skeletal Muscle

Frontiers in Physiology, 2021
Force attained during concentric contraction (active shortening) is transiently enhanced following eccentric contraction (active stretch) in skeletal muscle. This phenomenon is called stretch-shortening cycle (SSC) effect.
Atsuki Fukutani, Atsuki Fukutani, Tadao Isaka, Walter Herzog   +3 more
doaj   +1 more source

Pulmonary stretch receptor activity during partial liquid ventilation in cats with healthy lungs [PDF]

, 2004
Aim: To study whether pulmonary stretch receptor (PSR) activity in mechanically ventilated young cats with healthy lungs during partial liquid ventilation (PLV) is different from that during gas ventilation (GV).
Sedin, G., Sindelar, R., Schulze, A., Rieger-Fackeldey, Esther, Jonzon, A.   +4 more
core   +1 more source

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

Frontiers 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, Yuki Murakami, Koh Hosoda, Koh Hosoda   +3 more
doaj   +1 more source