Results 1 to 10 of about 15,396 (149)

Modulation of the functional stretch reflex by the segmental reflex pathway

Experimental Brain Research, 1976
Electromyographic (EMG) reflex responses were examined in the biceps muscle of awake Cebus monkeys trained to resist perturbations of a handle with their forearm. In particular responses at latencies of 15-20 msec (M1) and 40-55 msec (M2), thought to correspond to segmental and suprasegmental reflex pathways respectively, were studied.
T, Vilis, J D, Cooke
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Sensitivity of H-Reflexes and Stretch Reflexes to Presynaptic Inhibition in Humans

Journal of Neurophysiology, 1998
Morita, H., N. Petersen, L.O.D. Christensen, T. Sinkjær, and J. Nielsen. Sensitivity of H-reflexes and stretch reflexes to presynaptic inhibition in humans. J. Neurophysiol. 80: 610–620, 1998. The sensitivity of soleus H-reflexes, T-reflexes, and short-latency stretch reflexes (M1) to presynaptic inhibition evoked by a weak tap applied to the biceps ...
Morita, H, Petersen, Nicolas, Christensen, LOD, Sinkjær, Thomas, Nielsen, Jens Bo   +4 more
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Regulation of wrist stiffness by the stretch reflex

Journal of Biomechanics, 1989
In restoring the angular position after a displacement, the role of the muscle stretch reflex was investigated by comparing the restored angular torques and angular positions in the wrist under ischaemic and non-ischaemic conditions in normal human subjects.
T, Sinkjaer, R, Hayashi
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Modulation of the tonic stretch reflex by monoamines

European Journal of Pharmacology, 1979
The effects of L-DOPA and 5-HTP on the tonic stretch reflex (TSR) in the decerebrate rat were studied. L-DOPA facilitated the TSR in a dose-dependent manner. The facilitation of the TSR was blocked by pimozide. A sensitive electromygraphic (EMG) technique capable of recording single motor unit discharges was used.
J W, Commissiong, E M, Sedgwick
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Stretch Reflexes and Parkinsonian Tremor

1987
By coupling human limbs to a machine, which drives a single joint through sinusoidal flexion-extension movements, it is often possible to entrain the resting tremor of Parkinson's disease. Entrainment is most likely to occur when the imposed movement is large in amplitude and close in frequency to the spontaneous tremor.
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Development of the monosynaptic stretch reflex circuit

Current Opinion in Neurobiology, 2003
Significant advances have been made during the past few years in our understanding of how the spinal monosynaptic reflex develops. Transcription factors in the Neurogenin, Runt, ETS, and LIM families control sequential steps of the specification of various subtypes of dorsal root ganglia sensory neurons. The initiation of muscle spindle differentiation
Chen, H. -H., Hippenmeyer, S., Arber, S., Frank, E.   +3 more
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Regulatory actions of human stretch reflex

Journal of Neurophysiology, 1976
1. The stretch reflex in the elbow flexor musculature was studied in 23 human subjects. The subjects were required to establish an initial force equivalent to 10% maximum at a prescribed initial length; mechanical disturbances delivered at random times increased load force to 15% or reduced it to 5%.
P E, Crago, J C, Houk, Z, Hasan
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An Assessment of Stretch Reflex Function

1976
Publisher Summary Most investigators believe that the stretch reflex is an important mechanism in the regulation of posture and movement, but the precise nature of its actions and the importance of this reflex in intact animals and humans have remained unclear.
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Stretch reflexes in human abdominal muscles

Experimental Brain Research, 2004
Homonymous and heteronymous reflex connections of the abdominal muscles were investigated by the application of a tap to the muscle belly and observation of surface electromyographic responses. Reflex responses of the following abdominal muscles were investigated both ipsilateral and contralateral to the tap: rectus abdominis (RA), external oblique (EO)
Beith, I D, Harrison, P J
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Nonlinear identification of stretch reflex dynamics

Annals of Biomedical Engineering, 1988
The objective of this study was to use nonlinear identification techniques to study the dynamics of stretch reflexes in the human calf muscles (gastrocnemius-soleus). Stochastic perturbations of ankle position were applied while subjects maintained a constant, tonic contraction of gastrocnemius-soleus.
R E, Kearney, I W, Hunter
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