PMID: 3760930Aug 1, 1986Paper

Aftereffects in the responses of cat muscle spindles

Journal of Neurophysiology
J E GregoryU Proske

Abstract

Responses have been recorded from primary endings of muscle spindles in the cat soleus muscle. Changes in spindle responsiveness were measured following a period of conditioning that consisted of a series of rapid stretches or of tetanic ventral root stimulation. In the testing procedure the response of a single spindle afferent was recorded to stimulation of a dynamic fusimotor axon during a slow stretch. Changes in gross afferent discharge coming from the muscle were measured by integrating the activity recorded in dorsal roots. If, after conditioning stretches, the muscle was immediately returned to its initial length, the spindle responded to the test fusimotor stimulation with a high-frequency burst of afferent impulses. If the muscle was held stretched for 3 s after conditioning the response to the brief test tetanus was small or "depressed." It has been suggested that conditioning stretches result in detachment of stable crossbridges in intrafusal fibers and that these bridges then reform over the next few seconds at whatever length the muscle happens to have at the time. When it is long, shortening the muscle back to the initial length leads to the development of slack in intrafusal fibers because of the passive stiffne...Continue Reading

Citations

Aug 20, 2005·The Journal of Physiology·J A WinterU Proske
Mar 20, 2013·The Journal of Orthopaedic and Sports Physical Therapy·Carol A CourtneyAndrew Waters
Aug 19, 2015·Frontiers in Behavioral Neuroscience·Jack De HavasPatrick Haggard
Nov 24, 1998·The Journal of Physiology·J E GregoryU Proske
Jan 11, 2003·Journal of Neurophysiology·Laurent De-DonckerMaurice Falempin
Sep 10, 2014·Experimental Brain Research·Uwe ProskeTrevor Allen
Jan 1, 1990·Experimental Brain Research·S ThompsonU Proske
Feb 21, 1998·Journal of Neurophysiology·M M WierzbickaJ P Roll
Sep 17, 2002·Research Quarterly for Exercise and Sport·Bruce Etnyre, Takashi Kinugasa
Oct 3, 2000·Spine·J D Dishman, R Bulbulian
Aug 10, 2006·Muscle & Nerve·Uwe Proske
Apr 27, 2013·American Journal of Physical Medicine & Rehabilitation·Chetan P PhadkeChris Boulias
May 10, 2019·Journal of Applied Physiology·Martin Lakie, Kenneth S Campbell
Aug 1, 2020·PloS One·Catharina GlowaniaLoes C J Van Dam
Apr 28, 2011·The Journal of Physiology·Billy L LuuRichard C Fitzpatrick
Jan 6, 2000·Progress in Neurobiology·U ProskeJ E Gregory
Jun 10, 2021·Journal of Manipulative and Physiological Therapeutics·Carla R LimaWilliam R Reed

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