PMID: 6309712Jul 1, 1983Paper

Effects of static muscular contraction on impulse activity of groups III and IV afferents in cats

Journal of Applied Physiology: Respiratory, Environmental and Exercise Physiology
M P KaufmanJ H Mitchell

Abstract

Static contraction of the hindlimb muscles, induced by electrical stimulation of the ventral roots, reflexly increases arterial blood pressure and heart rate. Although stimulation of groups III and IV muscle afferents is believed to cause these reflex increases, the responses of these afferents to a level of static contraction that increases arterial pressure have not yet been determined. Therefore, in barbiturate-anesthetized cats, afferent impulses arising from endings in the gastrocnemius muscle were recorded from the L7 or S1 dorsal roots, while the cut peripheral end of the L7 ventral root was stimulated. In addition, the effects of capsaicin (100-200 micrograms) and bradykinin (25 micrograms) on the activity of the groups III and IV afferents stimulated by contraction were examined. Contraction of the gastrocnemius muscle to a level equal to or greater than that needed to cause a pressor response stimulated 12 of 19 (63%) group III afferents and 13 of 19 (68%) group IV afferents. However, the discharge patterns of the group III afferents stimulated by contraction were very different from those of the group IV fibers. No relationship was found between those fibers stimulated by contraction and those stimulated by chemicals...Continue Reading

Citations

Dec 1, 1986·Acta Physiologica Scandinavica·B C Shyu, P Thorén
Oct 1, 1996·Medicine and Science in Sports and Exercise·J H Mitchell, R G Victor
Oct 1, 1996·Journal of Applied Physiology·L SinowayU Leuenberger
Dec 1, 1996·Journal of Applied Physiology·G RaimondiG Peruzzi
Jun 1, 1997·Journal of Applied Physiology·C M AdreaniM P Kaufman
Oct 7, 1998·Journal of Applied Physiology·D A MacLeanL I Sinoway
Jun 11, 1998·Journal of Applied Physiology·C M Adreani, M P Kaufman
Dec 8, 1998·Journal of Applied Physiology·S M EttingerL I Sinoway
Aug 13, 1999·Journal of Applied Physiology·P HaouziM P Kaufman
Feb 23, 2000·Circulation·H R MiddlekauffJ D Moriguchi
Mar 11, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·D A MacLeanL I Sinoway
Apr 6, 2000·Journal of Applied Physiology·J R WrightR C Fitzpatrick
Aug 12, 2000·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·S Mostoufi-MoabL I Sinoway
Dec 21, 2000·American Journal of Physiology. Heart and Circulatory Physiology·J Murata, K Matsukawa
Feb 22, 2001·Journal of Applied Physiology·L B Wilson
Oct 3, 2001·Physiological Reviews·S C Gandevia
Aug 17, 2001·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·J F LeDoux, L B Wilson
Jul 19, 2002·American Journal of Physiology. Heart and Circulatory Physiology·Eric J AnsorgeDonal S O'Leary
Apr 17, 2004·American Journal of Physiology. Heart and Circulatory Physiology·Jianhua Li
Oct 12, 2004·American Journal of Physiology. Heart and Circulatory Physiology·Holly R MiddlekauffJignash Patel
Nov 26, 2004·American Journal of Physiology. Heart and Circulatory Physiology·Angela E KindigMarc P Kaufman
Jun 25, 2005·Journal of Applied Physiology·Naoyuki HayashiTakayoshi Yoshida
Jan 10, 2006·American Journal of Physiology. Heart and Circulatory Physiology·Shawn G HayesMarc P Kaufman
Nov 1, 2005·American Journal of Physiology. Heart and Circulatory Physiology·Angela E KindigMarc P Kaufman
Sep 27, 2005·American Journal of Physiology. Heart and Circulatory Physiology·Javier A Sala-MercadoDonal S O'Leary
May 12, 2007·Journal of Neurophysiology·Dean DessemRanjinidevi Ambalavanar
Jul 3, 2007·American Journal of Physiology. Heart and Circulatory Physiology·Jian CuiLawrence I Sinoway
Nov 16, 2007·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Jian CuiLawrence I Sinoway
Jul 22, 2008·American Journal of Physiology. Heart and Circulatory Physiology·Anna K LealScott A Smith
Dec 24, 2008·The Journal of Physiology·Shawn G HayesMarc P Kaufman
Jul 25, 2009·Journal of Neurophysiology·Stéphane BaudryRoger M Enoka
Aug 31, 2010·American Journal of Physiology. Heart and Circulatory Physiology·Joel D TrinityRussell S Richardson
Sep 21, 2010·American Journal of Physiology. Heart and Circulatory Physiology·Jiahao LiuJianhua Li
Mar 15, 2011·Journal of Sports Sciences·Gavin R DevereuxIan Swaine

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