Intramuscular pressure, force and blood flow in rabbit tibialis anterior muscles during single and repetitive contractions

European Journal of Applied Physiology and Occupational Physiology
H DegensJ C Jarvis

Abstract

The elevated intramuscular pressure (IMP) associated with sustained muscle contraction can affect blood flow, and could influence the long-term viability of functional skeletal muscle grafts. We therefore examined the relationship between force, peak IMP and blood flow in the tibialis anterior muscle of the anaesthetized rabbit. During isometric contractions. IMP was related linearly to force, and only the slope of the relationship varied between animals. During isotonic contractions, however, the highest values of IMP were found at the lowest force levels, and IMP appeared to be related to the amount and speed of shortening. During repeated isometric contractions, the ratio of IMP to force varied with time, stimulation pattern and subject. Mean blood flow did not differ appreciably between repetitive isometric contractions at duty cycles of 10-40%, and was unrelated to integrated pressure, integrated force, or depth from the surface. We conclude: (1) that IMP is unlikely to affect mean blood flow during cyclic activity that has a duty cycle less than 40%; and (2) that the clinical use of IMP as a predictor of muscle force appears to be justified only for single isometric contractions, and needs to be interpreted cautiously whe...Continue Reading

Citations

Oct 14, 2004·European Journal of Applied Physiology·Pernille VedstedGisela Sjøgaard
Dec 6, 2005·European Journal of Applied Physiology·D M WigmoreJ A Kent-Braun
Feb 26, 2008·Experimental Physiology·Rob C I WüstHans Degens
May 26, 2010·Clinical Physiology and Functional Imaging·Jörn RittwegerHans Degens
Aug 30, 2005·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·B MatonP Barthelemy
Oct 7, 2017·Experimental & Molecular Medicine·Jing-Jing WanXia Liu
Aug 10, 2004·Journal of Applied Physiology·D M WigmoreJ A Kent-Braun
Nov 16, 2006·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·L C Vanden BosscheG G Vanderstraeten
Dec 24, 2005·Muscle & Nerve·Hans DegensMaria T E Hopman
Jan 15, 2010·Journal of Strength and Conditioning Research·Jackson G Green, Stephen R Stannard
Jun 6, 2019·Journal of Muscle Research and Cell Motility·Paul Hendrickse, Hans Degens
Oct 2, 2020·Annals of Biomedical Engineering·Shawn M O'ConnorRichard L Lieber
Jun 19, 2015·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Chris J McNeilCharles L Rice
Dec 9, 2003·Journal of Applied Physiology·Gisela SjøgaardKaren Søgaard
Aug 31, 2021·Biomedical Optics Express·Martina GiovannellaTurgut Durduran
Nov 9, 2021·Frontiers in Human Neuroscience·Christina WillbergMichael Behringer

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