PMID: 11606015Oct 19, 2001Paper

Muscle efficiency: the controversial role of elasticity and mechanical energy conversion in stretch-shortening cycles

European Journal of Applied Physiology
G J Ettema

Abstract

The analysis of muscle efficiency was performed on a variety of simulated muscle stretch-shortening cycles of in situ rat gastrocnemius muscle. The processes of biochemical energy conversions (phosphorylation and contraction-coupling) and mechanical conversions (internal work to external work) were incorporated in the efficiency calculations. Metabolic cost was determined using a simple linear model. Special attention was drawn to the interacting roles of series elastic compliance and contraction dynamics. The results showed that series elastic compliance affected the efficiency of muscle contraction to a great extent. Stiff muscle was well designed to perform efficient contractions in which muscle merely shortened while active. Compliant muscle performed best in true stretch-shortening contractions utilising the storage and release of series elastic energy effectively. However, both stiff and compliant series elastic elements showed similar optimal muscle efficiency values in shortening contractions and stretch-shortening contractions, respectively. The findings indicate that the storage and re-utilisation of series elastic energy does not enhance overall muscle efficiency, but that optimal efficiency is obtained by a proper d...Continue Reading

Citations

Feb 21, 2009·European Journal of Applied Physiology·Gertjan Ettema, Håvard Wuttudal Lorås
Feb 18, 2010·European Journal of Applied Physiology·Iain M Fletcher
Apr 3, 2012·European Journal of Applied Physiology·Merja HoffrénPaavo V Komi
May 18, 2013·Sports Medicine·Heidi Kallerud, Nigel Gleeson
Oct 31, 2008·Journal of Sports Sciences·Sarah J AllisonJonathan P Folland
Jul 6, 2004·Sports Medicine·Erik WitvrouwPeter McNair
Dec 28, 2006·Sports Medicine·Marcus C C W ElliottLoren Chiu
Oct 16, 2015·Proceedings of the National Academy of Sciences of the United States of America·Benjamin D Robertson, Gregory S Sawicki
Apr 24, 2007·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·A MaduriS E Wilson
Nov 15, 2006·Journal of Biomechanics·G A Lichtwark, A M Wilson
Jun 29, 2013·Bioarchitecture·Antonio S J LeeEdna C Hardeman
Sep 16, 2016·Frontiers in Physiology·Jacob E EarpAnthony J Blazevich
Nov 9, 2005·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Masaki IshikawaSami Kuitunen
Jan 22, 2017·The Journal of Experimental Biology·Charlie M WaughAnthony J Blazevich
Jun 26, 2015·Medicine and Science in Sports and Exercise·Jørgen DanielsenGertjan Ettema
Aug 26, 2020·European Journal of Applied Physiology·Andrea MontePaola Zamparo
Jul 30, 2003·The American Journal of Clinical Nutrition·José M NicolásJoaquim Fernández-Solà
Apr 10, 2019·European Journal of Applied Physiology·Thomas HaugenGertjan Ettema
Aug 5, 2017·Journal of Applied Physiology·Jeroen AelesBenedicte Vanwanseele
Jun 24, 2011·Exercise and Sport Sciences Reviews·Malcolm Collins, Michael Posthumus
Mar 16, 2005·The Journal of Experimental Biology·Donald F HoytKristin L De La Paz
Jul 28, 2004·The Journal of Experimental Biology·Brendan J Borrell, Matthew J Medeiros
Jul 27, 2005·The Journal of Experimental Biology·G A Lichtwark, A M Wilson
Jul 27, 2005·The Journal of Experimental Biology·G A Lichtwark, A M Wilson
Aug 2, 2015·The Journal of Experimental Biology·Gregory S SawickiThomas J Roberts
Jun 16, 2021·Journal of Sports Sciences·Stuart A McErlain-NaylorMark A King
Sep 30, 2021·Journal of the Royal Society, Interface·Stephanie A Ross, James M Wakeling

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