Quantification of muscle co-contraction using supersonic shear wave imaging

Journal of Biomechanics
Brent J RaiteriGlen A Lichtwark

Abstract

Muscle stiffness estimated using shear wave elastography can provide an index of individual muscle force during isometric contraction and may therefore be a promising method for quantifying co-contraction. We estimated the shear modulus of the lateral gastrocnemius (LG) muscle using supersonic shear wave imaging and measured its myoelectrical activity using surface electromyography (sEMG) during graded isometric contractions of plantar flexion and dorsiflexion (n=7). During dorsiflexion, the average shear modulus was 26 ± 6 kPa at peak sEMG amplitude, which was significantly less (P=0.02) than that measured at the same sEMG level during plantar flexion (42 ± 10 kPa). The passive tension during contraction was estimated using the passive LG muscle shear modulus during a passive ankle rotation measured at an equivalent ankle angle to that measured during contraction. The passive shear modulus increased significantly (P<0.01) from the plantar flexed position (16 ± 5 kPa) to the dorsiflexed position (26 ± 9 kPa). Once this change in passive tension from joint rotation was accounted for, the average LG muscle shear modulus due to active contraction was significantly greater (P<0.01) during plantar flexion (26 ± 8 kPa) than at sEMG-m...Continue Reading

References

Jun 1, 1988·Electroencephalography and Clinical Neurophysiology·C J De Luca, R Merletti
Nov 8, 2002·Archives of Physical Medicine and Rehabilitation·Jeffrey R BasfordKenton R Kaufman
Jul 29, 2003·Developmental Medicine and Child Neurology·Geoffrey C B ElderLorne Leahey
May 14, 2004·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Jérémy BercoffMathias Fink
Jan 1, 1990·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Y YamakoshiT Sato
Mar 29, 2008·Developmental Medicine and Child Neurology·Kristina TedroffGary L Soderberg
Feb 20, 2010·Journal of Applied Physiology·Antoine Nordez, François Hug
Jan 10, 2012·PloS One·Killian BouillardFrançois Hug
May 31, 2013·Physiological Measurement·L A ChernakD G Thelen
Jun 19, 2013·Journal of Biomechanics·Terry K KooKevin J Parker
Aug 21, 2013·Journal of Biomechanics·François HugAntoine Nordez
Aug 21, 2013·Journal of Biomechanics·Sarah F EbyKai-Nan An
Apr 24, 2015·Exercise and Sport Sciences Reviews·François HugAntoine Nordez
May 10, 2015·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Filiz AteşAntoine Nordez

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Citations

Feb 6, 2018·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·Li YinRuijun Guo
Sep 23, 2018·European Journal of Applied Physiology·Irsa TalibMd Asraf Ali
Mar 21, 2018·Proceedings of the National Academy of Sciences of the United States of America·Brent James RaiteriGlen Anthony Lichtwark
Aug 16, 2018·European Journal of Applied Physiology·Bruno MendesSandro R Freitas
Nov 28, 2017·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Joseph P KellyJoshua A Cleland

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