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Mechanomyographic amplitude and frequency responses during dynamic muscle actions: a comprehensive review
Beck, Travis W. Housh, Terry J. Cramer, Joel T. Weir, Joseph P. Johnson, Glen O. Coburn, Jared W. Malek, Moh H. Mielke, Michelle
Beck, Travis W.
Housh, Terry J.
Cramer, Joel T.
Weir, Joseph P.
Johnson, Glen O.
Coburn, Jared W.
Malek, Moh H.
Mielke, Michelle
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Abstract
The purpose of this review is to examine the literature that has investigated mechanomyographic
(MMG) amplitude and frequency responses during dynamic muscle actions. To date, the majority
of MMG research has focused on isometric muscle actions. Recent studies, however, have
examined the MMG time and/or frequency domain responses during various types of dynamic
activities, including dynamic constant external resistance (DCER) and isokinetic muscle actions, as
well as cycle ergometry. Despite the potential influences of factors such as changes in muscle length
and the thickness of the tissue between the muscle and the MMG sensor, there is convincing
evidence that during dynamic muscle actions, the MMG signal provides valid information regarding
muscle function. This argument is supported by consistencies in the MMG literature, such as the
close relationship between MMG amplitude and power output and a linear increase in MMG
amplitude with concentric torque production. There are still many issues, however, that have yet
to be resolved, and the literature base for MMG during both dynamic and isometric muscle actions
is far from complete. Thus, it is important to investigate the unique applications of MMG amplitude
and frequency responses with different experimental designs/methodologies to continually reassess
the uses/limitations of MMG.
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2005-12-19
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BioMed Central
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Beck, T.W., Housh, T.J., Cramer, J.T., Weir, J.P., Johnson, G.O., Coburn, J.W., Malek, M.H., and Mielke, M. Mechanomyographic amplitude and frequency responses during dynamic muscle actions: a comprehensive review. BioMedical Engineering OnLine 2005, 4:67. http://dx.doi.org/10.1186/1475-925X-4-67