Technical aspects of surface mechanomyography

The technical aspects of detecting surface mechanomyographic (MMG) signals are important, particularly when a laboratory first decides to conduct MMG research, or when detecting MMG signals from muscles in new applications, such as for prosthesis control. Of particular importance is the amount of contact pressure applied over the sensor, since high contact pressures can attenuate the muscle fiber vibrations that generate the MMG signal. Recent studies have also shown that the MMG amplitude and frequency responses may be different, depending on whether an accelerometer, Correspondence/Reprint request: Dr. Travis W. Beck, Biophysics Laboratory, Department of Health and Exercise Science, University of Oklahoma, 1401 Asp Avenue, Norman, Oklahoma, 73019-6081, USA. E-mail: tbeck@ou.edu

[1]  R. A. Ashley,et al.  Transmission of acoustic or vibratory signals from a contracting muscle to relatively distant tissues. , 1990, Electromyography and clinical neurophysiology.

[2]  Kiyoshi Naemura,et al.  Non-contact muscle sound sensing by laser displacement meter and development of a wearable muscle sound recorder for daily life , 2000, Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Cat. No.00CH37143).

[3]  M. Watakabe,et al.  Mechanical behaviour of condenser microphone in mechanomyography , 2001, Medical and Biological Engineering and Computing.

[4]  Dario Farina,et al.  Spatial and force dependency of mechanomyographic signal features , 2006, Journal of Neuroscience Methods.

[5]  T. Gharbi,et al.  MMG measurement: a high-sensitivity microphone-based sensor for clinical use , 1998, IEEE Transactions on Biomedical Engineering.

[6]  D. Rafolt,et al.  Surface myomechanical responses recorded on a scanner galvanometer , 2002, Medical and Biological Engineering and Computing.

[7]  Yoshihiro Shimomura,et al.  Influence of force tremor on mechanomyographic signals recorded with an accelerometer and a condenser microphone during measurement of agonist and antagonist muscles in voluntary submaximal isometric contractions. , 2008, Journal of physiological anthropology.

[8]  N. Accornero,et al.  Surface electromyography and mechanomyography recording: A new differential composite probe , 2006, Medical and Biological Engineering and Computing.

[9]  M. Ouamer,et al.  Acoustic myography during voluntary isometric contraction reveals non-propagative lateral vibration. , 1999, Journal of biomechanics.

[10]  K. Akataki,et al.  Repeatability study of mechanomyography in submaximal isometric contractions using coefficient of variation and intraclass correlation coefficient. , 1999, Electromyography and clinical neurophysiology.

[11]  Tom Chau,et al.  A mathematical model for source separation of MMG signals recorded with a coupled microphone-accelerometer sensor pair , 2005, IEEE Transactions on Biomedical Engineering.

[12]  Pascal Madeleine,et al.  A comparison between mechanomyographic condenser microphone and accelerometer measurements during submaximal isometric, concentric and eccentric contractions. , 2007, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[13]  Joseph P Weir,et al.  Comparison of a piezoelectric contact sensor and an accelerometer for examining mechanomyographic amplitude and mean power frequency versus torque relationships during isokinetic and isometric muscle actions of the biceps brachii. , 2006, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[14]  Yoshihiro Shimomura,et al.  Comparison of an accelerometer and a condenser microphone for mechanomyographic signals during measurement of agonist and antagonist muscles in sustained isometric muscle contractions. , 2008, Journal of physiological anthropology.

[15]  M. Watakabe,et al.  Reliability of the mechanomyogram detected with an accelerometer during voluntary contractions , 2003, Medical and Biological Engineering and Computing.

[16]  K. Akataki,et al.  Technical aspects of mechnomyography recording with piezoelectric contact sensor , 1998, Medical and Biological Engineering and Computing.

[17]  T. R. Thompson,et al.  Recording sound from human skeletal muscle: Technical and physiological aspects , 1989, Muscle & nerve.

[18]  M. Stokes,et al.  Technical aspects of acoustic myography (AMG) of human skeletal muscle: contact pressure and force/AMG relationships , 1993, Journal of Neuroscience Methods.