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Delsys® Innovations in Surface EMG
EMG Sensors
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| 1979 |
Introduced the single-unit fixed-spacing surface EMG sensor |
[1] |
| 1985 |
Introduced the Parallel-Bar EMG Sensor |
[2] |
| 1985 |
Invented the Double-Differential, cross-talk reduction concept |
[3] |
| 1985 |
Proposed EMG electrode placement (midway between motor point and tendon) |
[2,4] |
| 1987 |
Introduced the parallel-bar electrode for measuring cross talk and conduction velocity |
[3,5] |
| 1994 |
Marketed the parallel-bar EMG Sensor (DE 2.1) |
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| 1997 |
Marketed the stand-alone EMG Sensor (DE2.3) |
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| 1998 |
Marketed the double differential EMG Sensor (DE 3.1) |
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| 2004 |
Developed Test Methodologies for improving Skin-Sensor Interface |
[13, 17] |
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Devices
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| 1982 |
First device for measuring localized muscle fatigue, the Muscle Fatigue Monitor |
[6] |
| 1984 |
First portable EMG myofeedback device, Myochip. |
[7] |
| 1989 |
The Back Analysis System |
[8] |
| 1997 |
First commercial EMG device with real-time indicator for line noise and signal clipping |
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| 1998 |
Introduced EMGworks® Data acquisition system with real time RMS and Power Spectrum feedback |
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| 1999 |
Marketed a Portable multi-channel EMG Datalogger, the Myomonitor® |
[14, 15] |
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| Concepts
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| 1979 |
Introduced motor unit action potential model for EMG signal |
[9] |
| 1981 |
Introduced the EMG Median Frequency parameter for measuring localized muscle fatigue |
[10] |
| 1985 |
Revived the use of spectral shift of the EMG signal for measuring localized muscle fatigue |
[11] |
| 1989 |
Introduced the use of EMG Median Frequency for assessing the effect of low-back pain |
[12] |
| 2005 |
Introduced the concept of using EMG to detect the to detect the presence of toxic compounds in the body |
[16] |
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References
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| [1] |
De Luca, C.J., LeFever, R.S. and Stulen, F.B, Pasteless electrode for clinical use. Medical and Biological Engineering and Comp., 17: 387-390, 1979. |
| [2] |
Basmajian, J.V. and De Luca, C.J. Muscles Alive (5th edition), Williams and Wilkins, Baltimore, MD, 1985. |
| [3] |
Broman, H., Bilotto, G. and De Luca, C.J. A note on non-invasive estimation of muscle fiber conduction velocity. IEEE Transactions on Biomedical Engineering, 32: 341-344, 1985. |
| [4] |
Roy, S.H., De Luca, C.J. and Schneider, J. Effects of electrode location on myoelectric conduction velocity and median frequency estimates. Journal of Applied Physiology, 61: 1510-1517, 1986. |
| [5] |
De Luca, C.J. Merletti, R. Surface myoelectric signal cross-talk among muscles of the leg. EEG and Clin. Neurophysiol., 69: 568-575, 1987. |
| [6] |
Stulen, F.B. and De Luca, C.J. Muscle fatigue monitor: a non-invasive device for observing localized muscular fatigue. IEEE Transactions on Biomedical Engineering, 29: 760-768, 1982. |
| [7] |
McCarthy, C. and De Luca, C.J. A myofeedback instrument for clinical use. Journal for Rehabilitation Research and Development, 21: 39-44, 1984. |
| [8] |
Roy, S.H., De Luca, C.J., Casavant, D.A. Lumbar muscle fatigue and chronic lower back pain. Spine, 14: 992-1001, 1989. |
| [9] |
De Luca, C.J. Physiology and mathematics of myoelectric signals. IEEE Transactions on Biomedical Engineering, 26: 313-325, 1979. |
| [10] |
Stulen, F.B. and De Luca, C.J. Frequency parameters of the myoelectric signal as a measure of muscle conduction velocity. IEEE Transactions on Biomedical Engineering, 28: 515-523, 1981. |
| [11] |
De Luca, C.J. Myoelectric manifestations of localized muscular fatigue. CRC Critical Reviews in Biomedical Engineering, 11: 251-279, 1984. |
| [12] |
De Luca, C.J. Use of the surface EMG signal for performance evaluation of back muscles. Muscle and Nerve, 16: 210-216. 1993. |
| [13] |
De Luca, G. N., Johansson, A., Roy S. H., Cheng M.S., Gilmore L.D., Bergman, P., De Luca C.J. Sweat Test for the electromechanical stability of the EMG Electrode-skin Interface. Proceeding of the International Society for Electrophysiology and Kinesiology, 2004.
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| [14] |
Monitoring on the Move, Spinoff 2000, 38-39. 2000. |
| [15] |
Portable Electromyography, Nasa Tech Briefs,28(7): 36. 2004. |
| [16] |
De Luca, C.J., Buccafusco, J.J., Roy, S.H., De Luca, G., Nawab, S.H., The Electromyographic Signal as a Presymptomatic Indicator of Organophosphates in the Body. Muscle Nerve, 23;33(3): 369-376. 2005. |
| [17] |
G. De Luca, S. H. Roy, S. Cheng, P. Bergman, A. Johansson, D. Gilmore, and C.J., De Luca Electro-Mechanical Stability of Surface EMG Sensors.
Proceeding of the International Society for Electrophysiology and Kinesiology, 2006.
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