Effects of Physiological Parameters on Myoelectric Signal Quality
Author Information
Author(s): Ma Heather T, Zhang YT
Primary Institution: The Chinese University of Hong Kong
Hypothesis
This study investigates the effects of physiological factors on the signal-to-noise ratio (SNR) of a single myoelectric channel.
Conclusion
The SNR of a single myoelectric channel is dependent on force, neuronal, and muscular properties.
Supporting Evidence
- The SNR is associated with the voluntary contraction level.
- A model-based approach can provide insight into key factors affecting myoelectric control.
- The SNR can be enhanced by controlling physiological variables or contraction levels.
Takeaway
This study shows that how well a myoelectric control system works depends on how hard you try to move and the health of your muscles.
Methodology
Mathematical models were formulated based on motoneuron firing mechanisms, motor unit action potential, and signal processing to analyze the SNR.
Limitations
The study focuses only on physiological factors affecting SNR and does not consider other noise sources.
Digital Object Identifier (DOI)
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