Generalized Morse continuous wavelet transforms can be effectively applied to electromyography and electrocardiography to isolate and quantify features like muscle bursts and heart rate variability.
Generalized Morse continuous wavelet transforms provide enhanced time and frequency localization for extracting quantifiable features from physiological signals such as EMG and ECG.
Theoretical and practical advances in time-frequency analysis, in general, and the continuous wavelet transform (CWT), in particular, have increased over the last two decades. Although the Morlet wavelet has been the default choice for wavelet analysis, a new family of analytic wavelets, known as generalized Morse wavelets, which subsume several other analytic wavelet families, have been increasingly employed due to their time and frequency localization benefits and their utility in isolating and extracting quantifiable features in the time-frequency domain. The current paper describes two practical applications of analysing the features obtained from the generalized Morse CWT: (i) electromyography, for isolating important features in muscle bursts during skating, and (ii) electrocardiography, for assessing heart rate variability, which is represented as the ridge of the main transform frequency band. These features are subsequently quantified to facilitate exploration of the underlying physiological processes from which the signals were generated.This article is part of the theme issue 'Redundancy rules: the continuous wavelet transform comes of age'.
Wachowiak et al. (Mon,) conducted a other in Electrocardiography and electromyography signal analysis. Generalized Morse continuous wavelet transform was evaluated. Generalized Morse continuous wavelet transforms can be effectively applied to electromyography and electrocardiography to isolate and quantify features like muscle bursts and heart rate variability.