Cookies on this website

We use cookies to ensure that we give you the best experience on our website. If you click 'Accept all cookies' we'll assume that you are happy to receive all cookies and you won't see this message again. If you click 'Reject all non-essential cookies' only necessary cookies providing core functionality such as security, network management, and accessibility will be enabled. Click 'Find out more' for information on how to change your cookie settings.

A number of descending drives tend to synchronise motor unit firings to particular frequencies during sustained voluntary contractions. Detection of these drives is usually performed using bivariate or multivariate measurements. We investigate the possibility of detecting these drives from single motor unit recordings. A computational model of the surface electromyogram was used to examine the variability of the instantaneous firing rate intervals of synchronised motor unit trains. The model generated distributions of this variability suggest that they arise from a mixture of two separate Gaussian distributions. A constrained version of the expectation-maximization algorithm is used to determine the component density means which are related to the descending drive frequencies. This algorithm is tested against a variety of drive frequencies and drive strengths.

Type

Conference paper

Publication Date

01/12/2003

Volume

2

Pages

1762 - 1765