The Advantage of Delsys dEMG

July 10th, 2015|Categories: Blogs|Tags: |

A critical review by De Luca CJ and Kline JC June 2015 Technology for decomposing the EMG signal into individual motor unit action potentials (MUAPs) was introduced by us three decades ago (LeFever and De Luca, 1982). The Delsys [...]

The Onion-Skin Scheme: A Motor Unit Firing Scheme with Evolutionary Benefits

July 1st, 2015|Categories: Blogs|Tags: |

How are motor units controlled during voluntary contractions? This question has been a subject of debate for several decades amongst the neurophysiology community. A recent simulation study by Dr. Carlo J. De Luca and Dr. Paola Contessa1 compared two opposing [...]

SigMax: A Statistically Sound Approach to Explaining Motor Unit Synchronization

February 9th, 2015|Categories: Blogs|Tags: |

For several decades, studies throughout the motor control literature have claimed synchronization of motor unit firings result from common presynaptic branches, or “common inputs” shared by the motoneurons. However, the methods that support this notion have lacked necessary statistical rigor [...]

Innovation in EMG Signal Decomposition: A Novel Error Reduction Algorithm

February 9th, 2015|Categories: Blogs|Tags: |

Over the last half-century, numerous attempts have been made to decompose surface EMG signals into individual motor unit firings. Unfortunately, identifying these firings amidst ambient noise and the activity of dozens of other motor units is inherently subject to errors, [...]

Understanding post-stroke neuromuscular changes

January 1st, 2015|Categories: Blogs|Tags: |

Only a few studies have investigated the changes in the spectral characteristics of the surface electromyographic (sEMG) signal that are induced by neuromuscular modifications following a stroke. Also, little has been done to identify whether there is a relation between [...]