Journal of Electromyography and Kinesiology This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Frenulectomy of the tongue and the influence of rehabilitation exercises on the sEMG activity of masticatory muscles
This study aimed to assess by surface electromyography (sEMG) the changes in sub-mental, orbicularis oris, and masticatory muscle activity after a lingual frenulectomy. Rehabilitation exercises in subjects with ankyloglossia, characterized by Class I malocclusion, were assessed as well. A total of 24 subjects were selected. Thirteen subjects (mean age 7 ± 2.5 years) with Class I malocclusion and ankyloglossia were treated with lingual frenulectomy and rehabilitation exercises, while 11 subjects (mean age 7 ± 0.8 years) with normal occlusion and normal lingual frenulum were used as controls. (Source: Journal of Electromyo...
Source: Journal of Electromyography and Kinesiology - April 22, 2015 Category: Neurology Authors: Simona Tecco, Aberto Baldini, Stefano Mummolo, Enrico Marchetti, Maria Rita Giuca, Giuseppe Marzo, Enrico Felice Gherlone Source Type: research

Residual force enhancement in humans: Current evidence and unresolved issues
Following an active lengthening contraction while maintaining activation constant, isometric force is elevated above that of a purely isometric contraction at the same final muscle length. This fundamental property of skeletal muscle is referred to as residual force enhancement. While the contractile mechanisms of residual force enhancement are still highly-debated, from an applied perspective this review focuses on the potential physiological relevance of residual force enhancement in human movement. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - April 22, 2015 Category: Neurology Authors: Wolfgang Seiberl, Geoffrey A. Power, Daniel Hahn Tags: Review Source Type: research

Fatigue Accumulation and Twitch Potentiation During Complex MVC-Relative Profiles
Fatigue accumulation can be significantly influenced by post-activation potentiation (PAP). This phenomenon leads to increased force generating capacity after a series of conditioning efforts. The purpose of our study was to examine how the order of force demands impacted muscle fatigue accumulation, and how fatigue was affected by potentiation. We had 33 participants complete one of four different force orders, consisting of 5 cycles of 12-second submaximal isometric “task plateaus”. Every order consisted of 8 force plateaus of the different intensity, arranged in a different ways. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - April 20, 2015 Category: Neurology Authors: Michael W. Sonne, Jim R. Potvin Source Type: research

Effect of different dental articulating papers on SEMG activity during maximum clenching
This study evaluated the influence of two different occlusal indicators (articulating papers of 40μm and 200μm) on muscular activity of the temporalis anterior (TA) and superficial masseter (MS) during maximum voluntary clenches (MVC), using surface electromyography (SEMG). It was hypothesized that an articulating paper positioned between dental arches during MVC elicits a different muscular activity compared with the occlusion on natural dentition (without the occlusal indicator). 30 healthy adult subjects with a complete, natural dentition were recruited; SEMG activity was recorded in the following experimental conditi...
Source: Journal of Electromyography and Kinesiology - April 20, 2015 Category: Neurology Authors: Davide Augusti, Gabriele Augusti, Dino Re, Claudia Dellavia, Aldo Bruno Giannì Source Type: research

Averaging methods for extracting representative waveforms from motor unit action potential trains
In the context of quantitative electromyography (EMG), it is of major interest to obtain a waveform that faithfully represents the set of potentials that constitute a motor unit action potential (MUAP) train. From this waveform, various parameters can be determined in order to characterize the MUAP for diagnostic analysis.The aim of this work was to conduct a thorough, in-depth review, evaluation and comparison of state-of-the-art methods for composing waveforms representative of MUAP trains. We evaluated nine averaging methods: Ensemble (EA), Median (MA), Weighted (WA), Five-closest (FCA), MultiMUP (MMA), Split-sweep medi...
Source: Journal of Electromyography and Kinesiology - April 20, 2015 Category: Neurology Authors: Armando Malanda, Javier Navallas, Javier Rodriguez-Falces, Ignacio Rodriguez-Carreño, Luis Gila Source Type: research