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.

Usefulness of cervical root magnetic stimulation in assessing proximal motor nerve conduction
To evaluate the reliability and utility of cervical root magnetic stimulation in exploring proximal motor conduction. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 23, 2015 Category: Neurology Authors: Dimitra Veltsista, Elisabeth Chroni Source Type: research

Heterogeneous MR arthrography findings in patients with subacromial impingement syndrome – Diagnostic subgroups?
Subacromial Impingement Syndrome (SIS) is frequently diagnosed, but treatment results vary greatly. It is increasingly reported that SIS symptoms are caused by various underlying mechanisms that need distinctive treatment strategies. We evaluated a set of specific MRI Arthrography (MRA) characteristics that have been related with underlying mechanisms for SIS in the literature, in patients with SIS. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 16, 2015 Category: Neurology Authors: Pieter Bas de Witte, Celeste L. Overbeek, Ana Navas, Jochem Nagels, Monique Reijnierse, Rob G.H.H. Nelissen Source Type: research

Heterogeneous MR arthrography findings in patients with Subacromial Impingement Syndrome - Diagnostic subgroups? -
Subacromial impingement syndrome (SIS) is frequently diagnosed, but its underlying mechanisms are unclear and treatment results vary greatly. In the recent past, it has been increasingly reported that SIS symptoms might be the result of various underlying mechanisms that might need distinctive treatment strategies. Our goal was to evaluate a comprehensive set of specific Magnetic Resonance Imaging arthrography (MRA) characteristics that have been related with several potential underlying mechanisms for SIS in the literature, in patients clinically diagnosed with SIS. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 16, 2015 Category: Neurology Authors: Pieter Bas de Witte, Celeste L. Overbeek, Ana Navas, Jochem Nagels, Monique Reijnierse, Rob G.H.H. Nelissen Source Type: research

Trunk muscle coactivation is tuned to changes in task dynamics to improve responsiveness in a seated balance task
In this study, the responsiveness of trunk motor control was investigated by changing the seat stiffness of an unstable seat. At decreasing levels of seat stiffness the probability of successfully balancing on the seat, speed of the seat, speed of the trunk relative to the seat (trunk-seat) and muscle activation of five trunk muscles were assessed. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 13, 2015 Category: Neurology Authors: Nathalie M.C.W. Oomen, N. Peter Reeves, M. Cody Priess, Jaap H. van Dieën Source Type: research

Adaptations to isolated shoulder fatigue during simulated repetitive work. Part I: Fatigue
Upper extremity muscle fatigue is challenging to identify during industrial tasks and places changing demands on the shoulder complex that are not fully understood. The purpose of this investigation was to examine adaptation strategies in response to isolated anterior deltoid muscle fatigue while performing simulated repetitive work. Participants completed two blocks of simulated repetitive work separated by an anterior deltoid fatigue protocol; the first block had 20 work cycles and the post-fatigue block had 60 cycles. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 13, 2015 Category: Neurology Authors: Calvin T.F. Tse, Alison C. McDonald, Peter J. Keir Source Type: research

Assessment of the variability of vastii myoelectric activity in young healthy females during walking: a statistical gait analysis
The knee is the key to stance stability, and the muscles of the quadriceps femoris group are the most direct source of extensor control [Perry,1992]. During walking, however, the knee extensor muscles are mainly used to restrain the shock-absorbing flexion during loading response; the quadriceps femoris eccentric contraction in the touching phase of the gait cycle (GC), indeed, represents the primary absorbing mechanism of impact during weight acceptance. In stance, the extensors act to decelerate knee flexion, while in swing they contribute to limb progression [Perry,1992]. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 13, 2015 Category: Neurology Authors: Francesco di nardo, Elvira maranesi, Alessandro mengarelli, Giacomo ghetti, Laura burattini, Sandro fioretti Source Type: research

Can self-report instruments of shoulder function capture functional differences in older adults with and without a rotator cuff tear?
Rotator cuff tears (RCT) are prevalent in older individuals and may compound age-associated functional declines. Our purpose was to determine whether self-report measures of perceived functional ability are valid for older patients with RCT. Twenty five subjects participated (12M/13F; age=63.9±3.0years); 13 with RCT and 12 controls (CON). Participants completed self-report measures of shoulder function (SST, ASES, WORC) and health-related quality of life (SF-36). Isometric joint moment and range of motion (ROM) were measured at the shoulder. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 9, 2015 Category: Neurology Authors: Meghan E. Vidt, Anthony C. Santago, Eric J. Hegedus, Anthony P. Marsh, Christopher J. Tuohy, Gary G. Poehling, Michael T. Freehill, Michael E. Miller, Katherine R. Saul Source Type: research

Feasibility of using combined EMG and kinematic signals for prosthesis control: a simulation study using a virtual reality environment
Transhumeral amputation has a significant effect on a person’s independence and quality of life. Myoelectric prostheses have the potential to restore upper limb function, however their use is currently limited due to lack of intuitive and natural control of multiple degrees of freedom. The goal of this study was to evaluate a novel transhumeral prosthesis controller that uses a combination of kinematic and electromyographic (EMG) signals recorded from the person’s proximal humerus. Specifically, we trained a time-delayed artificial neural network to predict elbow flexion/extension and forearm pronation/supination from ...
Source: Journal of Electromyography and Kinesiology - July 9, 2015 Category: Neurology Authors: Dimitra Blana, Theocharis Kyriacou, Joris M. Lambrecht, Edward K. Chadwick Source Type: research

The constant score and the assessment of scapula dyskinesis: proposal and assessment of an integrated outcome measure
The Constant-Murley score (CMS) is a popular measure of shoulder function. However, its ability to monitor the evolution of patients during rehabilitation after rotator-cuff repair is controversial. Moreover, CMS does not account for possible alterations in the scapulo-humeral coordination (SHC, scapula dyskinesis), which are apparent in variety of shoulder pathologies. To address these issues, a new formulation of CMS was firstly proposed, which rates the “affected-to-controlateral side difference in SHC” of a patient with respect to reference values of asymptomatic controls (Scapula-Weighted CMS). (Source: Journal of...
Source: Journal of Electromyography and Kinesiology - July 6, 2015 Category: Neurology Authors: Andrea Giovanni Cutti, Ilaria Parel, Andrea Pellegrini, Paolo Paladini, Rinaldo Sacchetti, Giuseppe Porcellini, Giovanni Merolla Source Type: research

Determining minimal stimulus intensity for mechanomyographic analysis
Mechanomyography (MMG) has recently shown promise in monitoring recovery of injured muscles. However, delivering a maximal percutaneous neuromuscular stimulus (PNS) could potentially be painful on severely damaged muscles. The aim of this paper was to determine whether delivering a sub-maximal PNS could still obtain accurate MMG recordings of muscle contraction time (Tc). The effect of muscle architecture on determining the minimal level of current was also investigated. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 3, 2015 Category: Neurology Authors: Danijel Tosovic, Laura Seidl, Estifanos Ghebremedhin, Mark J. Brown Source Type: research

Effect of exercise training on neuromuscular function of elbow flexors and knee extensors of type 2 diabetic patients
The effects of exercise training on neuromuscular function of arm and leg muscles in type 2 diabetic patients (T2D) was investigated. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 3, 2015 Category: Neurology Authors: I. Bazzucchi, G. De Vito, F. Felici, S. Dewhurst, A. Sgadari, M. Sacchetti Source Type: research

Optimising filtering parameters for a 3D motion analysis system
In the analysis of movement data it is common practice to use a low-pass filter in order to reduce measurement noise. However, the choice of a cut-off frequency is typically rather arbitrary. The aim of the present study was to evaluate a new method to find the optimal cut-off frequency for filtering kinematic data. In particular, we propose to use rigid marker clusters to determine the dynamic precision of a given 3D motion analysis system, and to use this precision as criterion to find the optimal cut-off frequency for filtering the data. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - July 2, 2015 Category: Neurology Authors: Sander Schreven, Peter J. Beek, Jeroen B.J. Smeets Tags: Research paper Source Type: research

How does lever length and the position of its axis of rotation influence human performance during lever wheelchair propulsion?
The purpose of this study was to investigate empirically how lever length and its axis of rotation position influences human performance during lever wheelchair propulsion. In order to fulfill this goal, a dedicated test stand allowing easy implementation of various lever positions was created. In the experiment, 10 young, healthy, male subjects performed 8 tests consisting of propulsion work with levers of different lengths and lever axis of rotation positions. During tests heart rate, oxygen consumption and EMG assessment of 6 muscles was carried out. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - June 24, 2015 Category: Neurology Authors: Krzysztof Fiok, Anna Mróz Source Type: research

Concurrent validity and reliability of a novel wireless inertial measurement system to assess trunk movement
Assessment of movement dysfunctions commonly comprises trunk range of motion (ROM), movement or control impairment (MCI), repetitive movements (RM), and reposition error (RE). Inertial measurement unit (IMU)-systems could be used to quantify these movement dysfunctions in clinical settings. The aim of this study was to evaluate a novel IMU-system when assessing movement dysfunctions in terms of concurrent validity and reliability. (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - June 20, 2015 Category: Neurology Authors: C.M. Bauer, F.M. Rast, M.J. Ernst, J. Kool, S. Oetiker, S.M. Rissanen, J.H. Suni, M. Kankaanpää Source Type: research

Effects of Kinesio taping on scapular kinematics of overhead athletes following muscle fatigue
Scapular kinematics alterations have been found following muscle fatigue. Considering the importance of the lower trapezius in coordinated scapular movement, this study aimed to investigate the effects of elastic taping (Kinesio taping, KT) for muscle facilitation on scapular kinematics of healthy overhead athletes following muscle fatigue. Twenty-eight athletes were evaluated in a crossover, single-blind, randomized design, in three sessions: control (no taping), KT (KT with tension) and sham (KT without tension). (Source: Journal of Electromyography and Kinesiology)
Source: Journal of Electromyography and Kinesiology - June 20, 2015 Category: Neurology Authors: Gisele Garcia Zanca, Bruno Grüninger, Stela Márcia Mattiello Source Type: research