Special Issue "The Evaluation of Exercise Using Electromyography"
A special issue of Sports (ISSN 2075-4663).
Deadline for manuscript submissions: 31 October 2019
Electromyography is a diverse tool used to evaluate neuromuscular function through the analysis of the electrical activity of contracting skeletal muscle fibers. Specifically, the electromyographic signal provides global information related to the action potentials of the motor units within the pickup range of the recording electrodes. This technique is widely utilized across many fields, with therapeutic, clinical, and human performance applications.
The electromyographic technique is commonly used to examine changes in muscle activation during various forms of static (e.g., isometric muscle actions) and dynamic (e.g., cycling, running, isolated concentric and eccentric muscle actions) exercise. For example, electromyographic responses from active muscle reflect the motor control strategies (i.e., motor unit recruitment, motor unit firing rates, motor unit synchronization) associated with changes in force production and the development of fatigue specific to a given task.
The aim of this Special Issue is to deliver new insight into the use of electromyography to assess neuromuscular function during exercise and promote novel applications. We hope that this knowledge will help provide coaches, clinicians, and other health and sport professionals with valuable information that can be used to establish new training methods, therapeutic strategies, and assessment techniques.
Prof. Clayton L. Camic, Ph.D.
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sports is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 350 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- neuromuscular function
- neuromuscular fatigue
- muscle activation
- sports performance
- motor control strategies
- motor unit recruitment
- motor unit firing rates
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
1. The Effects Of Attentional Focus On Power Production During Bench-Press
Attila J. Kovacs, Jonathan R. Flintchum, Michael Schiller, Clayton L. Camic
Abstract: Over the past decade a growing body of literature has demonstrated the benefits of an external focus of attention compared to an internal focus of attention during motor performance. This pattern of results has been explained by the constrained action hypothesis, whereby adopting an external focus of attention allows the system to self-organize, resulting in more efficient and automated motor performance and learning. While many studies focused on the effects of different attentional foci during skill acquisition, relatively few studies have been reported investigating these effects on skill performance using a well-learned dynamic task. Therefore, the purpose of this study was to compare muscle power production during a bench-press task under different foci of attention conditions. Participants (n = 26; age 18-22) were undergraduate students/athletes that have been regularly performing weightlifting activities two times a week, for a minimum of one year. Following a standardized warm-up, participants completed five repetitions of bench press at 45% load of their one repetition maximum (1RM) using a Smith machine. Power output was recorded by a MyotestPro device attached to the barbell. The task required participants to propel the barbell with weights as high and as fast as possible. Power output was assessed under three different conditions: external focusing instructions (EF) required to focus attention on the barbell and to try to propel it as high as possible; internal focusing instructions (IF) required to focus attention on contracting the pectoral muscles during the task; and no focusing (NF) condition in which participants did not receive any type of instruction. Data analysis, using repeated measures ANOVAs, indicated significant (P < 0.05) differences among conditions. Power production was significantly greater under the EF condition compared to the IF condition, while performances under IF and NF conditions were not different. Additionally, there was a significant decrease in muscle activation (EMG RMS) for the triceps brachii muscle under the EF condition, compared with the IF and NF conditions. This pattern of reduced muscle activation and higher power output suggests that adopting an EF might improve the efficiency movement control during dynamic movements. Conversely, lower power output, and increased muscle activation of the pectoralis major was detected under the IF condition compared with the EF and NF conditions. These findings might be considered when designing training protocols for athletes with the purpose of maximizing their power production.