The aim of this study was to investigate the effects of whole-body vibration (WBV) on vastus lateralis (VL) surface electromyographic (sEMG) amplitude during an isometric semi-squat exercise, using two different frequencies, and to verify the influence of additional filters on the analyzed sEMG signal's characteristics. Forty physically active women were randomly divided into two groups with 20 members each: one group performed an isometric semi-squat exercise at 30 Hz - while the other group performed the same exercise protocol at 50 Hz. The sEMG amplitude of the VL muscle was recorded during the exercise protocols in two conditions: with and without vibration. After removing vibration-induced artifacts using digital filters, sEMG amplitude of VL increased significantly (p < 0.05) without differences between the frequencies. The results of this study suggest that WBV at 30 Hz and 50 Hz increased the sEMG amplitude of the VL muscle during an isometric semi-squat exercise. Furthermore, applying sEMG filters during signal processing of WBV is necessary, because motion artifacts from the vibration frequencies may contribute to the contamination of the sEMG amplitude.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5592294 | PMC |
Publication Analysis
Top Keywords
Similar Publications
Surface Electromyographic Activities of Submental and Infrahyoid Muscles: Comparisons Based on Residue, Penetration and Aspiration.
J Oral Rehabil
January 2025
Department of Otolaryngology-Head and Neck Surgery, Faculty of Medicine, Gazi University, Ankara, Turkey.
Background: Surface electromyography (sEMG) has been used in a wide range of studies conducted in the field of dysphagia.
Objectives: The main aim of this case-control study is to obtain how submental and infrahyoid sEMG signals differ based on residue, penetration and aspiration.
Methods: A total of 100 participants (50 patients with suspected dysphagia and 50 healthy controls) were enrolled in the present study.
The Role of Bitter-Tasting Substances in Salivation and Swallowing: Results of the Pilot Study.
Foods
January 2025
Federal Research Centre of Nutrition, Biotechnology and Food Safety, Moscow 109240, Russia.
The aim of this study was to investigate the effects of caffeine, vanillin, and epigallocatechin gallate on salivation and swallowing and to find ways to correct their negative effects. Solutions of these substances with an equivalent intensity of bitter taste were compared for this purpose. To compensate for their effect, solutions of adenosine monophosphate, saliva substitute, and their combination were used.
View Article and Find Full Text PDFMuscle activity mapping by single peak localization from HDsEMG.
J Electromyogr Kinesiol
January 2025
Department of Biomedical Engineering, Faculty of Engineering, Lund University, Lund, Sweden.
Human-machine interfaces using electromyography (EMG) offer promising applications in control of prosthetic limbs, rehabilitation assessment, and assistive technologies. These applications rely on advanced algorithms that decode the activation patterns of muscles contractions. This paper presents a new approach to assess and decode muscle activity by localizing the origin of individual temporal peaks in high-density surface EMG recordings from the dorsal forearm during low force finger extensions.
View Article and Find Full Text PDFA Soft Robotic Sleeve for Physiotherapy: Improving Elbow Rehabilitation in Baseball Pitchers.
Physiother Res Int
January 2025
Department of Biomedical Engineering, University of Engineering and Technology (UET) Lahore, Narowal Campus, Narowal, Pakistan.
Background And Purpose: Throwing a baseball involves intense exposure of the arm to high speeds and powerful forces, which contributes to an increasing prevalence of arm injuries among athletes. Traditional rigid exoskeletons and rehabilitation equipment frequently lack portability, safety, ergonomic design, and affordability. Traditional rehabilitation approaches frequently require therapist monitoring, resulting in therapy delays.
View Article and Find Full Text PDFSurface electromyography vs clinical outcome measures after robot-assisted gait training in patients with spinal cord injury after post-acute phase of rehabilitation.
Ann Agric Environ Med
December 2024
Department of Rehabilitation, Medical University of Warsaw, Warsaw, Poland.
Introduction And Objective: Surface electromyography (sEMG) measurements are a valid method for sublesional muscle activity following spinal cord injury (SCI). In the literature there are few reports evaluating the effect of robotic assisted gait training (RAGT) on the sEMG properties change in SCI patients. The aim of this study was to evaluate the influence of RAGT on observed change of sEMG, and in 64 incomplete SCI patients in the sub-acute stage in relation to functional scales.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!