Muscle fatigue is a common experience in daily life. Many authors have defined it as the incapacity to maintain the required or expected force, and therefore, force, power and torque recordings have been used as direct measurements of muscle fatigue. In addition, the measurement of these variables combined with the measurement of surface electromyography (sEMG) recordings (which can be measured...

Myoelectric pattern recognition is widely used to control upper limb prostheses. However, the non-stationary characteristics of electromyography (EMG) signals, caused by physiological changes (e.g. muscle fatigue) or non-physiological electrode- skin impedance), hinder use prostheses and deteriorate performance myoelectric system. In this paper, a set robust features proposed be integrated with...

The Glazer Protocol: Evidence-Based Medicine Pelvic Floor Muscle (PFM) Surface Electromyography (SEMG) Howard I. Glazer, PhD, BCB-PMD and Claudia R. Hacad, PT, BCB-PMD Weill College of Medicine, Cornell University, Ithaca, NY, and New York Presbyterian Hospital, New York, NY; Federal University of São Paulo, UNIFESP, São Paulo, Brazil, and Urinary Continence Center of Lithocenter, Nossa Senhora...

Because of the approximate linear relationship between muscle force and muscle activity, muscle forces are often estimated during maximal voluntary isometric contractions (MVICs) from torque and surface electromyography (sEMG) measurements. However, sEMG recordings from a target muscle may contain cross-talk originating from nearby muscles, which could lead to erroneous force estimates. Here we...

BACKGROUND Patients suspected of having swallowing disorders, could highly benefit from simple diagnostic screening before being referred to specialist evaluations. We introduce surface electromyography (sEMG) to carry out rapid assessment of such patients and propose suggestions for standardizing sEMGs in order to identify abnormal deglutition. METHODS Specifics steps for establishing standa...

PURPOSE To analyze possible correlations between the electrical activity of masseter and temporal muscles, Bite Force (BF), and Morphological Facial Indices (MFI). METHODS The study involved 43 young adults, both genders, 18 to 37 years old. The individuals were submitted to: face measurement to calculate MFI; Masseter and Temporal Surface Electromyography (sEMG) and BF measurements on right ...

OBJECTIVES Muscle stiffness increases during muscle contraction. The purpose of this study was to determine the strength of the correlation between myotonometric measurements of muscle stiffness and surface electromyography (sEMG) measurements during various levels of voluntary isometric contractions of the biceps brachii muscle. SUBJECTS Eight subjects (four female; four male), with mean age...

Amyotrophic Lateral Sclerosis (ALS) is a fast-progressing disease with no cure. Nowadays, needle electromyography (nEMG) the standard practice for electrodiagnosis of ALS. Surface (sEMG) emerging as more practical and less painful alternative to nEMG but still has analytical technical challenges. The objective this work was study feasibility using set morphological features extracted from sEMG ...

Hands are important parts of a human body. It is not only the main tool for people to engage in productive labor, but also an communication tool. When hand moves, body produces kind signal named surface electromyography (sEMG), which electrophysiological that accompanies muscle activity. contains lot information about movement consciousness. The bionic limb driven by multi-degree-freedom contro...

This work describes a hybrid adaptive filtering technique, designed to optimize the removal of the electrocardiogram (ECG) from surface electromyography (sEMG) recordings. Using the adaptive noise cancellation technique (ANC), we minimize the error gradient based on combined Time-Frequency filtering enhancements. The validation on artificially prepared signals with a real data basis shows bette...