In a previous study, we reported that the mean square displacement calculated from the surface electromyography (sEMG) signal of low back muscles exhibits a plateaulike behavior for intermediate times 20 ms < t < 400 ms. This property indicates the existence of correlations in the signal for times much longer than the inverse of the median frequency (MF), which is calculated from the power spec...

Surface electromyography (sEMG) signals are closely related to the activation of human muscles and the motion of the human body, which can be used to estimate the dynamics of human limbs in the rehabilitation field. They also have the potential to be used in the application of bilateral rehabilitation, where hemiplegic patients can train their affected limbs following the motion of unaffected l...

Surface electromyography (sEMG) has been used in dance medicine research since the 1970s, but normalization procedures are not consistently employed in the field. The purpose of this project was to develop a portable anchored dynamometer (PAD) specifically for dance-related research. Due to the limited studies in the dance research literature using normalization procedures for sEMG data, a revi...

Ultrasound and electromyography (EMG) are two of the most commonly used diagnostic tools for the assessment of muscles. Recently, many studies reported the simultaneous collection of EMG signals and ultrasound images, which were normally amplified and digitized by different devices. However, there is lack of a systematic method to synchronize them and no study has reported the effects of ultras...

Surface electromyography (sEMG) is an indicator of muscle activity and is related to body movement and posture. One common shortcoming in the use of sEMG is to distinguish between small actions that require simultaneous contraction of number of adjoining muscles. This paper presents a method for subtle hand gesture identification from sEMG of the forearm by decomposing the signal into component...

Introduction Transcranial magnetic stimulation (TMS) is widely used to explore cortical physiology in health and disease. Surface electromyography (sEMG) appropriate for superficial muscles, but cannot be applied easily less accessible muscles. Muscle ultrasound (mUS) may provide an elegant solution this problem, fundamental questions remain. We the relationship between TMS evoked muscle potent...

1092-5171/04/3102-0225 ABSTRACT: The purpose of this study was to investigate the accuracy of the proprioceptive system in swallowing as compared to fist clenching. The role of surface electromyography (SEMG) biofeedback in replicating motor strength was also evaluated. It was hypothesized that (a) strength of muscle contraction during swallowing would be less accurately replicated than in a fi...

In this study, the process of muscular fatigue was examined using surface electromyography (sEMG) and continuous-wave near-infrared spectroscopy (cw-NIRS) simultaneously during an isometric hand grip exercise at 50% and 75% of the maximal voluntary contraction (MVC), sustained until volitional fatigue. The mean frequency of the sEMG decreased during the whole exercise, whereas the root mean squ...

BACKGROUND AND PURPOSE Although surgery has been widely accepted as the treatment of choice for stress urinary incontinence (SUI), there has recently been an increased interest in the conservative management of this condition. The aims of this study were to test the ability of a biofeedback-assisted pelvic-floor muscle exercise (PFME) program to affect symptoms of SUI in premenopausal women and...