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This paper explains problematic of EMG (electromyography) signal measurements. Described experiments are partition of complex project “MEDISYS” dedicated to design of modern medical equipment, consisting the latest technologies and IC. The design is based on low noise wireless measurement block (for ECG, EMG and EEG monitoring) followed by actuator block with mechanical constructions and control electronic.
This paper presents the development of low cost physiotherapy monitor system. Generally, muscle will generate a signal while it is activated. For ease of study, the system will be design based on one selected muscle. The design of the low cost monitoring system has two channel input and a small size base platform. Simple EMG signal is output from the low cost platform and sent into computer. The signal...
We proposed a wireless approach to electromyography measurements using an intrabody communication concept, which promises to be both easy-to-install and power-efficient. Employing our proprietary intrabody communication hardware we showed that modulated myoelectric signals transmitted through the human body contain enough information for myoelectric signal processing, both in frequency and time domain...
This paper focus on SFIT platforms for rehabilitations and FES therapy. Two systems will be described, one developed to support patients during motor therapy, when they are still hospitalized, and after discharge, at home; the other is a sleeve integrating multi-electrodes patches, designed to allow FES therapy and EMG acquisition for patients affected by tremor. These examples prove that it is possible...
Wireless sensor networks have become increasingly common in everyday applications due to decreasing technology costs and improved product performance, robustness and extensibility. Wearable physiological monitoring systems have been utilized in a variety of studies, particularly those investigating ECG or EMG during human movement or sleep monitoring. These systems require extensive validation to...
Current methods for assessing the efficacy of treatments for Parkinson's disease (PD) rely on physician rated scores. These methods pose three major shortcomings: 1) the subjectivity of the assessments, 2) the lack of precision on the rating scale (6 discrete levels), and 3) the inability to assess symptoms except under very specific conditions and/or for very specific tasks. To address these shortcomings,...
A 0.5 μVrms, 12 μW wirelessly powered patch type fabric sensor is presented for wearable body sensor network to continuously monitor personal bioelectric signals. Thick film electrodes are screen printed on the fabric with various metal components and their impedances of ˜100 kΩ are characterized. A 2-stage nested chopped analog readout front end (AFE) is optimized for the fabric sensor with reduced...
Monitoring and analysis of the fetal-heart and the uterine-muscle activity, referred to as electrohysterogram (EHG), is essential to permit timely treatment during pregnancy. While remarkable progress is reported for monitoring of the fetal cardiac activity, the EHG measurement and interpretation remains challenging, and limited knowledge is available on the underlying physiological processes. In...
We developed and tested the Berkeley Tricorder, a health monitoring device capable of measuring a subject's ECG, EMG, Blood Oxygenation, Respiration (via Bioimpedance), and motion--almost equivalent to the feature set of a hospital bedside patient monitor. Our focus has been a highly integrated design incorporating the radio and all associated circuitry on a single PCB. The device stores data locally...
The purpose of the study is to develop a method to monitor the patient during the exercise and advice him to stop as he is approaching the fatigue condition. The median frequency of the EMG signal has been recognized as the best indicator of the muscular fatigue during the voluntary contraction of skeletal muscles. The EMG signal is picked up from the body using a pair of biopotential electrodes....
This paper describes surface electromyogram (sEMG) recordings of the lumbar muscles during walking. The intent of these pilot trials was to evaluate the usefulness of the sEMG in differentiating between two groups of subjects: healthy subjects and those with lower back pain. An analysis of the features of the sEMG was performed for clearly defined walking activities for both subject groups. The results...
A conventional method for measuring abdominal pressure involves the use of a fluid-filled rectal catheter. However, this method has some drawbacks, so it is limited to ambulatory urodynamics monitoring study. In this study, we proposed a novel method for estimating abdominal pressure in non invasive manner by changes in bio-impedance and electromyographic (EMG) signals. As a preliminary, we compared...
We are investigating the use of body area networks (BANs), wearable sensors and wireless communications for measuring, processing, transmission, interpretation and display of biosignals. The goal is to provide telemonitoring and teletreatment services for patients. The remote health professional can view a multimedia display which includes graphical and numerical representation of patientspsila biosignals...
The mean integrated amplitude of both EEG and upper facial EMG activities was monitored during varied vigilance states including wakefulness, sleep, anesthesia and coma. Combined monitoring provided more useful information than that available from EEG alone. Drug-free wakefulness was consistently associated with high-amplitude (>10 mcV) EMG and low-amplitude (<20 mcV) EEG activity. Diminished...
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