Abstract. NASCIMENTO, Gerlane Karla Bezerra Oliveira et al. Eletromiografia de superfície do músculo masseter durante a mastigação: uma revisão sistemática. Eletromiografia de superfície em músculos inspiratórios de indivíduos adultos e idosos: revisão sistemática. No Thumbnail [%x80]. Eletromiografia de Superficie na Terapia Miofuncional [Adriana Rahal] on *FREE* shipping on qualifying offers.
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Design of a computerized system to evaluate the cardiac function during dynamic exercise abstract. Statistical power analysis for the behavioral sciences. The authors also reported that possibly the decreased and subsequent stabilization of the HRV is associated with increased sympathetic contribution after AT.
Eletromiografia de superfície do músculo masseter durante a mastigação: uma revisão sistemática
Some limitations of this study must be considered, such as, metabolic and ventilatory variables were not evaluated using ergospirometry. The procedure was explained to each subject separately and signed consent. To verify cervical pain symptoms in a group of office workers and investigate electromyographic signals of the upper trapezius muscle of office workers at rest.
Estimation of the anaerobic threshold from heart rate variability in an incremental swimming test. Although this study did not have as its objective the determination of AT, our results of HR, HRV and sEMG reflect changes in cardiac autonomic control and muscular system that at any given time of the exercise protocol may indicate adjustments of the cardiovascular and muscle systems in an attempt to meet the increased demand in higher intensities of exercise.
Clinical Physiology and Functional Imaging, 34 2 In a study by Alonso et al. Symptom-limited exercise testing The exercise test was performed by a cardiologist to evaluate the clinical and functional aspects of the cardiovascular system, as well as to detect possible changes that indicate against the participation of volunteers in research.
Occupational health; Electromyography; Muscle strength; Neck pain. The main findings of the present study were that there was no difference in the responses of HR, HRV and sEMG when compared the same power output between the protocols of dynamic exercise in continuous steps performed at 60 rpm and 80 rpm.
Journal of Applied Physiology69 2 No difference in the responses of sEMG, HR and HRV were seen when compared to the same power output between the protocols of dynamic exercise in continuous steps performed at 60 rpm and 80 rpm, indicating that the highest cadence does not promote different responses both in relation to the electrical activity of the muscles as to cardiac autonomic modulation, which suggests that even the activity performed at the highest cadence possibly not cause early muscle fatigue, and that in relation to cardiac autonomic modulation, the cardiac protection provided by vagal modulation is the same in both cadences.
The energy distribution of each surface electromyography signal frequency, the synchronization between machine and patient and between muscles, acetylcholinesterase enzyme activity, and work of breathing and rapid shallow breathing indices were calculated in each weaning attempt.
Cycling efficiency is related to the percentage of type I muscle fibers. Standad of measurement, physiological interpretation and clinical use. It is worth noting that no subject was a smoker, drank alcohol or ingested any medication, in which factors could influence the responses of HR and HRV parasympathetic and sympathetic modulation during exercise testing.
In relation to symptom-limited exercise test, as expected, a significant increase was observed in HR and systolic blood pressure SBPand decrease in diastolic blood pressure DBP from rest to peak exercise. However, the preferred cadences of cyclists do not coincide with lower oxygen consumption, but instead with less development of muscle fatigue Takaishi et al.
The HR, BP superficif ECG were recorded before the testing, at the end of 30s at each power output, and in the recovery period 1, 3, 6 and 9 minutes. Neural circulatory control during exercise: A test was performed in the sitting position on an electromagnetic braked cycle ergometer Quinton CorivalGroninger, Netherlands at an initial power of 25 W for a warm-up period of 2 minutes.
Introdução a Eletromiografia
Brazilian Journal of medical and Biological Research32 1 Brazilian Journal of medical and Biological Research35 6 Physical exercise promotes physiological adjustments in various systems within the body including the neuro-muscular, cardiopulmonary, thermoregulatory and neuro-endocrine systems Ribeiro et al. The study hypothesis was that the protocol used in higher cadence 80 rpm promotes more pronounced responses of cardiac autonomic system and of myoelectric activity of the vastus lateralis compared to the protocol with the lower supfrficie 60 rpm.
The electrodes were placed at half the distance between the greater trochanter and lateral femoral condyle, coupled by a specific terminal device adapted active differential, which is responsible for the differentiation between the two poles of the electrodes. In both protocols during continuous dynamic exercise testing 60 rpm and 80 rpm the maximum intensity in common for all volunteers was W and therefore the analysis of variable intensities between 25W to W was considered.
Surface electromyography in respiratory muscles diaphragm, external intercostal and sternocleidomastoid muscles was recorded in a young se affected by self-poisoning with an unknown amount of parathion to determine the muscle activity level during several weaning attempts from mechanical ventilation.
Acta Physiologica Scandinavica, 3 There were no significant differences in HR between the protocols Eletromioggrafia 1. While the primary hypothesis of the study was not supported the protocol performed with a higher cadence 80 rpm promoted the earliest responses of HR and cardiac parasympathetic modulation in relationship to the protocol with lower cadence 60 rpm.
Eight healthy men cyclists who have trained for at least two years were evaluated. The formation of positive waves occurred before and after work, affecting ten workers. Journal of Science and Medicine in Sporteletromipgrafia 2 The heart rate variability HRV and surface electromyography sEMG are important tools in the evaluation of cardiac autonomic system and neuromuscular parameters, respectively.
Considering the assessment of sEMG in cyclists, some studies have used this parameter to evaluate different cadences on activity performed using the eletromiografiaa Dantas et al.
Experimental Physiology98 4 The advantages of HRV include being a non-invasive procedure with a low proportion of errors, using relatively simple equipment at low cost Catai et al. All tests were performed at the same time of day afternoonthus avoiding possible interference of circadian eletromigorafia in the behavior of the leetromiografia variables. Revista Portuguesa de Cardiologia14 3 Nevertheless, other noninvasive parameters also have been utilized providing significant information related to exercise including: The chi-square test, student’s t-test and Mann-Whitney test were applied.
From a new section containing only information about the RMS of the period of muscle contractions, each signal was divided in consecutive samples which were analyzed in the RMS and Median Frequency MF specific of each window, and the values of the latter was obtained by fast Fourier transform FFT squared.
Moreover, blood lactate measured simultaneously with cardiac autonomic modulation and surface electromyography responses were not collected allow us to determine the intensity corresponding to the AT and thus relate the behavior of aerobic to anaerobic predominance in both protocols during dynamic exercise.
The pre-workday period was also relevant, demonstrating that actions engaged in before work can positively or negatively influence muscle conditions for the workday.