نتایج جستجو برای: emg 7
تعداد نتایج: 652795 فیلتر نتایج به سال:
Spontaneous electromyographic (EMG) activity of the oviduct recorded in vivo in untreated, estrogen-treated, and progesterone-treated castrated rabbits was found to exhibit two main patterns: short spike bursts lasting 1-10 s and long trains of action potentials lasting several minutes, which constituted the major component of EMG activity. After estrogen treatment, both wet weight and noradren...
The purpose of this study was to evaluate the electromyographic (EMG) activity of the masseter and temporalis muscles and the skeletal and dental behavior of children having slow maxillary expansion with a quadhelix appliance. The study sample consisted of 30 children (mean age = 7 years 4 months; 17 girls/13 boys) diagnosed with a unilateral posterior crossbite. Lateral cephalometric tracing a...
Background: Neurofeedback (NF) in children with attention-deficit/hyperactivity disorder (ADHD) has been investigated in a series of studies over the last years. Previous studies did not unanimously support NF as a treatment in ADHD. Most studies did not control for unspecific treatment effects and did not demonstrate that self-regulation took place. The present study examined the efficacy of N...
INTRODUCTION Electromyography (EMG) is used extensively to determine the muscle activation patterns of neuromuscular functions such as motor control, posture, and movement [1,2]. The onset of the EMG activity is a marker for the onset of active control and therefore is one of the most common parameters evaluated from EMG records [3], but there is no standard method to determine this parameter [...
OBJECTIVE To test the hypothesis that prolonged motor recovery after long-term ventilation may be due to polyneuropathy and can be foreseen at an early stage by electromyography (EMG). DESIGN Cohort study with an entry period of 18 months. Polyneuropathy was identified by EMG studies in the intensive care unit (ICU). During a 1-year follow-up, amount of time was recorded to reach a rehabilita...
26 Rectification of EMG signals is a common processing step used when performing EEG-EMG 27 coherence and EMG-EMG coherence. It is well known, however, that EMG rectification alters 28 the power spectrum of the recorded EMG signal (interference EMG). The purpose of this study 29 was to determine whether rectification of the EMG signal influences the capability to capture the 30 oscillatory inpu...
Excessive muscle load and fatigue may lead to disorders of the musculoskeletal system [1, 2]. Load and fatigue of the musculoskeletal system can be assessed with usage of non-invasive surface electromyography (EMG) [3]. Studies indicate, that the EMG signal is affected not only by muscle force and fatigue, but also by subcutaneous layer [4, 5]. Fatty tissue layer between the electrode and the m...
The purpose of this study was to assess the effects transverse friction massage (TFM) on electromechanical delay components and complexity surface activity in rectus femoris (RF) vastus medialis (VM) muscles identify possible mechanisms behind TFM-induced alterations dynamics RF VM activity. Seven female five male healthy subjects participated study. generated maximal voluntary isometric contra...
Objective: Habitual walking is important for health and can be measured with accelerometry, but accelerometry does not measure physiological effort relative to capacity. We compared accelerometer-measured absolute intensity electromyography (EMG)-measured muscle activity between people low versus excellent aerobic fitness levels during their habitual walking. Methods: Forty volunteers (19 women...
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