جستجوی مقالات مرتبط با کلیدواژه "electrotherapy" در نشریات گروه "پزشکی"

Piriformis syndrome is a neuromuscular disease mostly caused by compression of the sciatic nerve by the piriformis muscle. The purpose of this study was to review the efficacy of different types of physiotherapy interventions on the signs and symptoms in patients with piriformis syndrome.

PubMed, Scopus, Web of Science and Google Scholar databases were searched to identify the published articles on the efficacy of physiotherapy interventions for the treatment of piriformis syndrome. The search was conducted from 1980 to august 2020. The used keywords were: piriformis syndrome, manual therapy, muscle stretch and electrotherapy. The references of the included studies were also reviewed. Finally, after studying 752 probable articles and removing irrelevant ones, 10 clinical trial articles were selected.

The included studies presented that manual therapy accompanying with stretching techniques show great improvement in range of motion of the hip joint and reducing pain in patients with piriformis syndrome. It is impossible to conclude a certain method of electrotherapy modalities such as laser and shockwave therapy for the treatment of patients, due to lack of valid studies.

Based on the current evidence, it seems that using muscle energy techniques (MET) with stretching of the piriformis and other hip muscles are effective in reduction of pain and disability and improvement of range of motion in patients suffering from piriformis syndrome.

The effects of general anesthesia and seizure caused by electroconvulsive therapy increase the risk of cardiovascular changes. This study aimed to evaluate the effect of reflexology on physiological indices after electroconvulsive therapy.

This clinical trial was performed on 56 patients with depression, who were selected by stratified random sampling after an electroconvulsive therapy and randomly allocated to the intervention and control groups. Data were collected using a demographic characteristics questionnaire and a vital sign record form and its tools. In the intervention group, vital signs were recorded after electroconvulsive therapy and patients’ vigilance, followed by performing a 20-minute reflexology session at reflex points. The vital signs were measured 10 minutes after the intervention and compared to vital signs immediately after vigilance and with the control group one hour later. In addition, data analysis was performed in SPSS version 24 using the Mann-Whitney U and Wilcoxon test.

In this study, the mean and standard deviation of blood pressure in the control and intervention groups were estimated at 111.60 ±11.47 and 114.92±10.54, respectively. Moreover, the results of Mann-Whitney and Wilcoxon test were indicative of a significant intra and intergroup difference between the control and intervention groups in terms of the mean and standard deviation of patients’ blood pressure. After the intervention, the mean and standard deviation of pulse in the control and intervention groups were reported to be 83.35±4.83 and 78.64±5.07, respectively. According to the results, there was an intra and intergroup difference between the control and intervention groups in terms of the mean and standard deviation of patients’ blood pressure.

According to the results of the study, reflexology affected the rapid improvement of physiological indices after ECT in depressed patients and caused relaxation and balance of physiological indices in these patients. Therefore, nurses can use this method as a branch of complementary medicine to be effective in balancing the physiological indices of patients.
Keywords: Depression, Electrotherapy, Physiological Indices, Reflexology

Hemiplegia after stroke is the most common cause of dexterity disorder in adults, which is associated with impairment in daily life activities. The aim of the present study was comparative assessment of the effects of movement therapy and electrotherapy on dexterity.

In the present clinical trial with before-after design, 16 patients with post-stroke hemiplegia received 36 sessions of treatment. Hand gross dexterity was measured using Minnesota instrument prior to, and 18th and 36th sessions after the intervention. Shapiro Wilk test, paired t-test, and Pierson correlation were used to analyze the data.

The significant increase of hand gross dexterity was noticed between before and 18th, 18th and 36th, and also before and 36th sessions after intervention in movement therapy group (p

The present study showed that movement therapy is effective in increasing hand dexterity all the time. But the continuation of electrotherapy has reverse effects on it.

Interferential current is one of the most popular kinds of electrical stimulation that are used in electrotherapy. Despite its clinical popularity، there have been limited studies to investigate how this stimulation protocol affects the nerve fibers. This study was aimed to develop a realistic model for the stimulation of nerve fibers by interferential currents and using that to assess the spatial and temporal activation patterns of fibers in response. The effect of the modulation frequency on the resultant neural activity was also evaluated. A model of the target tissue، including the skin، fat and muscle layers was implemented in COMSOL software to obtain the potential distribution induced by the current inside the tissue. Then the MRG model of the myelinated nerve fibers in NEURON environment was used to simulate the response of fibers at different positions in the tissue. A 4 KHz carrier frequency with the modulation of 1 to 250 Hz and stimulus strength of 1 to 99 mA was used in this study. The sensory fibers that are passing right beneath the electrodes are blocked in response to the applied high frequency currents and cannot conduct the action potentials. The sensory and motor fibers in other positions of the tissue can be activated based on the stimulus amplitude and the modulation frequency. The temporal activation pattern is at frequencies equal or twice of the modulation frequency. The excitation thresholds for fibers in a specific depth of the tissue are different based on their position relative to the electrodes، and even fibers that are outside the borders of the four electrodes can be activated. The results demonstrate how the block of sensory fibers may decrease the patient discomfort، and suggests that non-target fibers outside the region of electrode placement may also affected by the stimulation. Moreover، the results confirm the traditional claims about role of the modulation frequency in the firing frequency of nerve fibers.