View clinical trials related to Muscle Weakness.
Filter by:Due to an accident, pneumonia or surgery, patients can have severe shortness of breath or lung damage to such an extent that it compromises vital functions. At such times, mechanical ventilation can be lifesaving. The ventilator temporarily takes over the function of the respiratory muscles to ensure adequate uptake of oxygen and removal of carbon dioxide. Mechanical ventilation can usually be stopped quickly after the initial disease has been treated. Unfortunately, in up to 25-40% of ventilated patients it takes several days to weeks before mechanical ventilation can be discontinued, even after treatment of the initial disease. This phenomenon is termed weaning failure. Weakness of the respiratory muscles, such as the diaphragm, is one of the leading causes of weaning failure. Like other skeletal muscles, the diaphragm can become weakened if it is used too little. This happens often during mechanical ventilation because of excessive assistance provided by the ventilator or use of sedative medication. Excessive activity of the diaphragm can also lead to damage and weakness, just like in other muscles that have to perform excessive amounts for a prolonged period of time. Additionally, excessive work by the diaphragm might have a direct damaging effect on the lungs, which leads to a vicious cycle. As such, it is very important to find a balance between resting the diaphragm (which may lead to weakness) and placing excessive work on the diaphragm (which can damage the diaphragm and possibly the lungs). In this study, the investigators want to test whether insufficient activity and excessive activity of the diaphragm during mechanical ventilation can be prevented or reduced. The investigators plan to measure the diaphragm activity in 40 participants on mechanical ventilation. Participants will be randomly assigned to the intervention group or the control group. In the intervention group, ventilator support levels will be adjusted according to the observed diaphragm activity, in an attempt to ensure adequate diaphragm activity. The control group receives usual care. The hypothesis is that adjusting the level of support provided by the ventilator is a feasible method to improve the time that the diaphragm operates within acceptable levels of activity over a 24 hour period.
Intensive care unit acquired muscle weakness (ICUAW), is a common disease which influence rehabilitation, extend mechanical ventilation and length of stay in intensive care unit, and affect quality of life at hospital discharge. To prevent ICUAW, different strategies of early mobilization are recommended. But all cannot be applied in all ICU patients. Some of them benefit from heavy therapies like circulatory assistance or renal replacement therapy for example, that limit mobilization. Cycloergometer is a tool that allows continuous passive mobilization in bedridden and even unconscious patients. Neuromuscular electrical stimulation (NMES) is an alternative that helps preserve muscle mass and limit muscle atrophy. Early bedside cycle exercise coupled with NMES is an interesting new approach where application of an electrical stimulation along specific motor nerves on each lower limb, generates muscles contractions and pedaling on cycloergometer. The aim of this study is to evaluate safety and feasibility of this coupled technique called Functional Electrical Stimulation (FES) Cycling, in ICU patients.
The aim of this study is to compare the effectiveness of different verbal instruction on pelvic floor muscle contraction among males. Pelvic floor contraction will be measured via ultrasound.
In this longitudinal prospective cohort study including young people with anterior cruciate ligament reconstruction (ACLR), the aims are to 1) study the association between different measures of muscle function and early future of knee osteoarthritis (OA) assessed as patient-reported pain, 2) explore potential associations between muscle function and features indicative of early radiographic OA measured with MRI, and early detection of OA in biomarker profiles, respectively, 3) monitor the patients' functional status, and early OA development over time and 4) investigate the prevalence of early knee OA in individuals 1 and 3 years post ACLR, respectively, compared to non-injured controls.The main hypothesis is that knee extensor weakness predicts future symptomatic OA of the knee (KOOS pain).
MYASTHENIA GRAVIS (MG) is an autoimmune disease characterized by varying degrees of muscle weakness and fatigability worsened with exertion and relieved with rest。Thymectomy plays an important role in the management of these patients because a consistent association between myasthenic and thymic pathology has been recognized.The need for prolonged mechanical ventilation in these patients after thymectomy is determined by their preoperative condition and various perioperative risk factors. Leventhal et al proposed a preoperative scoring system to predict the need for postoperative mechanical ventilation in myasthenic patients undergoing thymectomy based on the following 4 criteria: duration of MG, chronic respiratory disease, dose of pyridostigmine, and vital capacity. However, some investigators discovered that the Leventhal criteria may not be the sole benchmark and that other criteria such as severity of myasthenia,history of myasthenic crisis, and presence of thymoma may be more important in predicting the necessity for prolonged mechanical ventilation after thymectomy. Naguib et al described multivariate determinants of the need for postoperative ventilation after thymectomy in MG patients predominantly on the basis of pulmonary function tests. In addition, the prevalence and presentation of MG may be variable among different ethnic groups. However, there are very few large studies investigating the determinants of prolonged mechanical ventilation after thymectomy. The authors describe the parameters associated with prolonged mechanical ventilation after trans-sternal thymectomy at their institution.
Decreased muscle mass (sarcopenia) and strength (dynapenia) are common during aging, with a rate of muscle mass loss that is approximately 6% per decade between 30 and 70 years of age. Muscle mass loss results in reduced strength and physical function (frailty), increased risk for falls and bone fractures, and decreased quality of life. The age-related decrease in testosterone plays a key role in the loss of muscle mass and strength for aging males. There is increasing interest in nutritional and exercise strategies to prevent aging-related losses in muscle mass and strength. Sexual dysfunction has a high prevalence among men (31%), and include erectile difficulties (10%), lack of interest in sex (9%), and inability to achieve orgasm (7%). There are multiple causes including low testosterone. There is growing interest in natural supplements, and this study will compare under double blind procedures two natural supplements with placebo (Men's Perfect Multi Formula and Andro Vitality) that have been formulated by Purity Products. The supplements contain micronutrients, plant extracts, and herbs, with the primary bioactives Rhaponticum carthamoides and magnesium. Rhaponticum carthamoides, commonly known as maral root or Russian leuzea, is a perennial herb that grows in South Siberia, and has been used to enhance muscular and sexual function, but more evidence from properly designed human trials is needed to determine both efficacy and safety. The purpose of this study using a randomized, parallel group design, is to evaluate the effect of two supplements relative to placebo on strength, serum free and total testosterone levels, sexual function, mood state, and quality of life compared to placebo over a 6-week period in 120 males.
SARA-INT is a phase 2 interventional study performed in Europe and USA aimed to evaluate the clinical benefits, safety and tolerability of the investigational drug BIO101 administered orally for a six-month (26 weeks) duration to older patients, community dwelling men and women aged ≥65 years, suffering from age-related sarcopenia (including sarcopenic obesity), and at risk of mobility disability. The double-blind, placebo controlled clinical trial will collect and analyse data on physical performance and body composition and will specifically focus on the change of one functional measurement, the gait speed measured during the 400MW test plus the change of a highly standardised patient reported outcome (PRO), the physical function domain PF-10 at the SF-36 auto-evaluation questionnaire, in order to estimate the efficacy of BIO101 administered over 26 weeks, in preventing mobility disability in the target population.
Stroke is one of the leading causes of serious long-term impairment. According to the estimates, 12,500 people suffer a new or recurrent ischemic stroke in Chile annually, which shows the magnitude of the problem. Motor impairment of the upper limb (UL) stands out as the principal sequel after a CVA (50% of the patients experience it), and the Constraint-Induced Movement Therapy (CIMT) is the rehabilitation approach that shows more scientific evidence today. Even though patients reach certain recuperation levels through this approach, results are still insufficient since 50-80% of the patients continue having upper limb motor impairment after completing standard rehabilitation. Because of this, it is pertinent to conduct research to explore new rehabilitation strategies to reduce the impairment indexes and to provide information for decision making based on evidence. Recent studies on functional neuroimaging propose that there is an abnormal balance in the motor cortex excitability after stroke - relative under-excitability in the affected hemisphere and over-excitability in the unaffected hemisphere (with the consequent inhibitory influence on ipsilesional regions) in stroke patient with moderate motor impairment. This imbalance in the hemispheres function would limit the possibilities of a greater recovery. Then, in order to reestablish brain balance, the investigators proposed that the early introduction of noninvasive techniques of brain stimulation, such as tDCS, to the motor rehabilitation training could promote improvement of upper limb function in patients with stroke. However, we lack studies that confirm the benefits of using these techniques, define the most appropriate protocols, and determine what patients and under which evolving stages would be the best candidates for treatment. This study aims to "compare the effectiveness of seven days of bi-hemispheric tDCS, both active and sham, combined with modified CIMT (mCIMT) in the motor and functional recovery of the hemiparetic upper limb in hospitalized patients with subacute unihemispheric stroke at Hospital Clínico de la Universidad de Chile and Hospital San José". This comparison responds to the hypothesis that patients who receive bi-hemispheric and active tDCS combined with mCIMT (experimental group) get at least 30% more recovery of the paretic upper limb compared to the control group who receive sham bi-hemispheric tDCS plus mCIMT after a protocol of seven days treatment.
The aim of this study was to investigate the effectiveness of pelvic floor muscle and abdominal training in reproductive-age patients with stress urinary incontinence. This prospective randomized controlled design study included 64 female patients aged 18-49 years with stress urinary incontinence. The patients were divided into 2 groups (32 PFMT "Pelvic Floor Muscle Training" and 32 PFMT+AT "Abdominal Training") by computer-based randomization. The stress urinary incontinence type was assessed by a stress test, and the pelvic floor muscle strength was measured with a home biofeedback device. Voiding functions were assessed by a 3-day voiding diary and uroflowmetric test. The UDI-6 scale was used to assess the urinary symptoms, and the IIQ-7 scale was used to assess the quality of life. The follow-up measurements of both groups were obtained in the 0th, 4th, and 8th weeks.
The aim of this study is to T to compare the effectiveness of producing a pelvic floor muscle contraction by different verbal instruction. Pelvic floor muscle contraction will be measured displacement of the pelvic floor when imaged on ultrasound.