View clinical trials related to Muscle Weakness.
Filter by:To determine, in a double blind trial, the effects of creatine supplementation during 12 weeks on muscle mass and function of community living older women subjected to resistance training. Material and methods: Fifty healthy older women will be selected for the study. All participants will be subjected to a progressive resistance training program using elastic bands and weights, consisting in three sessions per week lasting 1 hour. Participant will be randomly allocated in a double blind fashion, to receive creatine 5 g per day or an identical placebo. The training and supplementation period will last 12 weeks. At baseline and at the end of the study, body composition will be measured by dual energy x-ray absorptiometry, rectus femoris cross sectional height and surface will be measured by ultrasound, quadriceps strength will be measured in a quadriceps table and 12 minutes' walk will be assessed. The main outcome measure will be quadriceps cross sectional height. Expected results: We expect that creatine supplementation will increase rectus femoris height over and above the effect of resistance training.
The improvement in inspiratory muscle function might result in beneficial changes in breathing pattern during whole body exercise. The hypothesis is the effect of inspiratory muscle training as an adjunct to a pulmonary rehabilitation program improves the breathing pattern during an incremental cycle exercise.
Early mobilization (from the first day if possible), first passive and then passive and active, is recommended for critically ill patients in whom it reduces the duration of mechanical ventilation, the length of hospital stay, improves functional status, muscle strength and quality of life after hospital discharge. The early addition of leg bicycling on a cyclo-ergometer is now part of common practice in the ICU. It can preserve or improve muscle strength and further increase the beneficial effects of early mobilization. Electrical muscle stimulation of the quadriceps, is practiced in some intensive care units, and it should, in theory, also through an improvement of muscle strength, increase the beneficial effects of early mobilization. We hypothesized that early quadriceps electrical stimulation and early work on a cyclo-ergometer associated with a standard protocol of early passive/active mobilization in the ICU may improve muscle function and reduce the duration of mechanical ventilation, length of stay, the number of readmissions and improve the quality of life in the mid term in critically ill patients, as compared to a conventional protocol of early passive/active mobilization.
The primary aim of this feasibility study is to evaluate the feasibility of delivering a PRT programme in an inpatient older person rehabilitation setting and to describe changes in lower limb strength and physical function following six weeks of resistance training and routine physiotherapy versus a control group of routine physiotherapy only in an older inpatient population.
When practicing weightlifting regularly the body makes new proteins within the muscle. These new proteins can increase the size of the cells within the muscle to make them larger, a process called hypertrophy. The common convention surrounding gains in skeletal muscle size and strength is that heavy weights are needed. In contrast, lifting lighter weights are thought to be required to induce muscular endurance and not to promote growth. However, it has previously been shown in untrained men that lifting lighter weights results in similar gains in muscle mass and strength as lifting heavier weights. The purpose of this study is to examine how performing resistance training of different intensities (light or heavy weights) affects the degree of muscle growth and strength gain in individuals who are already resistance training. This information will be valuable when designing exercise protocols for increasing muscle size and strength at all ages, or in individuals returning from injury, as a way to stimulate muscle growth and promote strength gains without the need to lift heavy weights.
Tobacco smoke is probably the single most significant source of toxic chemicals that humans are exposed to. Smoking is associated with a variety of pathological conditions such as cardiovascular and pulmonary diseases. In addition to the known harmful effects of cigarette smoking, several epidemiological studies identified tobacco use as a risk factor for sarcopenia, the loss of skeletal muscle mass and strength with advancing age. Previous studies examined skeletal muscles of smokers in comparison with muscles of non-smokers and found structural and metabolic damage in muscles of smokers. Quitting of smoking is known to be associated with weight gain. A previous study examined the effects of smoking cessation on body composition of post-menopausal women using dual-energy x-ray absorptiometry (DEXA). It was found that women who successfully quit smoking for a period of 16 months have significantly increased their body weight, fat mass, muscle mass and functional muscle mass in comparison with non-quitters women. For the first time, it was shown that smoking cessation is associated with an increase of functional muscle mass. Yet, the effects of quitting of smoking on muscle mass and muscle functional capabilities of younger subjects remain unclear. Therefore, we aim to investigate the effects of smoking cessation on muscle mass, muscle function and strength in heavy smoker's subjects. Our findings may shed light on the beneficial effects of smoking cessation regarding the status and function of skeletal muscle in heavy smokers and as a possible strategy to prevent or delay the progression of sarcopenia. Research hypothesis: Smoking cessation among adult heavy smokers will lead to increase in skeletal muscle mass and improvement of muscle function and strength compared with continued smokers.
This study is divided for development in two complementary work packages justified by the need to incorporate new strategies to optimize rehabilitation outcomes in stroke patients. The general objectives are: 1) to determine the prevalence of respiratory muscle dysfunction in stroke patients; 2) to identify the existence of a potential amino acid marker of increased risk of muscle dysfunction after suffering a stroke; 3) to evaluate the effectiveness of incorporating the respiratory muscle training as an innovative adjuvant therapy in stroke rehabilitation program that may decrease the incidence of morbidity and mortality in the medium and long term; and 4) to quantify the potential impact of respiratory muscle training on the costs of care for stroke patients.
The specific primary objective of this study is to determine whether rituximab is a safe and beneficial therapeutic for Myasthenia Gravis (MG) that warrants further study in a phase III efficacy trial.
The goal of this randomized controlled study was to examine the effects of a 8 weeks innovative training regime (stochastic resonance whole-body vibration [SR-WBV] and virtual virtual games [VG]) in the skilling up phase on physical performance and strength in elderly in need of care population.
The purpose of this study is to determine whether Hizentra is a safe and effective treatment for people with myasthenia gravis (MG).