Active clinical trials for "Sarcopenia"

Sarcopenia is a pathophysiological process associated with aging and some metabolic conditions characterized by progressive muscle tissue loss, which may lead to loss of strangth and performance and increase risk of falls and fractures, physical disability and premature death. Therefore, it is necessary to identify personalized programs of physical activity and supplementation for elderly population in order to improve their physical functions, muscle strengh and body composition. With the present project we aime to assess the effect of a feasible home-based exercise program coupled with food supplementation to improve muscle strength, muscle volume and muscle physical performance potentially associated with sarcopenia in elderly people.

This study is to evaluate the effect of CaHMB in the treatment of sarcopenia in liver cirrhosis.

Objective: To study the acute and chronic effects of whole-body vibration (WBV) exercises on the lower extremity blood flow, mobility function, balance, muscle strength, bone density, and general health status, and its feasibility as an intervention in frail elderly patients. Design: Randomized controlled trial. Subjects: The frail older persons meeting the Fried Frailty Criteria. Interventions: All eligible subjects were randomly assigned to 4 groups: (1) WBV group: Subjects received a whole-body vibration exercise alone; (2) Progressive resistance training (PRT) group: Subjects received progressive resistance training; (3) WBV+ PRT group: Subjects received the whole-body vibration and progressive resistance training; (4) Control group: Subjects received no intervention/training. The periods of intervention are 12 weeks. Main measures: The lower extremities blood flow (the diameters and red blood cell velocity of the common femoral artery), timed up and go test, 30-second chair stand test, five times sit to stand test, lower extremities muscle strength, balance function, balance confidence, bone density, and general health status was assessed at the beginning of the study, at instant, 12 weeks and 24 month after the intervention. Study hypothesis: Whole-body vibration exercise is a safe and effective method that can improve the lower extremity blood flow, mobility function, balance, muscle strength, bone density, and general health status in the frail elderly.

The purpose of this placebo controlled clinical trial is to examine the effects of of neuromuscular electrical stimulation (NMES) training on physical activity, muscle function, self-efficacy, and blood markers [e.g., brain-derived neurotrophic factor (BDNF)] in older adults. It is hypothesized that 4-weeks of NMES will increase 1) physical activity, 2) muscle function, 3) self-efficacy, and 4) BDNF in older adults. Sarcopenia is a destructive progressive cycle of impaired physical function resulting in loss of muscle mass, strength, and self-confidence in ability to perform physical activities, compounded by difficulty walking and ultimately reduced physical activity levels for many older adults. Neuromuscular electrical stimulation (NMES) is a common therapeutic modality used to create involuntary muscle contractions as a means to increase muscle strength, and may be an effective treatment for improving muscle function and physical activity levels in older adults with sarcopenia. Thus, it is critical to explore viable and effective alternative therapies to increase physical activity. The goal of the investigators' is to determine the effectiveness of neuromuscular electrical stimulation (NMES) at increasing physical activity and related biological, psychological, and muscle function factors. This placebo controlled clinical trial will use a pre-test - post-test randomized experimental design.

This prospective, single-site, single arm pilot study aims to assess the efficacy of Pulsed Electromagnetic Field (PEMF) exposure in the reduction of the decline in muscle strength, function and bone mineral density (BMD) in osteosarcopenia.

Sarcopenia can occur or increase due to sedentary lifestyles, physical inactivity or chronic endocrine and inflammatory disorders, this pathology is much more frequent in older people due to the added risk factors and the fact that the physiological ageing process generates a pro-inflammatory situation and an alteration in the synthesis of hormones and myokines, it has been observed that the loss of strength causes functional deterioration and a significant increase in the person's dependence, reduces their functional status and quality of life, and may increase the risk of falls, thereby increasing mortality. Blood flow restriction (BRR) and focal vibration (FV), which aim to achieve muscular hypertrophy without the need to use high loads or intensities, VF or BFR brings improvements to elderly people with sarcopnoea. The hipotesis of this study is the addition of BFR or VF techniques to training results in greater improvements in circulating myokine concentrations and functional tests than not adding it. This study has the objective to determinate whether biochemical markers in serology are able to correlate with improvements in strength, also to study whether the plasma levels of apelin, myomyostatin and lL6 are modified with entraining, to determine whether plasma levels of apelin, myomyostatin and lL6 are further increased by training associated with VF and/or BFR and evaluate the effectiveness of different interventions in improving functional tests. The methodology of the study is a single-blind, randomised, clinical trial will be conducted. The study population is people over 65 years of age, sedentary, with functional independence and with a state of health that allows them to carry out physical activity. The study is planned as a pilot study and will consist of 30 subjects distributed in: 10 people in the control group (CG), 10 in the experimental vibration group (GE-V) and 10 in the experimental group with restriction (GE-R). The variables to be measured are anthropometric variables, biochemical markers, variables of neuromuscular function, information about fragility and independence, an functionality. The intervention will be a training in the control group, the FV and BFR groups will be 3 times a week, with a warm-up, a main block with aerobic work, strength work and training and coordination work, and finally a return to calm, in the experimental groups the strength work will be carried out with these instruments.

Thus, the aim of the current study is to assess the influence of vitamin D deficiency and, consequently, of serum calcium deficiency in the body composition, muscular activity, bone mineral density, fatigue, and exercise tolerance of CD patients. Secondly, it also aims to determine the impact of vitamin D supplementation on this population.

A randomized double blind placebo control trial study will be conducted in critically ill patients with vitamin D deficiency. Investigator aimed to study the effect of oral vitamin D3 supplementation, compare to placebo, on skeletal muscle mass and body composition.

Background: - In individuals as they age, changes in muscle tissue can significantly affect their muscle strength and exercise endurance. This process, known as sarcopenia, may lead to decreased mobility and physical weakness, which is what we in general refer to as frailty. The causes of sarcopenia and why it affects some individuals more than others are not known, but many factors influence muscle physiology and function, including metabolic, hormonal, environmental, and lifestyle factors. Researchers interested in identifying factors involved in the start and progression of sarcopenia need of samples of human muscle tissue and cells for laboratory investigations. Objectives: To train researchers in the appropriate procedures for performing muscle biopsies and collecting, labeling, and storing the samples. Develop a data base of specific scientific studies evaluating the physiological and metabolic function of muscle that can be used in future studies. Eligibility: - Healthy volunteers at least 18 years of age. Design: Participants will be screened with a full medical history and physical examination, as well as blood and urine tests, and will schedule a date for the muscle biopsy. Participants will have a muscle biopsy, with tissue and cells taken from the upper part of the thigh. A local anesthetic will be given for the procedure. Participants will also provide a blood sample and have an electrocardiogram to evaluate heart function. Participants will have a followup visit 1 week after the biopsy visit to evaluate the healing process and provide any further treatment for the affected area, after which they may fully resume normal activities.

Age-associated loss of muscle mass, termed sarcopenia, is strongly associated with functional impairment and physical disability in the elderly. Maintenance or growth of muscle mass is mainly driven by increased muscle protein synthesis (i.e. the generation of new muscle protein) in response to exercise and feeding. However, several investigations have shown that elderly individuals have a blunted protein synthetic response following protein intake. This inability of the elderly to properly respond to growth stimuli has been termed anabolic resistance and plays a significant role in the development of sarcopenia. However, the precise mechanisms underpinning anabolic resistance are unknown. It is well established that muscle protein synthesis at the molecular level is regulated by a cellular protein complex called mTORC1. When exposed to a growth stimulus, mTORC1 has been shown to associate with lysosomes, i.e. the intracellular organelles responsible for the breakdown of cellular proteins, and subsequently moving towards the cell periphery. This movement of lysosome-associated mTORC1 within the cell is believed to be vital for the activation of protein synthesis, as inhibition of lysosomal movement blunts mTORC1 activation in response to amino acids. Thus, dysregulation of lysosomal movement in ageing muscle may represent an underlying mechanism in the development of anabolic resistance. However, this area of research is unexplored in the context of human skeletal muscle. The investigators hypothesize that dysregulation of lysosomal movement plays a central role in the development of age-associated skeletal muscle anabolic resistance.