Active clinical trials for "Sarcopenia"

The first goal of this study is the follow young and older people over a period of 8 weeks to define the processes responsible for loss of muscle length and width in age-related muscle wasting (sarcopenia) and allow us to look at age-related differences in tendon. Secondly, we will assess two different exercise interventions for reversing human sarcopenia; one which involves shortening of the muscle and the other which involves lengthening, whilst also studying why these exercises work the way they do. This project will have significant implications for our understanding of the control of skeletal muscle and tendon size in humans, particularly in relation to sarcopenia and the surrounding health issues.

The cardiorespiratory training can increase muscle strength ventilatory.

The loss of muscle mass with aging is associated with a dysregulation of muscle protein synthesis (MPS) that is generally characterized by a suppressed MPS response to protein ingestion. This 'anabolic resistance' to protein feeding can be overcome with the ingestion of larger protein servings (~0.4g/kg/meal, equivalent to ~ 30 - 40g/meal); however, older adults would likely find it challenging to consume such quantities of protein on a per meal basis. The amino acid leucine has a unique role as a key 'activator' of MPS. Some research shows that increasing the leucine content of a suboptimal dose of a protein supplement can enhance the MPS response in older adults. However it is currently unknown whether the co-ingestion of leucine with normal, mixed meals can increase MPS. Furthermore, it has been suggested that leucine supplementation may only benefit older adults consuming suboptimal daily protein intakes. Therefore, the purpose of the current study is to examine the impact of leucine co-ingestion with mixed macronutrient meals on the myofibrillar protein synthetic response in older men consuming daily protein intakes at or below the current recommendations. A further objective is to determine whether the myofibrillar protein synthetic response to a session of resistance exercise is enhanced by leucine supplementation with meals. The investigators hypothesize that, in both the exercised and non-exercised condition, leucine co-ingestion at meals will enhance integrative myofibrillar protein synthesis in older adults consuming lower daily protein intakes, but will not augment MPS in those consuming higher daily protein. The investigators further hypothesize that the influence of leucine supplementation on MPS will be greater in the exercise condition than the non-exercise condition.

This clinical trial is a multicentric prospective study to assess the clinical and prognostic value of sarcopenia in patients older than 70 years with diffuse large B-cell lymphoma.

The loss of muscle mass is one of the major diagnostic criteria for sarcopenia. Many methods are also used for the definition of sarcopenia. However there is no information about cut-off values in this respect in the literature. Therefore, the aim of this study is to determine the cut-off values of this ratio for confirming the diagnosis of sarcopenia.

The purpose of this study is to determine whether a prolonged (9 month) high (6g/d) of marine oil improves insulin sensitivity and glucose control in subjects with impaired glucose regulation.

Research Question: Does the gut microbiome contribute to muscle anabolic resistance to protein supplementation in older adults? Background: Loss of muscle occurs with age and skeletal muscle in older adults can display anabolic resistance to protein in diet. It has been hypothesised that the gut microbiome may play a role in this relationship and therefore could be targeted. Aim: This trial aims to test whether modulation of the gut microbiome, in addition to protein supplementation, can improve skeletal muscle function versus protein supplementation alone. Methods: Double blinded, randomised, placebo controlled, dietary intervention study. Twin pairs will be randomised to either receive protein supplementation plus placebo or protein supplementation plus a gut microbiome modulator (prebiotic plus probiotic) for 12 weeks. Primary outcome will be muscle function measured using chair-rise time. Conclusion: Anabolic resistance warrants further characterisation to guide future therapeutic interventions, especially considering its role in the development of disability, sarcopenia and frailty.

Adults aged over 18 years, with the diagnosis of Prader-willi syndrome will be recruited through the hospital's outpatient clinic for either as intervention group receiving therapeutic elastic band training, or as control group receiving usual care for a total of 16 weeks. Body composition, physical capacity, and serum changes will be assessed before and after the intervention.

Background to the research: Sarcopenia is a geriatric syndrome defined by progressive generalised loss of skeletal muscle, mass, force and function. Problem statement and objectives: To validate a simple, reproducible, screening tool, which is easy to use in the general practitioner's surgery is one of the challenges of the future. The primary objective is to assess the sensitivity and specificity of the study screening test, the SARC-F, at a predetermined threshold of >= 4. A total score of >=4 is associated with poor physical performance and is also predictive of the clinical diagnosis of the disease. The secondary objectives are to assess the prevalence of sarcopenia in the study population, to carry out a subgroup analysis of statistical performance for the five questions tested by the SARC-F, to identify the main risk factors associated with the disease and to propose an algorithm, positioning the SARC-F at the heart of a systematic screening process for the disease. Materials and methods: This is a diagnostic, cross-sectional study with a descriptive and analytical epidemiological component to analyse the secondary endpoints. It will be carried out in usual care over a period of 6 months in a homogeneous population of 65-year-old and older patients from the community consulting in primary care. The subjects will undergo the screening test (SARC-F questionnaire) and then the reference clinical assessment (gold standard) in succession. Expected results: To demonstrate the statistical tests that the SARC-F questionnaire is a simple tool, appropriate for early screening of sarcopenia in primary care.

This project aims to assess the impact of technological processes of meat, as cooking conditions, on amino acid bioavailability and protein metabolism. The hypothesis is that, even if meat is considered as a good provider of fast proteins and so could be useful to prevent sarcopenia in aged people, the manner it is cooked can change its digestion rate and amino acids bioavailability for muscle synthesis.