View clinical trials related to Sarcopenia.
Filter by:This study evaluated the effect of protein intake immediately after resistance exercise on lean mass, strength, and functional capacity gains in postmenopausal women. Participants were randomly assigned to protein-carbohydrate group (PC) (n=17), that ingested 30 g of whey protein immediately after exercise and 30 g of maltodextrin in the afternoon; and to carbohydrate-protein group (CP) (n=17), that ingested 30 g of maltodextrin immediately after exercise and 30 g of whey protein in the afternoon. Both groups performed the same resistance training protocol in the morning.
Deficits in skeletal muscle function exist during aging and muscular dystrophy, and suboptimal function has been related to factors such as atrophy, excessive inflammation and fibrosis. Sarcopenia is the age-related loss of skeletal muscle mass and function. It is now recognised as a major clinical problem for older people and research in the area is expanding exponentially. This interest stems from the fact that sarcopenia is both common and associated with serious health consequences in terms of frailty, disability, morbidity and mortality. The age-related loss of human skeletal muscle mass is due to a decrease in myofibre size and number with the loss of both fast and slow type myofibres, although the loss of fast myofibres tends to start earlier, at ∼70 years. Many factors influence the decrease in muscle mass. A significant contributor is an anabolic resistance of older skeletal muscle to protein nutrition as seen during immobilisation which can be ameliorated at least in part by resistance exercise and dietary supplementation. Other intensive areas of research are related to the loss of innervation and oxidative damage. Moreover, ineffective muscle regeneration underlies each condition and has been attributed to a deficit in myogenic potential of resident stem cells or satellite cells. It is now widely accepted that satellite cells, and generally adult stem cells, are normally quiescent and tend to reside in hypoxic areas of the tissue to preserve their undifferentiated state. To govern these processes, cells have developed a very complex machinery that is mainly regulated by a group of transcription factors known as hypoxia-inducible factors (HIFs). In particular, several observations support the idea that oxygen deprivation and HIF-1a may play a key role during ischemia to activate the regeneration process, which, after an initial hypoxic insult, needs to proceed under normoxia. On these bases, in this study we will investigate the role of HIF-1a in skeletal atrophy during aging.
The primary objective of this trial is to evaluate the effect of oral administration of an Astaxanthin formulation compared to placebo after one month alone and after an additional 3 months of exercise training on mitochondrial and skeletal muscle function in elderly subjects with evidence of mitochondrial dysfunction/sarcopenia.
Sarcopenia is associated with lower prognosis in solid tumors, but this has not been studied in bladder carcinoma requiring cystectomy. According to EWGSOP recommendations, the diagnosis of sarcopenia is based on walking speed, grip strength and muscle mass. These three elements can easily be measured (specially muscle mass measurement by bioimpedencemetry or tomodensitometry). This cohort study will collect clinical complementary elements to better understand the associated factors present with sarcopenia, in order to prepare an interventional preoperative physical reconditioning study. The mobility measurement will be carried out by the QAPPA questionnaire (validated in French in the elderly) and the quantitative measurement of activity and rest hours during a week by a wrist actimeter. Standardized geriatric data will also be collected: ADL, IADL for autonomy, MMSE for cognitive status, nutritional status (% weight loss, BMI), pain, GDS15 for depression screening, updated Charlson Comorbidity Index to identify polypathology and The STOPP tool for potentially inappropriate medication. Post-operative morbidity mortality at 30 days will be evaluated according to Clavien-Dindo classification. Investigators will also evaluate 6 months geriatric complications : falls, loss of autonomy and decreased mobility and physical activity, cognitive degradation, undernutrition, institutionalization
The primary aim of the study is to assess the mobility dose in neurocritical care patients with ischemic stroke or intracranial hemorrhage and its effects on discharge disposition and patient outcomes. The investigators hypothesize that patients' mobilization dose in the intensive care unit (ICU) predicts discharge disposition, 90 day Barthel Index and other outcomes like muscle wasting (expressed as decrease in rectus femoris cross sectional area (RF-CSA) in the paretic and non-paretic limb measured by bedside ultrasound), and ICU length of stay (LOS).
In 2012, a cross-sectional survey sampling 1,966 community-dwelling old people was conducted. Structurized questionnaires were interviewed face-to-face by well-trained staffs. An overnight fasting blood were obtained for biochemistry parameters.
P31 nuclear magnetic resonance (RMN) Spectroscopy (SRM P31) has currently being poorly used in the field of sarcopenia. The aim of the CAMUS study is to investigate the feasibility a protocol of SRM P31 at rest, during and after a standardized physical task. The secondary objective is to compare the metabolism of tyhe skeletal muscle tissue assessed by SRM P31 in young and older individuals. A pilot study, cross-sectional study will be conducted. Ten healthy sedentary 70+ years males and 10 sedentary 25 to 30 years old male will be included. Level of physical activity, physical performances, will be assessed at baseline. RMN (T1; tractography and SRM P31) will be performed. SRM P31 will be performed at rest, during and after an exhausting muscle task at 70% 1-RM. Feasibility will be judged on the rate of valuable variables recorded (>90%) inorganic phosphate (iP), phosphocreatine (PCr) and isoform of adenosine triphosphate (ATP : alfa, beta, gamma).
The purpose of this study is to investigate mechanisms underlying the reduction in muscle quality (the ratio between muscle strength and muscle size) with aging, and to investigate how these factors are affected by strength training and protein supplementation. It is already established that muscle quality defined as the ratio between the strength and the size of a muscle is improved with strength training, even in frail elderly individuals. However, the relative contribution of factors such as activation level, fat infiltration, muscle architecture and single fiber function is unknown. The main focus of this study is to investigate the relationship between muscle quality and muscle protein breakdown, as insufficient degradation of proteins is hypothesized to negatively affect muscle quality.
Spondylarthropathies (SpA) are among the most common chronic inflammatory rheumatisms in adults, responsible for a muscular loss or sarcopenia which can be very disabling, not much documented in the literature, and not yet studied in France. In addition, sarcopenia is associated with decreased physical activity and increased risk of falls and fractures. A better characterization of the determinants of this muscular loss will allow to better detect and take care of it. The aim is to conduct the first French study on the prevalence and severity of sarcopenia in patients with spondyloarthropathies and to study the variables that may be associated with it. Finally, we propose to evaluate obesity related to sarcopenia in these patients and compare them to cases matched for age and sex (from OFELY / STRAMBO cohorts, Lyon, FRANCE). This is a prospective interventional and monocentric study with minimal risks and constraints: patients will be included for one day for an evaluation of their sarcopenia by measuring their muscle strength, physical performance and body composition and recording of their socio-demographic and disease characteristics.
A common condition associated with ageing is sarcopenia, which is a progressive decrease in muscle mass. Sarcopenia is associated with adverse outcomes including increased mortality, and places a major burden on healthcare spending, with the annual cost of sarcopenia in the United States exceeding that of osteoporosis and hip fracture. In the UK, the prevalence of sarcopenia in community-dwelling older people has been estimated at 5% for men and 8% for women. Current guidelines for sarcopenia diagnosis require muscle mass to be measured using costly devices such as Dual Energy X-ray Absorptiometry (DXA) and Magnetic Resonance Imaging (MRI). Previous research has found strong relationships between the sit-to-stand (STS) test and both muscle mass and muscle strength. This pilot study aims to examine this relationship in community-dwelling older people to develop predictive equations for initial screening of sarcopenia. Forty subjects will be tested using the diagnostic criteria developed by the European Working Group on Sarcopenia in Older People (EWGSOP). Muscle mass will be measured using the DXA and diagnostic ultrasound. Muscle strength will be measured using isokinetic dynamometer, handgrip dynamometry, and hand-held dynamometry. Functional performance will be measured using the Timed-up-and-Go and gait velocity, and the STS. Subjects will perform two variants of the STS; the five times STS (5STS), which requires subjects to perform five consecutive STS movements as quick as possible, and the 30-second STS (30STS), which requires subjects to perform as many STS movements as possible in 30 seconds. All testing will be completed in a single session lasting 90 minutes for each subject. Testing will be performed at the University of Bedfordshire Polhill Campus. Subject recruitment will be recruited using advertisement posters and word of mouth.