View clinical trials related to Sarcopenia.
Filter by:The purpose of the study is to investigate the effect of vitamin D on muscle tissue and physical performance.
Skeletal muscle loss is a common consequence of aging and in some individuals reaches a level that compromises health and quality of life. Age-associated increases in cytokine and inflammatory signaling may be important contributors to this process. The investigators will assess the practical question of whether testosterone injection and gel application elicit similar responses. Resistance exercise will be used as a means of stimulating both inflammatory and anabolic responses in skeletal muscle. In order to assess the effects of testosterone on these responses, subjects will perform resistance exercise on two occasions separated by 7 days. The first session will be performed prior to the initiation of testosterone and/or medrol therapy and the second session will be performed after receiving therapy for 7 days.
Aging is typically associated with a decrease in skeletal muscle mass and muscle function, which contributes decisively to disability in old age and to the loss of quality of life.Resistance exercise can increase muscle strength, function and mass in older adults. The primary aim of this study is to determine whether the combination of resistance training with a supplementation of a cysteine- rich whey protein isolate (Immunocal) compared to combination of resistance training with casein used as control (casein contains little cysteine) could have the potential to provide a synergic beneficial impact on muscle mass and function which could translate to an improved quality of life in elderly persons.
Sarcopenia, the age-associated loss of skeletal muscle mass and strength, is a frequent precursor to functional impairment, disability, falls, and loss of independence in the elderly. The prevalence of sarcopenia is high, with ≥ 45% of the U.S. population aged 60 years or older sarcopenic. Some possible causative factors include a decline in muscle protein synthesis, inactivity, hormonal changes, pro-inflammatory conditions, and reactive oxygen species within the muscle mitochondria, which may all be exacerbated by inadequate nutritional intake. Since dietary protein is targeted to muscle and muscle mass represents the largest tissue in the body, protein nutrition plays a significant role in muscle metabolism. SPECIFIC AIMS The specific aim of this proposed study is to determine the effect of PS-IPC supplementation on muscle mass, muscle strength, muscle quality, and inflammatory / immune markers in healthy older adults. Subjects scoring 4 - 10 on the Short-Physical Performance Battery and aged 60-85 years will consume PS-IPC supplements or placebo three times daily for 12 weeks. HYPOTHESES 1. Subjects consuming PS-IPC will have a greater increase in muscle mass and muscle strength compared to a control group consuming a placebo supplement. 2. Subjects consuming PS-IPC will demonstrate a greater increase in the fractional rate of muscle protein synthesis compared with a placebo control group. 3. Subjects receiving PS-IPC will have a reduction in plasma concentrations of various inflammatory markers of immune function, compared to subjects consuming the placebo.
Objective: Evaluate the muscular strength in the ageing process and identify the changes between the abdominal muscles, upper and louver edges. Method: 48 individuals participated in this study, being divided into four groups according to the age: (G1) 11to 18 years old, (G2) 20 to 26 years old, (G3) 45 to 60 years old and (G4) 66 - 82 years old. The excluding criterion included people who work out more than three times a week, severe arthrosin, stroke, significant cognitive deficit , obesity, use of ortheses for louver members or any break, with or without metallic implant. The evaluation instruments used were: (1) Esfigmomanômetro (EM), (2) Trunk flexor in the supine position,, (3) Jamar Dinamômetro and (4) Preston Pinch Gauge Dinamômetro.
Muscle wasting, which involves the loss of muscle tissue, is common in many conditions, such as cancer, AIDS, trauma, kidney failure, bone fracture, and sepsis. It is also prevalent among the elderly and in people who experience periods of physical inactivity and weightlessness. Muscle wasting can lead to overall weakness, immobility, physical dependence, and a greater risk of death when exposed to infection, surgery, or trauma. There is a need to develop scientifically based treatments that prevent muscle wasting. As one step towards such a goal, this study will examine the physiological and cellular mechanisms that regulate skeletal muscle growth.
The purpose of the study is to - Test the effect of a dietary supplement beta-hydroxy-beta-methylbutyrate (HMB) with and without Vitamin D to prevent and reverse the losses of muscular strength and functionality in older adults. The second aim of the study is to determine if HMB and Vitamin D improves markers of bone turnover in adults aged 60 plus years. HMB is a dietary supplement that comes from the amino acid leucine. HMB is found in foods and is made in your body after you eat protein (meat). Subjects will be randomized to one of four dietary supplement groups and will participate in a 3-day per week exercise program for 12 weeks. Each exercise day will be about 60 minutes long consisting of strength training exercises utilizing Theraband® stretch cords and jumping. Subjects will consume the dietary supplement 2 times per day for 12 weeks. Tests will consist of the following: - Measuring the strength of subjects' legs by using a Isokinetic Dynamometer - Measuring body composition - Measuring hand-grip strength using a hand-grip dynamometer - Measuring functional mobility, balance and agility by the time it takes for you to rise from a chair, walk around a cone 8 feet in front of the chair and return to the chair (Up-&-Go Test - Filling out questionnaires and having blood drawn for biochemical measurements. Testing will be performed at the beginning and at 4, 8 and 12 weeks.
The investigators' general hypothesis is that nutritional factors, including protein/energy malnutrition and/or an impaired response of muscle to nutrition, and inactivity play significant roles in developing sarcopenia, the involuntary loss of muscle mass and function with age. Therefore, age-specific prolonged interventions including nutritional manipulations and/or exercise may help to reduce, stabilize, or even reverse sarcopenia.
In the present study the investigators aim to determine whether leucine supplementation can augment muscle mass and strength and improve body composition in healthy elderly men
This intervention study tests training methods to stabilize or improve functionality in the high risk group of prefrail elderly persons.