The Effect of the DASH Diet Containing Meat on Muscle and Metabolic Health in Older Adults
ObesitySarcopenia1 moreAge-related changes in body composition, muscular fitness, and metabolic health resulting in the onset of obesity, sarcopenia, and chronic diseases are profound public health issues that are in need of immediate attention. Effective and feasible methods, such as dietary therapies, are needed to improve health in older adults that in turn lead to independence, enhanced quality of life and reduced hospitalizations. Diet quality and dietary protein intake are vital for maintaining body composition, muscle mass and improved physical performance. Malnutrition in dietary protein intake is a major cause of reduced muscle mass, strength, and function in older adults. The Dietary Approaches to Stop Hypertension (DASH) dietary pattern is a high-quality therapeutic diet known to improve health status in various diverse and at-risk populations resulting in improved heart health, maintained cognitive function and reductions in metabolic diseases such as diabetes, metabolic syndrome, and nonalcoholic fatty liver disease. The primary protein recommendations of the DASH diet are poultry and fish and it is recommended to decrease or exclude red meats from the diet. However, studies have demonstrated that lean red meat incorporated into a DASH-like diet doesn't exacerbate cardiovascular health indices in adults, indicating that lean red meat can be included in the DASH diet without negative effects on heart health. Although studies have reported on the DASH diet in older adults, no studies have investigated the effect of the DASH diet containing lean red meat on measures of body composition, muscle mass or metabolic health under controlled-feeding conditions. The purpose of this study was to determine the effect of the DASH diet containing daily intakes of lean red meat on indicators of body composition, muscular fitness and biomarkers of metabolic health in adults 65 and older using controlled-feeding and systems biology approaches.
The Effect of Tai Chi Exercise Among Elders With Sarcopenia
Sarcopenia in ElderlyTai ChiSarcopenia has been defined as a disease which presented as low muscles strength, low muscle quantity or quality and low physical activity. The prevalence of sarcopenia is increasing with the age and it is also included in one of geriatric syndromes. Several criteria have been mentioned for diagnosis of sarcopenia, such as European Working Group on Sarcopenia in Older People (EWGSOP)、Foundation for the National Institutes of Health Biomarkers Consortium Sarcopenia Project (FNIH) and Asian Working Group for Sarcopenia (AWGS). In European, the prevalence rate of sarcopenia is 9.25-18%; 5-7% Canadian and 14.4% Taiwanese elders have been diagnosed as sarcopenia, respectively. The sarcopenia has been found its relationship with adverse outcomes of fall down, fracture, disability, and death. The cytokines and decline in anabolic hormones play a role in the pathogenesis of sarcopenia. Tai Chi exercise is one of Qigong and well-popular in Chinese population, and is helpful to integration of body movements. Tai Chi exercise is less complicated and emphasized people's awareness of self-care which presented the relationship between human and nature. Tai Chi exercise could improve muscle performance, balance and have the benefit for fall down prevention in the elders and patients with frailty. Furthermore, Tai Chi has been found that it also could improve the muscle power and power strength in sarcopenic elders by team training. Furthermore, immune makers of inflammation process have been noted their diminishments by Qigong intervention. The aim of this study is to investigate the effect of Tai Chi exercise in sarcopenic elders through practicing at home. The differences of muscles strength, muscle quantity or quality and physical activity after interventions would be recorded and analyzed. The cytokines related to the sarcopenia process would also be sampled.
Creatine-Guanidinoacetic Acid Supplementation for Sarcopenia (CREGAAS)
SarcopeniaSarcopenia-driven brain and muscle creatine deficit could be seen as a distinctive pathological facet of this condition, and this might be approached with targeted therapies in aim to restore creatine homeostasis in target tissues. Among potential therapeutic candidates, guanidinoacetate (GAA) appears recently as a direct precursor of creatine that may favorably upregulate muscle and brain creatine concentration. Interestingly, GAA-creatine mixture was found to be superior than creatine itself to effectively improves bioenergetics in the human brain and muscle in healthy humans, perhaps due to the unique transportability features of this combination. Here, we plan to evaluate does creatine-GAA supplementation affects various biomarkers of sarcopenia in elderly.
Insulin and Sarcopenia in the Elderly
SarcopeniaMuscle loss with aging is a significant contributor to disability in older people. Our general hypothesis is that loss of muscle with aging, known as sarcopenia, may be due to inability of muscle to grow in response to insulin. Our goal is to determine the mechanisms underlying this age-related insulin resistance of muscle proteins, which will allow us to define in the future specific interventions to target this defect and provide the scientific basis for the prevention and treatment of sarcopenia.
Determination of In-vivo Plasma AA Appearance From Plant Protein Fibre Products
AgingUndernutrition2 moreThis study aims to assess the digestibility and efficacy of the study groups previously developed innovative plant-based protein and fibre products.
Beetroot Juice Resistance Training Older Adults
SarcopeniaOld Age; AtrophyThe present study compared the effects of a nitrate containing beetroot juice supplement (BRJ+Nitrate) vs. a placebo (Control) on total and regional fat free mass, quadriceps muscle strength, lower body mobility, and VO2peak in healthy, older adults undergoing a 10-week long progressive resistance training program with protein supplementation.
Sarcopenia Physical Activity and Metabolomic
SarcopeniaMuscle failure (sarcopenia or dynapenia) is a factor of frailty and therefore, ultimately, of loss of autonomy in the elderly. Currently, no biomarker of muscle failure has a high sensitivity, specificity and positive predictive value. Several results, although preliminary, suggest that metabolomics could facilitate the early identification of frail patients, allowing the implementation of primary prevention strategies. Untargeted high-resolution metabolomics analysis would identify discriminative biomarkers and biological mechanisms associated with frailty. Finally, the hypothesis that metabolic signatures can be identified as risk factors for the development of age-related dynapenia should be tested in a longitudinal design.
Vitamin D and Resistance Exercise Training; Effects on Musculoskeletal Health in Frail Older Men...
SarcopeniaMuscle Atrophy1 moreThis study aims to determine whether vitamin D3 supplementation is any more effective in improving musculoskeletal function when combined with exercise training compared with exercise training alone.
Effects of a Resistance Training Program in Older Women With Sarcopenia
SarcopeniaThis is a randomized clinical trial with a control group that will test how periodized resistance training will impact measures of sarcopenia in older women who have been identified as presarcopenic or sarcopenic. The intervention will be approximately 12 weeks in duration with 24 total free-living older women. Outcome measures will be collected at baseline, 6 weeks and post-intervention.
Characterizing the Incretin Effect of Amino Acids and Defining GLP-1 Role on Skeletal Muscle
SarcopeniaThis study has two protocols the aims of which are: To identify age-related effects of AA on incretin secretion and whether and to what extent AA exhibit a true incretin effect (gut- mediated increases in plasma insulin) in younger individuals. (Protocol 1) To define the extra-pancreatic ''novel'', insulin independent effects of glucagon like peptide-1 (GLP-1) on postprandial muscle protein and glucose metabolism and microvascular blood flow. (Protocol 2)