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Aging is associated with declines in muscle mass, physical strength and physical function. Adequate quality protein intake in aging adults is critical to preventing functional decline. Peanuts provide a unique blend of amino acids that can provide several health benefits to aging adults. While supplementing with peanut protein (PP) powder as part of a resistance training program may increase myofibrillar protein synthesis (i.e., the gold standard molecular assessment in deciphering a muscle-building response), and improve skeletal muscle quality and body composition, no study to date has made this determination.
This is a two-phase study using both novel and conventional methods to assess how PP supplementation affects muscle tissue in older individuals who engage in resistance training. These two phases will be conducted as part of a 10-week randomized controlled trial in which men and women aged 55 years and older (n=60), will be stratified by gender and randomized to a resistance training intervention (whole body, two days per week) with PP powder (72g daily; n=15 males, n=15 females) provided during the intervention (immediate group, IG) or after the intervention (wait-list control, WLC, n=15 males, n=15 females). The aims of this study are to determine the acute (deuterium oxide tracer) and chronic (peripheral quantitative computed tomography) effects of PP during resistance training on skeletal muscle myofibrillar protein synthesis rates, changes in skeletal muscle size and quality, changes in whole and appendicular body composition (dual energy x-ray absorptiometry), changes in inflammatory markers and the fecal microbiome.
Peanut Protein Powder, Full body resistance training
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Published on BioPortfolio: 2019-07-16T10:38:50-0400
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A type of strength-building exercise program that requires the body muscle to exert a force against some form of resistance, such as weight, stretch bands, water, or immovable objects. Resistance exercise is a combination of static and dynamic contractions involving shortening and lengthening of skeletal muscles.
Component of the NATIONAL INSTITUTES OF HEALTH. Through basic and clinical biomedical research and training, it conducts and supports research into the nature of the aging process and diseases associated with the later stages of life. The Institute was established in 1974.
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