Ingestion of wheat protein increases in vivo muscle protein synthesis rates in healthy older men in a randomized trial. Gorissen SH, Horstman AM, Franssen R, Crombag JJ, Langer H, Bierau J, et al. Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men. Tang JE, Moore DR, Kujbida GW, Tarnopolsky MA, Phillips SM. Essential amino acids are primarily responsible for the amino acid stimulation of muscle protein anabolism in healthy elderly adults. Volpi E, Kobayashi H, Sheffield-Moore M, Mittendorfer B, Wolfe RR. Maximizing post-exercise anabolism: the case for relative protein intakes. Exercising before protein intake allows for greater use of dietary protein-derived amino acids for de novo muscle protein synthesis in both young and elderly men. Pennings B, Koopman R, Beelen M, Senden JMG, Saris WHM, van Loon LJC. An abundant supply of amino acids enhances the metabolic effect of exercise on muscle protein. Muscle protein synthesis measured by stable isotope techniques in man: the effects of feeding and fasting. Rennie MJ, Edwards RH, Halliday D, Matthews DE, Wolman SL, Millward DJ. Increase in anterior tibialis muscle protein synthesis in healthy man during mixed amino acid infusion: studies of incorporation of leucine. 1995 268:E514–20.īennet WM, Connacher AA, Scrimgeour CM, Smith K, Rennie MJ. Increased rates of muscle protein turnover and amino acid transport after resistance exercise in humans. 1993 265:E210–4.īiolo G, Maggi SP, Williams BD, Tipton KD, Wolfe RR. Acute effects of resistance exercise on muscle protein synthesis rate in young and elderly men and women. Protein requirements and supplementation in strength sports. ConclusionĪ high-protein (~ 1.6 g kg −1 day −1), exclusively plant-based diet (plant-based whole foods + soy protein isolate supplementation) is not different than a protein-matched mixed diet (mixed whole foods + whey protein supplementation) in supporting muscle strength and mass accrual, suggesting that protein source does not affect resistance training-induced adaptations in untrained young men consuming adequate amounts of protein. Resultsīoth groups showed significant (all p 0.05). Leg lean mass, whole muscle, and muscle fiber cross-sectional area (CSA), as well as leg-press 1RM were assessed before (PRE) and after the intervention (POST). Dietary intake was monitored every four weeks during the intervention. Habitual protein intake was assessed at baseline and adjusted to 1.6 g kg −1 day −1 via supplemental protein (soy for VEG or whey for OMN). Nineteen young men who were habitual vegans (VEG 26 ± 5 years 72.7 ± 7.1 kg, 22.9 ± 2.3 kg/m 2) and nineteen young men who were omnivores (OMN 26 ± 4 years 73.3 ± 7.8 kg, 23.6 ± 2.3 kg/m 2) undertook a 12-week, twice weekly, supervised resistance training program. To investigate the effects of dietary protein source on changes in muscle mass and strength in healthy young men undertaking resistance training. However, the effects of an exclusively plant-based protein diet on resistance training-induced adaptations are under investigation. Acute protein turnover studies suggest lower anabolic response after ingestion of plant vs.
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