scholarly journals Corrigendum for Oikawa et al, “Whey protein but not collagen peptides stimulate acute and longer-term muscle protein synthesis with and without resistance exercise in healthy older women: a randomized controlled trial” Am J Clin Nutr 2020;111(3):708–18. https://doi.org/10.1093/ajcn/nqz332

2020 ◽  
Vol 112 (6) ◽  
pp. 1656-1656
Keyword(s):  
Randomized Controlled Trial ◽  
Protein Synthesis ◽  
Resistance Exercise ◽  
Older Women ◽  
Whey Protein ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Controlled Trial ◽  
Randomized Controlled ◽  
Collagen Peptides

scholarly journals Whey protein but not collagen peptides stimulate acute and longer-term muscle protein synthesis with and without resistance exercise in healthy older women: a randomized controlled trial

2020 ◽  
Vol 111 (3) ◽  
pp. 708-718 ◽  
Author(s):  
Sara Y Oikawa ◽  
Michael J Kamal ◽  
Erin K Webb ◽  
Chris McGlory ◽  
Steven K Baker ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Protein Synthesis ◽  
Resistance Exercise ◽  
Older Women ◽  
Whey Protein ◽  
Protein Quality ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Controlled Trial ◽  
Rest And Exercise

ABSTRACT Background Aging appears to attenuate the response of skeletal muscle protein synthesis (MPS) to anabolic stimuli such as protein ingestion (and the ensuing hyperaminoacidemia) and resistance exercise (RE). Objectives The purpose of this study was to determine the effects of protein quality on feeding- and feeding plus RE–induced increases of acute and longer-term MPS after ingestion of whey protein (WP) and collagen protein (CP). Methods In a double-blind parallel-group design, 22 healthy older women (mean ± SD age: 69 ± 3 y, n = 11/group) were randomly assigned to consume a 30-g supplement of either WP or CP twice daily for 6 d. Participants performed unilateral RE twice during the 6-d period to determine the acute (via [13C6]-phenylalanine infusion) and longer-term (ingestion of deuterated water) MPS responses, the primary outcome measures. Results Acutely, WP increased MPS by a mean ± SD 0.017 ± 0.008%/h in the feeding-only leg (Rest) and 0.032 ± 0.012%/h in the feeding plus exercise leg (Exercise) (both P < 0.01), whereas CP increased MPS only in Exercise (0.012 ± 0.013%/h) (P < 0.01) and MPS was greater in WP than CP in both the Rest and Exercise legs (P = 0.02). Longer-term MPS increased by 0.063 ± 0.059%/d in Rest and 0.173 ± 0.104%/d in Exercise (P < 0.0001) with WP; however, MPS was not significantly elevated above baseline in Rest (0.011 ± 0.042%/d) or Exercise (0.020 ± 0.034%/d) with CP. Longer-term MPS was greater in WP than in CP in both Rest and Exercise (P < 0.001). Conclusions Supplementation with WP elicited greater increases in both acute and longer-term MPS than CP supplementation, which is suggestive that WP is a more effective supplement to support skeletal muscle retention in older women than CP. This trial was registered at clinicaltrials.gov as NCT03281434.

Effects of high‐protein diets on fat‐free mass and muscle protein synthesis following weight loss: a randomized controlled trial

2013 ◽  
Vol 27 (9) ◽  
pp. 3837-3847 ◽  
Author(s):  
Stefan M. Pasiakos ◽  
Jay J. Cao ◽  
Lee M. Margolis ◽  
Edward R. Sauter ◽  
Leah D. Whigham ◽  
...  
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Protein Synthesis ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Controlled Trial ◽  
Fat Free Mass ◽  
Randomized Controlled ◽  
High Protein Diets ◽  
Protein Diets

scholarly journals Protein Ingestion before Sleep Increases Overnight Muscle Protein Synthesis Rates in Healthy Older Men: A Randomized Controlled Trial

2017 ◽  
Vol 147 (12) ◽  
pp. 2252-2261 ◽  
Author(s):  
Imre WK Kouw ◽  
Andrew M Holwerda ◽  
Jorn Trommelen ◽  
Irene Fleur Kramer ◽  
Jacqueline Bastiaanse ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Protein Synthesis ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Controlled Trial ◽  
Older Men ◽  
Randomized Controlled ◽  
Protein Ingestion

scholarly journals The response of muscle protein synthesis following whole-body resistance exercise is greater following 40 g than 20 g of ingested whey protein

2016 ◽  
Vol 4 (15) ◽  
pp. e12893 ◽  
Author(s):  
Lindsay S. Macnaughton ◽  
Sophie L. Wardle ◽  
Oliver C. Witard ◽  
Chris McGlory ◽  
D. Lee Hamilton ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Resistance Exercise ◽  
Whey Protein ◽  
Muscle Protein ◽  
Muscle Protein Synthesis ◽  
Whole Body ◽  
Body Resistance
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