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whey, casein, protein, body composition, performance

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https://www.readbyqxmd.com/read/25923482/effect-of-cysteine-rich-whey-protein-immunocal%C3%A2-supplementation-in-combination-with-resistance-training-on-muscle-strength-and-lean-body-mass-in-non-frail-elderly-subjects-a-randomized-double-blind-controlled-study
#1
RANDOMIZED CONTROLLED TRIAL
A D Karelis, V Messier, C Suppère, P Briand, R Rabasa-Lhoret
OBJECTIVES: The purpose of the present study was to examine the effect of a cysteine-rich whey protein (Immunocal®) supplementation in combination with resistance training on muscle strength and lean body mass (LBM) in elderly individuals. We hypothesized that the cysteine-rich whey protein (Immunocal®) group would experience a greater increase in muscle strength and lean body mass versus the control group (casein). DESIGN: Randomized double-blind controlled intervention study...
May 2015: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/25757896/supplemental-protein-in-support-of-muscle-mass-and-health-advantage-whey
#2
REVIEW
Michaela C Devries, Stuart M Phillips
Skeletal muscle is an integral body tissue playing key roles in strength, performance, physical function, and metabolic regulation. It is essential for athletes to ensure that they have optimal amounts of muscle mass to ensure peak performance in their given sport. However, the role of maintaining muscle mass during weight loss and as we age is an emerging concept, having implications in chronic disease prevention, functional capacity, and quality of life. Higher-protein diets have been shown to: (1) promote gains in muscle mass, especially when paired with resistance training; (2) spare muscle mass loss during caloric restriction; and (3) attenuate the natural loss of muscle mass that accompanies aging...
March 2015: Journal of Food Science
https://www.readbyqxmd.com/read/24163319/the-role-of-dietary-protein-intake-in-the-prevention-of-sarcopenia-of-aging
#3
REVIEW
Jeannette M Beasley, James M Shikany, Cynthia A Thomson
Sarcopenia is defined as an age-related decrease in muscle mass and performance. Several consensus definitions of sarcopenia exist, each providing different cut points and methodologies for assessing muscle mass and muscle strength. Thus, wide variation in the prevalence of sarcopenia has been reported, generally ranging up to 45% for men and 26% for women. Risk factors for sarcopenia include age, malnutrition, and physical inactivity. Additional evidence suggests a protective role for protein supplementation in older adults to preserve lean body mass and prevent frailty, accepted intervention targets for reducing the risk of sarcopenia...
December 2013: Nutrition in Clinical Practice
https://www.readbyqxmd.com/read/24149728/the-effects-of-pre-and-post-exercise-whey-vs-casein-protein-consumption-on-body-composition-and-performance-measures-in-collegiate-female-athletes
#4
Colin D Wilborn, Lem W Taylor, Jordan Outlaw, Laura Williams, Bill Campbell, Cliffa A Foster, Abbie Smith-Ryan, Stacie Urbina, Sara Hayward
Two of the most popular forms of protein on the market are whey and casein. Both proteins are derived from milk but each protein differs in absorption rate and bioavailability, thus it is possible that each type of protein may contribute differently to the adaptations elicited through resistance training. Therefore, the purpose of this study was to investigate the potential effects of ingestion of two types of protein in conjunction with a controlled resistance training program in collegiate female basketball players...
2013: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/23486231/physiological-and-physical-effects-of-different-milk-protein-supplements-in-elite-soccer-players
#5
Pablo Christiano Barboza Lollo, Jaime Amaya-Farfan, Luciano Bruno de Carvalho-Silva
Brazilian soccer championships involve a large number of teams and are known to cause stress and loss of muscle mass besides other negative physical consequences. This study was designed to compare the effects produced by three types of protein supplements on body composition, biochemical parameters and performance of a top Brazilian professional soccer team during an actual tournament. Twenty-four athletes assessed as having a normal nutrient intake were divided into three groups according to supplementation...
December 2011: Journal of Human Kinetics
https://www.readbyqxmd.com/read/23153110/the-effects-of-six-weeks-of-supplementation-with-multi-ingredient-performance-supplements-and-resistance-training-on-anabolic-hormones-body-composition-strength-and-power-in-resistance-trained-men
#6
Michael J Ormsbee, W Kyle Mandler, D David Thomas, Emery G Ward, Amber W Kinsey, Emily Simonavice, Lynn B Panton, Jeong-Su Kim
UNLABELLED: HASH(0x43c4320) BACKGROUND: Resistance training (RT) enhances muscle protein synthesis and hypertrophy while increasing strength and power. Some multi-ingredient performance supplements (MIPS) have been shown to augment the physiological improvements associated with RT. The purpose of this study was to investigate the impact of specific pre- and post-workout MIPS on anabolic hormones, body composition, muscle strength, and power in resistance-trained men participating in a periodized RT program...
2012: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/22444923/once-a-day-milking-of-holstein-and-montb%C3%A3-liarde-cows-for-7-weeks-in-mid-lactation
#7
D Pomiès, B Martin, Y Chilliard, P Pradel, B Rémond
This study aimed at comparing the effects of once-a-day (OAD) milking during the descending phase of lactation between cows from the two most common breeds in France (Holstein and Montbéliarde). This study was carried on during two successive summers on a total of 50 Holstein and 38 Montbéliarde cows. During 7 weeks, half of the cows from each breed was milked OAD while the other half was milked twice a day (TAD). The animals were also followed for the next 3 or 5 weeks when they were all milked TAD, to check for any residual effect of OAD milking...
November 2007: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/19169168/effects-of-soy-protein-isolate-on-bone-mineral-density-and-physical-performance-indices-in-postmenopausal-women-a-2-year-randomized-double-blind-placebo-controlled-trial
#8
RANDOMIZED CONTROLLED TRIAL
Phani M Vupadhyayula, J C Gallagher, Thomas Templin, Susannah M Logsdon, Lynette M Smith
OBJECTIVE: Postmenopausal decreases in body composition, physical performance, and bone mass have been shown to be reversed by estrogen, but given the concerns regarding its use, women are looking for alternatives such as soy isoflavones. Most studies on the effects of soy on bone mineral density (BMD) in postmenopausal women have been short-term, that is, 3 to 6 months, and failed to provide conclusive evidence. There is no evidence of its effects on physical performance. The aim of the present study was to investigate the effects of soy plus isoflavones on BMD and physical performance in postmenopausal women...
March 2009: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/17679046/impact-of-differing-protein-sources-and-a-creatine-containing-nutritional-formula-after-12-weeks-of-resistance-training
#9
RANDOMIZED CONTROLLED TRIAL
Chad M Kerksick, Chris Rasmussen, Stacy Lancaster, Michael Starks, Patty Smith, Charlie Melton, Mike Greenwood, Anthony Almada, Richard Kreider
OBJECTIVE: We evaluated whether colostrum (Col) or an isocaloric and isonitrogenous blend of whey and casein in addition to creatine (Cr) affects body composition, muscular strength and endurance, and anaerobic performance during resistance training. METHODS: Forty-nine resistance-trained subjects participated in a standardized 12-wk total body resistance training program. In a double-blind and randomized manner, subjects supplemented their diet with a protein control (Pro), Pro/Col, Pro/Cr, or Col/Cr...
September 2007: Nutrition
https://www.readbyqxmd.com/read/16988909/effects-of-resistance-training-and-protein-plus-amino-acid-supplementation-on-muscle-anabolism-mass-and-strength
#10
RANDOMIZED CONTROLLED TRIAL
D S Willoughby, J R Stout, C D Wilborn
This study examined 10 wks of resistance training and the ingestion of supplemental protein and amino acids on muscle performance and markers of muscle anabolism. Nineteen untrained males were randomly assigned to supplement groups containing either 20 g protein (14 g whey and casein protein, 6 g free amino acids) or 20 g dextrose placebo ingested 1 h before and after exercise for a total of 40 g/d. Participants exercised 4 times/wk using 3 sets of 6-8 repetitions at 85-90% of the one repetition maximum. Data were analyzed with two-way ANOVA (p < 0...
2007: Amino Acids
https://www.readbyqxmd.com/read/16937979/the-effects-of-protein-and-amino-acid-supplementation-on-performance-and-training-adaptations-during-ten-weeks-of-resistance-training
#11
RANDOMIZED CONTROLLED TRIAL
Chad M Kerksick, Christopher J Rasmussen, Stacy L Lancaster, Bharat Magu, Penney Smith, Charles Melton, Michael Greenwood, Anthony L Almada, Conrad P Earnest, Richard B Kreider
The purpose of this study was to examine the effects of whey protein supplementation on body composition, muscular strength, muscular endurance, and anaerobic capacity during 10 weeks of resistance training. Thirty-six resistance-trained males (31.0 +/- 8.0 years, 179.1 +/- 8.0 cm, 84.0 +/- 12.9 kg, 17.8 +/- 6.6%) followed a 4 days-per-week split body part resistance training program for 10 weeks. Three groups of supplements were randomly assigned, prior to the beginning of the exercise program, in a double-blind manner to all subjects: 48 g per day (g...
August 2006: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/10838463/effect-of-a-hypocaloric-diet-increased-protein-intake-and-resistance-training-on-lean-mass-gains-and-fat-mass-loss-in-overweight-police-officers
#12
RANDOMIZED CONTROLLED TRIAL
R H Demling, L DeSanti
We compare the effects of a moderate hypocaloric, high-protein diet and resistance training, using two different protein supplements, versus hypocaloric diet alone on body compositional changes in overweight police officers. A randomized, prospective 12-week study was performed comparing the changes in body composition produced by three different treatment modalities in three study groups. One group (n = 10) was placed on a nonlipogenic, hypocaloric diet alone (80% of predicted needs). A second group (n = 14) was placed on the hypocaloric diet plus resistance exercise plus a high-protein intake (1...
2000: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/7808829/similar-gastric-emptying-rates-for-casein-and-whey-predominant-formulas-in-preterm-infants
#13
RANDOMIZED CONTROLLED TRIAL
T Thorkelsson, F Mimouni, R Namgung, M Fernández-Ulloa, S Krug-Wispé, R C Tsang
Casein-predominant infant milk formulas have been speculated to predispose to lactobezoar formation in preterm infants due to delayed gastric emptying. There have been, however, no prospective studies to prove this possibility. In a randomized, double-blinded, prospective study, we tested the hypothesis that preterm infants fed casein-predominant milk formula have slower gastric emptying than infants fed whey-predominant formulas. Twenty preterm infants within the first 4 d of life were randomized to receive either the whey-predominant formula Similac Special Care (whey:casein ratio 60:40) or an experimental casein-predominant formula (whey:casein ratio 18:82)...
September 1994: Pediatric Research
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