Download or read book The Effects of Creatine Ethyl Ester Supplementation Combined with Resistance Training on Body Composition Muscle Mass and Performance and Intramuscular Creatine Uptake in Males written by Mike Spillane and published by . This book was released on 2008 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Creatine monohydrate has become one of the most popular ingested nutritional supplements due to its potential enhancement of athletic performance. Creatine absorption from the serum into skeletal muscle occurs through the utilization of a membrane-spanning protein, CreaT1. Numerous creatine formulations have been developed primarily to maximize creatine absorption. Creatine ethyl ester (CEE) has been chemically modified by adding an ester group and is thought to increase creatine bio-availability by by-passing the CreaT1. This study examined how a seven week supplementation regimen with CEE affected body composition, muscle mass and performance, whole body creatine retention, as well physiological and molecular adaptations, associated with creatine uptake in nonresistance-trained males following a resistance-training program. Results demonstrated that CEE did not show any additional benefit to increases in muscle strength/performance or a significant increase in total muscle creatine when compared to creatine monohydrate or placebo. CEE supplementation did show a large increase in creatinine levels throughout the study.
Download or read book The Effects of Combined Creatine Monohydrate Supplementation and Resistance Training on Body Composition Muscle Strength and Markers of Satellite Cell Activity in Older Males written by Brian Brabham and published by . This book was released on 2009 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aging is associated with gradual loss of muscle mass, termed sarcopenia, which often leads to progressive disability and loss of independence. Though resistance exercise has shown to be an effective method at reducing the rate of age-related muscle loss and decline in force output; when combined with well known muscle building agents [such as creatine monohydrate (CrM)], these training-induced improvements are enhanced. To explore this idea further, a double-blind, randomized, controlled trial was conducted on 20 males aged between 55-75 yrs at Baylor University, Waco TX. Participants were randomly assigned to consume either CrM [20g/d CrM + 5g Carbohydrate (CHO) x 7 days, then 5g/d CrM +5g CHO x 77 days] or carbohydrate placebo (20g/d CHO x 7 days, then 5g/d CHO x 77 days) while participating in a high intensity resistance training program (3 sets x 10 repetitions at 75% of 1RM), 3 days per week for 12 weeks. Testing sessions were complete prior to, 4 weeks, 8 weeks and 12 weeks post resistance training and supplementation. Each testing session included body composition measurement as determined by Dual Energy X-Ray Absorptiometry (DEXA), muscle strength measurement as determined by 1 repetition maximum (RM) on leg press and bench press, blood collection and vastus lateralis muscle biopsy. The blood serum was analyzed for insulin-like growth factor 1 (IGF-1), free testosterone and hepatocyte growth factor (HGF) and the muscle tissue for phophorylated mesenchymal-epithelial transition factor (c-Met), myogenic regulatory factors (MyoD, myogenin, Myf-5, MRF-4), and total myofibrillar protein. A significant time effect was observed for 1RM bench press (p=0.016), leg press (p
Download or read book Creatine Supplementation Combined with Resistance Training in Older Men written by Murray Justin Chrusch and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Essentials of Creatine in Sports and Health written by Jeffrey R. Stout and published by Springer Science & Business Media. This book was released on 2009-12-30 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: With all of the misinformation regarding the effects of creatine supplementation on health and sports performance, this book brings together the information on how creatine affects body composition, exercise performance, and health. Supported by the International Society of Sports Nutrition, this volume is timely and vital for all professionals in the field of sports nutrition.
Download or read book The Effects of a Creatine Supplement Formulation Containing Cinnamon Extract on Creatine Uptake Creatine Transporter Expression Insulin Signaling and Muscle Performance in Males written by Ryan D. Schoch and published by . This book was released on 2007 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Creatine monohydrate has become one of the most popular ingested nutritional supplements used for its potential to enhance athletic performance. Numerous creatine formulations have been developed to maximize creatine absorption, and may also provide a means to either partially bypass or up-regulate the function of creatine transporter-1 (CreaT1). Cinnamon extract (Cinnulin) has been observed to mimic the effects of insulin, thereby up-regulating glucose uptake and insulin signaling. This study examined how a seven-week supplementation regimen with creatine monohydrate combined with Cinnulin (CCI), creatine monohydrate (CR), or placebo (PLA) affected physiological and molecular adaptations in nonresistance-trained males following a prescribed resistance-training program. Results demonstrated that Cinnulin combined with creatine monohydrate elicited greater mean increases in relative 1-RM leg press, thigh lean mass, body water, and total Akt protein content when compared to creatine monohydrate alone, or placebo; however, intramuscular creatine increases between the CCI and CR groups demonstrated no significant differences.
Download or read book Effects of Creatine and Caffeine Supplementation During Resistance Training in Trained Young Adults written by Avery Ronald David Pakulak and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the study was to determine the separate and combined effects of creatine and caffeine supplementation during resistance training on body composition, muscle thickness and muscle performance (strength, endurance) in trained young adults. Twenty-eight participants were randomized to supplement with Creatine and Caffeine (CR-CAF; n = 9; 22 ± 4 yrs; 0.1 g·kg-1·d-1 of creatine monohydrate powder + 3 mg·kg-1·d-1 of caffeine anhydrous micronized powder); Creatine (CR; n = 7; 22 ± 4 yrs, 0.1 g·kg-1·d-1 of creatine + 3 mg·kg-1·d-1 of caffeine placebo [micronized cellulose powder]), Caffeine (CAF; n = 6; 19 ± 1 yrs, 3 mg·kg-1·d-1 of caffeine + 0.1 g·kg-1·d-1 of creatine monohydrate placebo [maltodextrin]) or placebo (PLA; n = 6; 23 ± 7 yrs, 0.1 g·kg-1·d-1 of creatine monohydrate placebo + 3 mg·kg-1·d-1 of caffeine placebo) one hour before performing resistance training for 6 weeks. Prior to and following training and supplementation, measurements were made for body composition (fat-free and fat mass by air-displacement plethysmography), muscle thickness (elbow and knee flexors and extensors by ultrasound), muscle strength (leg press and chest press by 1-repetition maximum [1-RM]) and muscle endurance (1 set of repetitions to volitional fatigue using 50% baseline 1-RM for leg press and chest press). There was a group x time interaction (p = 0.049) for knee extensor muscle thickness with the CR group experiencing an increase over time with no changes for the other groups. There were no other between group differences for any variable. In conclusion, 6 weeks of creatine and caffeine supplementation during resistance training has no effect in trained young adults.
Download or read book Effects of Resistance Training in Combination with Creatine and Protein Supplementation on Muscle Size Strength and Body Composition of Older Men written by Michael Sean Witten and published by . This book was released on 2003 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Creatine Monohydrate Supplementation on Creatine Transporter Activity and Creatine Metabolism in Resistance Trained Males written by Christopher J. Moulton and published by . This book was released on 2008 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Creatine is a nutritional supplement that is used for its potential performance enhancing (ergogenic) benefits. It constitutes an important component of the immediate energy system, by which ATP is regenerated during intense physical activity. Oral creatine supplementation has been shown to provide numerous benefits, including increases in lean muscle mass, muscular strength, and enhanced performance in various athletic capacities. The creatine transporter is a transmembrane protein that mediates the entry of creatine from the circulation into the muscle cell. Little is understood about the importance of the creatine transporter in controlling the uptake and regulation of creatine within human skeletal muscle. This study attempts to characterize the specific variations in creatine receptor activity and concurrent creatine metabolism in human skeletal muscle in response to a regimen of oral creatine supplementation including a one week loading phase, a four week maintenance phase, and a four week washout phase. Supplementation induced significant increments in total body mass (p = 0.03) and lean body mass (p = 0.01). A moderate effect size (d = 0.51) was found for strength increase, which suggests that the study was underpowered to detect a significant difference in strength increase. There appeared to be no effect of supplementation on intramuscular creatine; however, these data were subject to large measurement error and are not likely accurate. There was no apparent effect on creatine transporter mRNA or creatine transporter content when measured after the loading phase, during and after the maintenance phase, and after the washout phase.
Download or read book Effects of Creatine Monohydrate Tiing on Resistance Training Adaptations in Male and Female Collegiate Athletes written by Nicholas Dinan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: The timing of nutrient ingestion continues to be advocated by athletes, nutritionists, and coaches to augment potential exercise training adaptations. While creatine supplementation is well-established for its ergogenic potential, limited research is available on the potential impact of creatine monohydrate administration before or after workouts among athletes. The aim of this study was to investigate the effects of pre- versus post-exercise creatine monohydrate supplementation on resistance training adaptations, body composition, and work capacity following 8-weeks of supplementation and resistance training. Methods: In a randomized, double-blind, placebo-controlled, parallel design, 34 health resistance-trained male and female athletes were randomly assigned and matched according to fat free mass to consume a placebo, or 5-g dose of creatine monohydrate within 1 hour before training, or within 1 hour after training for 8 weeks while completing a weekly resistance training program. At each time point all participants co-ingested a 25-gram dose whey isolate and a 25-gram dose of carbohydrate powder along with their assigned supplement. A 4-week non-supplementation period of resistance training occurred before the supplementation period to account for any early neuromuscular adaptations associated with starting a new program. Body composition using a 3-compartment field model, muscular strength and muscular endurance using bench press and back squat exercises along with isometric mid-thigh pull were assessed before and after the 8-week supplementation period. A 3 x 2 mixed factorial ANOVA with repeated measures on time were used to determine any statistically significant differences for time and group main effects and group x time interaction effects. Results: Over the training and supplementation period, all groups experienced a significant increase in fat free mass, upper and lower body strength, work capacity, and a decrease in body mass, fat mass, and percent body fat, with no differences observed between groups. Conclusions: Daily supplementation with carbohydrate plus protein with or without creatine monohydrate leads to significant increases in fat-free mass, performance indicators, and work capacity while the ingestion of, or timing creatine monohydrate did not seem to exert any additional influence over the measured outcomes. Retroactively registered on clinicaltrials.gov as NCT05451498.
Download or read book Creatine written by Melvin H. Williams and published by Human Kinetics. This book was released on 1999 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, scientific look at creatine--the supplement of choice for today's serious athletes and fitness enthusiasts--what it is, how it works, how to use it, and what it can do for an athlete. 19 photos.
Download or read book The Effect of Creatine Supplementation on Body Composition Intramuscular Phosphates and High Intensity Exercise Performance in Males and Females written by Dan MacLennan and published by . This book was released on 2000 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Creatine Supplementation and the Effects of Different Rest Intervals on Power Performance written by Diane Marie Brunner and published by . This book was released on 1999 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Creatine and Creatine Kinase in Health and Disease written by Gajja S. Salomons and published by Springer Science & Business Media. This book was released on 2007-10-16 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume places emphasis on the intricate interplay between creatine and creatine kinase function on one hand and proper brain function, neurodegenerative disease and/or neuroprotection on the other. The book, compiled by outstanding experts, provides a key reference summarizing the state-of-the-art in creatine and creatine kinase research. It is a must-read for understanding the links between creatine metabolism and neuroprotection as well as neurodegenerative disease.
Download or read book The Effects of Creatine Monohydrate Supplementation on Body Composition and Performance in Young Males written by Wes Warren Ruth and published by . This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Creatine and Whey Protein Supplementation on Body Composition in Middle aged Men During Resistance Training written by Kathrin Andrews Eliot and published by . This book was released on 2003 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Creatine Supplementation on Muscular Strength and Body Composition Following Resistance Training written by Nicholas Elston and published by . This book was released on 2005 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Creatine Supplementation and Strength Training on Components of Body Composition written by Julie L. Thwaits and published by . This book was released on 2000 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
