Author: Publisher:
ISBN:
Category : Athletes
Languages : en
Pages : 134
Book Description
The Effects of a 4:1 Ratio Carbohydrate/protein Beverage on Prolonged Exercise Performance and Subsequent Recovery
Author: The Effects of 4:1 Ratio Carbohydrate/protein Beverage on Endurance Exercise Performance, Muscle Damage, and Recovery
Author: Altered Carbohydrate and Protein Content in Sports Beverages
Author: Publisher:
ISBN:
Category : Beverages
Languages : en
Pages : 91
Book Description
Purpose: The purpose of this study was to compare the efficacy of different carbohydrate-protein recovery beverages following heavy endurance exercise. Methods: Twelve well-trained male cyclists completed a glycogen-depleting trial followed by a 4 hour recovery period before completing a simulated 20-km time trial. During the recovery period, subjects consumed one of three isocaloric beverages [high-carbohydrate/low-protein (HCLP); low-carbohydrate/high-protein (LCHP); carbohydrate (CHO)] at 0h and 2h, as well as immediately following the 20-km time trial. Creatine kinase (CK), muscle soreness, isometric peak torque (MVC), and mental/physical fatigue/energy ratings were measured pre- and post trial. Glucose and lactate were measured during the glycogen depleting phase and subsequent exercise. Results: Subsequent exercise performance was not significantly different between treatments (LCHP 50.3±2.7 min; CHO 48.5±1.5 min; HCLP 48.8±2.1 min). No significant treatment*time interactions were observed for isometric peak torque (MVC), muscle soreness, or mental/physical energy/fatigue ratings. Creatine kinase levels pre- (LCHP 153.5±68.1; CHO 132.6±39.9; HCLP 137.0±41.1) and post exercise (LCHP 172.4±53.1; CHO 150.8±47.4; HCLP 146.6±27.4) were not significantly different between treatments. Conclusion: Recovery beverages containing equal caloric content and differing proportions of carbohydrate/protein provided similar effects on muscle recovery and subsequent exercise performance in well-trained cyclists.
Practical Applications in Sports Nutrition
Author: Heather Hedrick FinkPublisher: Jones & Bartlett Learning
ISBN: 1284284301
Category : Health & Fitness
Languages : en
Pages : 529
Book Description
"Practical Applications in Sports Nutrition provides students with the latest sports nutrition information and dietary practices so they can assist athletes and fitness enthusiasts in achieving their personal performance goals. With data and statistics from the latest nutrition research and guidelines, it demonstrates effective ways to communicate sports nutrition messages to athletes and how to motivate individuals to make permanent behavior change"--
Effects of Post-exercise Recovery Drink Composition on Subsequent Performance in Masters Class Athletes
Author: Erica R. GoldsteinPublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Carbohydrate (CHO) and carbohydrate-protein coingestion (CHO-P) have been shown to be equally effective for enhancing glycogen resynthesis and subsequent same-day performance when CHO intake is suboptimal ([less than or equal to]0.8 g/kg). Few studies have specifically examined the effect of isocaloric CHO vs CHO-P consumption on subsequent high-intensity aerobic performance with limited time to recover ([less than or equal to]2 hours) in masters class endurance athletes. Participants (n = 22) were assigned to consume one of three beverages during a 2-hour recovery period: PLA (electrolytes and water), CHO (1.2 g/kg bm), or CHO-P (0.8 g/kg bm CHO + 0.4 g/kg bm PRO). All beverages were standardized to one liter (~32 oz.) of total fluid volume regardless of treatment group. One liter of a standard ready to drink sports beverage contains ~58 g of CHO. CHO powder was weighed in grams via a digital food scale and added to the existing liter of fluid to reach the total amount of CHO needed if a participant required more than 58 g of CHO. During Visit#1, participants completed graded exercise testing (VO2peak; cycle ergometer). Familiarization (Visit#2) consisted of 5 x 4 min intervals at 70-80% of peak power output [PPO, watts] with 2 min of active recovery at 50W, followed by time to exhaustion [TTE] at 90% PPO. The same high-intensity interval protocol with TTE was conducted pre-and post-beverage consumption on Visit#3. The ANCOVA indicated a significant difference among the group means for the posttest TTE (F2,18= 6.702, p =.007, [eta]2 =.427) values after adjusting for the pretest differences. Both CHO and CHO-P were effective in promoting an increase in TTE performance with limited time to recover in this sample of masters class endurance athletes.
ACSM's Sports Medicine
Author: Francis G. O'ConnorPublisher: Lippincott Williams & Wilkins
ISBN: 1451104251
Category : Medical
Languages : en
Pages : 887
Book Description
The field of sports medicine is evolving, accelerated by emerging technologies and changing health care policies. To stay up to speed and ace the Boards, you need a resource that moves at your pace. Sanctioned by the American College of Sports Medicine (ACSM), this handy review addresses all areas of the sports medicine subspecialty board examination--with coverage that spans the full spectrum of sports medicine, from medical to skeletal conditions related to the athlete. The editors and authors include orthopedic surgeons, family physicians, pediatricians, internal medicine specialists, physiatrists, certified athletic trainers, physical therapists, psychologists, nutritionists, exercise physiologists and more, ensuring that you'll benefit from the broad spectrum of expertise embraced by the specialty. Look inside and explore...* Seven convenient sections address general considerations, evaluation of the injured athlete, medical problems, musculoskeletal problems, principles of rehabilitation, sports-specific populations, and special populations.* Comprehensive coverage includes all topic areas featured on sports medicine subspecialty board exams.* Easy-access bulleted format makes essential facts simple to locate and recall.* Tables, figures, and algorithms make complex ideas easy to grasp and retain. PLUS...* An online companion resource includes nearly 1,000 board-style practice questions with rationale for correct and incorrect responses--a great way to test your knowledge and improve your exam performance!
The Effects of Carbohydrate-protein Supplementation on Endurance Exercise Performance, Recovery, and Training Adaptation
Author: Lisa Ferguson StegallPublisher:
ISBN:
Category :
Languages : en
Pages : 690
Book Description
Recent research suggests that adding protein (PRO) to a carbohydrate (CHO) supplement can have substantial benefits for endurance exercise performance and recovery beyond that of CHO alone. CHO+PRO supplements are often commercially available formulations consisting of carbohydrates (dextrose, maltodextrin) and whey protein. The effects of a supplement containing moderate protein and a low-CHO mixture on endurance performance has not been investigated. Also, the effects of CHO+PRO supplementation in the form of a natural food, flavored milk, on measures of recovery from acute endurance exercise, as well as on chronic aerobic exercise training adaptations, have not been characterized. Therefore, in this series of four studies, the effects of CHO+PRO supplementation on the following areas of endurance exercise performance, recovery, and adaptation are investigated: acute endurance exercise performance, inflammatory and muscle damage markers, muscle glycogen resynthesis, activation of signaling proteins involved in the initiation of protein synthesis and degradation, subsequent endurance exercise performance, and chronic aerobic training adaptations (maximal oxygen consumption, oxidative enzyme activity, body composition, immune cell levels, and inflammatory markers). Study 1 demonstrated that a supplement containing a low-CHO mixture plus moderate protein significantly improved aerobic endurance when cycling at or below the ventilatory threshold, despite containing 50% less CHO and 30% fewer calories relative to a higher CHO beverage. Study 2 demonstrated that CHO+PRO supplementation in the form of chocolate milk (CM) is an effective post-exercise supplement that can improve subsequent performance and provide a greater intracellular signaling stimulus for protein synthesis compared to CHO and placebo. Study 3 found that post-exercise CM supplementation during 4.5 wks of aerobic exercise training improves the magnitude of cardiovascular adaptations more effectively than isocaloric CHO or placebo, while the fourth study demonstrated that post-exercise CM supplementation during 4.5 wks of aerobic training improves body composition more effectively than isocaloric CHO or placebo. The fourth study also demonstrated that 4.5 wks of training does not appear to perturb resting immune cell concentrations or markers of inflammation and muscle damage. Taken together, the results of this research series suggest that CHO+PRO supplementation extends endurance performance, improves recovery, and increases training adaptations more effectively than CHO or placebo.
The Effect of Carbohydrate-protein and Carbohydrate Beverages on Subsequent Exercise Capacity and Hormonal Markers of Recovery
Author: Colin. J. ColyeAcute Topics in Sport Nutrition
Author: M. LamprechtPublisher: Karger Medical and Scientific Publishers
ISBN: 3805599935
Category : Medical
Languages : en
Pages : 166
Book Description
In high-performance sport an optimal diet and nutritional interventions can make the difference between victory and defeat. In recent years, sport nutrition research has increased. This publication provides scientifically-based information with regard to the bioefficacy of trendy sport supplements and dietary approaches off the mainstream. International experts in the specific fields inform and clarify under which circumstances the application of certain supplements and nutritional interventions would be beneficial, either for the performance or health of the athletes. A broad spectrum of recent topics in sport nutrition is provided: selected sport supplements aside of mainstream, nutritional interventions and athlete‘s health, hydration and fluid balance and current aspects in exercise and exercise recovery. Finally, the publication concludes with recent information about the risk of supplementation and inadvertent doping. The book will be of benefit to sport physicians and scientists, nutritionists, coaches and athletes, as well as to the sport nutrition trade and related industries.
Sports Drinks
Author: Ronald J. MaughanPublisher: CRC Press
ISBN: 1420037188
Category : Health & Fitness
Languages : en
Pages : 304
Book Description
Can sports drinks improve the way you play and exercise? Athletes-both competitive and recreational-turn to the consumption of sports drinks to optimize their performance. A volume in the Nutrition in Exercise and Sports Series, Sports Drinks: Basic Science and Practical Aspects provides a review of current knowledge on issues relating to the formu