Carbohydrates in Diet and Sports Nutrition

Carbohydrates in Diet and Sports Nutrition Clients are demanding a trainer/coach with extensive knowledge of sports nutrition. You will want to click over and learn how to quickly become a leader in the sports performance and sports nutrition fields, so you can get more clients and secure your future. What is a carbohydrate? A carbohydrate is a naturally occurring compound, or a derivative of such a compound, with the general chemical formula Cx(H2O)y, made up of molecules of carbon (C), hydrogen (H), and oxygen (O). Carbohydrates are the most widespread organic substances and play a vital role in all life. Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie. They also come in a variety of forms. The most common and abundant forms are sugars, fibers, and starches. Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found in foods and drinks.

Your body breaks down carbohydrates into glucose. Glucose, or blood sugar, is the main source of energy for your body’s cells, tissues, and organs. Glucose can be used immediately or stored in the liver and muscles for later use.

To learn how carbs work to improve health and sports performance, click over



17th annual ECSS Congress Bruges/BEL, July 4-7 2012

Hodgson, A.
University of Birmingham

Green tea (GT) is made from the leaves of the Camellia sinensis L plant which is rich in polyphenol catechins and caffeine. For some time now there has been an increasing interest in the capacity of GT to oxidise fats and promote weight loss which in turn may improve body composition, health and exercise performance. As a result, GT has become a popular dietary supplement on the sports nutrition market, especially as a fat burner and weight loss tool. Long term GT intake, in some but not all cases, has been shown to promote weight loss. It is believed that the anti-obesity effects of GTE intake may be attributed to elevated fat oxidation and total energy expenditure. In support of this, it has been shown that in a number of cases, GT intake (short term and long term) at rest and during exercise may increase energy expenditure and fat oxidation. Although several studies have observed positive effects the literature is inconclusive. The precise dose, duration of intake, and population that elicit maximal effects are currently unknown. In addition the bioavailability of GT catechins in vivo and the subsequent bioactivity is less well understood.
In humans, the bioavailability of GT following intake determines the bioactivity. GT catechins (parent compounds) are extensively metabolised (conjugated compounds) in the gut and liver, poorly absorbed and are found in low concentrations in vivo. The emergence of –omic technology is a new technique that can identify the interaction between the metabolic effects of GT and the association to the specific GT catechins following ingestion in vivo.
This firstly will advance our understanding of GT bioavailability and bioactivity, but also provide support and comparison to the putative in vitro mechanisms.
At present the precise mechanisms of GT and site of action are unclear. However the mechanisms behind the effects of long term GT may be different than those that explain the short term effects of GT. Short term intake of GT is thought to inhibit catechol-O-methyltransferase (COMT) in vitro, while caffeine is thought to inhibit phosphodiesterase (PDE) in vitro. Both of these mechanisms may act synergistically to increase lipolysis.
Alternatively long term GT intake may involve changes in expression of specific fat metabolism genes, which have been supported only by animal data. Both mechanisms lack the use of GT catechin compounds and concentrations similar to what is observed in vivo as well as supporting human studies. Therefore the mechanisms of GT remain speculative.
While GT may offer promising benefits to body composition, health and exercise performance, the lack of consistent evidence means that practical application of GT intake is currently not possible. Despite this, GT supplements are frequently used.


European Database of Sport Science (EDSS)

Technology and Sport Nutrition – Dr. Close

Technology and Sport Nutrition – Dr. Close

Invited Session “The Future of Sports Nutrition sponsored by GSSI”

Technology and sports Nutrition
Close, G.
Liverpool John Moores University

Over the past decade we have witnessed a remarkable increase in the use of technology in sport. This technology is not only targeted
at elite and professional athletes but also recreational athletes who are striving for personal improvements in both performance and
health. Although all departments of sports science are now heavily technology driven, the increase in nutrition technology appears to
be particularly popular. For example, it is increasingly common to witness people in supermarkets scanning bar codes with smart
phones or inputting data in restaurants to check the macronutrient composition of the meal, often without really knowing what they are
looking for. The assessment of energy intake and expenditure are perhaps two of the most difficult of all physiological measurements,
especially in professional athletes. Consequently, despite energy intake and expenditure being key determinants of athletic
performance, data from professional athletes is still somewhat lacking in the scientific literature. Whilst without question some
emerging technology is helping to simplify the assessment of energy intake and expenditure, there are also examples where the
technology is adding a layering of complexity to an already over complicated discipline. It is not uncommon to witness athletes
seeking their diet and exercise plans from faceless technology rather than seeking professional science backed advice. Perhaps
more importantly, in many cases the basic scientific questions regarding this technology have not been fully examined, such as how
valid and reliable are the tools in question? This presentation will look at some of the emerging trends regarding the use of technology
in sports nutrition and will examine if mobile technology has a place in the toolbox of the sports nutrition practitioner. Finally the
presentation will hypothesise where the technology is going next and how as practitioners we can utilize this technology to improve
our practice.

Red Raspberries & Sports Nutrition with Roberta Anding and Karen Collins

Red Raspberries & Sports Nutrition with Roberta Anding and Karen Collins

Red raspberries can enhance your sports nutrition. Whether for peewees, pros or somewhere in between, sports nutrition s no easy matter. Creating eating patterns that support both performance and health with foods that people truly enjoy is both an art and a science. In this video interview, respected sports dietitian Roberta Anding, MS, RD, LD, CSSD, CDE, shares expert tips with Karen Collins, MS, RDN, CDN, FAND, consulting dietitian for NPRC.

Dr. Shawn Arent: Physique vs Sports Nutrition

Dr. Shawn Arent: Physique vs Sports Nutrition

Shawn M. Arent, PhD, CSCS*D, FACSM is currently an Associate Professor in the Department of Exercise Science and Sport Studies at Rutgers University.He is also the Director of the Human Performance Laboratory and Director of the Center for Health & Human Performance in the Institute for Food, Nutrition, and Health.

Dr. Arent is a Certified Strength and Conditioning Specialist with Distinction with the National Strength and Conditioning Association and also a Fellow in the American College of Sports Medicine.

He completed his undergraduate degree at the University of Virginia and both his MS and PhD in Exercise Science at Arizona State University.His research focuses on the relationship between physical activity and stress and the implications for health and performance, with an emphasis on underlying biological and behavioral mechanisms.

His recent work has primarily focused on physiological responses to training-related stressors and their contribution to optimal performance and recovery.

He is specifically interested in the potential efficacy of acute and chronic resistance training and nutritional supplementation for improving functional capabilities and mental health.

Dr. Arent is on the national staff for the US Soccer Federation and works closely with a number of teams at Rutgers University.He also provides performance enhancement advice for youth, high school, collegiate, and professional athletes in a number of sports, including soccer, football, wrestling, baseball, softball, gymnastics, rowing, equestrian events, and cycling.

He has received research funding from the National Institutes of Health, the Robert Wood Johnson Foundation, Life Fitness Academy, the Center for Obesity Research and Intervention, and various biotechnology companies.

His work has also received considerable attention by the popular media, including Shape Magazine, Men’s Health, Prevention, and Self.

He is on the editorial board forSport, Exercise, and Performance Psychology, theJournal of Sport and Exercise Psychology,Comparative Exercise Physiology,and is an Associate Editor for theJournal of Strength and Conditioning Research.

In this podcast, Shawn and I discussed Physique vs Sports Nutrition.

Some of the topics we discuss are:

1.How you look and how you perform can be two separate things. Working with athletes, do you feel that the focus to look fit can be detrimental for performance in some athletes?

2.When it comes to body composition measurements, people often get obsessed with the numbers, striving to hit a certain body fat percentage. Do the exact numbers really matter that much or is it more of an assessment tool to track body composition? What are the limitations?

3.Do you feel that a lot of the sports nutrition recommendations gets misinterpret when it comes to physique nutrition? For example, carbohydrates and glycogen restoration?

4.Athletes are always looking for what can maximize their performance, while there is a trend in todays fitness industry of: “what’s the least you can do to get results”. What are your thoughts about this trend?