Tag Archive | "energy levels"

Don’t Fear Carbs


Why Carbs Can be a Dancer’s Best Friend

By Emily C. Harrison MS, RD, LD.
www.dancernutrition.com

Want better jump height, more endurance, improved brain function and better fat burning? Then carbohydrates can be your best friend.

Should I eat a high protein, low carb diet?

There always seems to be yet another new bestselling, yet unscientific diet trend that touts low carb, high protein eating. These diets are not good for anyone, but this is especially so for the type of activity that dancers do. Certainly adequate protein is important, but the body would prefer to spare it for important physiologic functions, not burn it as fuel. Carbs provide the type of fuel that the muscles need for dance. High protein diets can lead to lower bone mineral density and increased risk for long-term diseases. Plus, such diets have not consistently shown to help with weight management over the long term 1,2,3.

Carbs can be found in wholegrain pasta, bread, rice, quinoa, barley, dairy, all vegetables and all fruits. Of course, you should avoid simple sugars in sweets, juices, soda, refined grains and baked goods. Sugar won’t give you enough energy to get through barre, but have a simple sandwich or pasta with veggies, and you’ll dance strong all the way through grande allegro. You won’t get that same level of sustained energy from a protein shake, or a big piece of meat before class.

Weight management and carbohydrates

The main reason people believe the hype about low-carb diets like Atkins, South Beach and Paleo diets is that they do aid in weight loss…. at first. For most people, much of the weight is gained back often with a few extra pounds to spare1. Yo- yo dieting is not what dancers need, especially when it is at the expense of their health or performance. Quick weight loss, a hallmark of low-carb diets, can lead to loss of lean mass (muscle). Going on any very low-calorie diet and losing muscle means losing the most metabolically active tissue the body has. In addition to lowering the metabolic rate, the body adjusts to the restricted calories, setting one up for an endless cycle of gaining and losing. A better strategy would be to limit simple sugars and eat smaller more frequent meals and snacks with fruits, vegetables, whole grains and legumes as the foundation.

Carbohydrates and performance

There is no better fuel for athletic performance and brain function than carbohydrates. Complex carbs in whole grains, vegetables and fruits give the muscles a prolonged source of energy. It has been found that giving athletes carb-based snack bars between meals results in better energy output and anaerobic power, while keeping weight the same and lowering body fat4.

In one study carbohydrate intake prior to exercise was shown to be as effective in improving repeated jump height as the supplement creatine 5. The carb group didn’t gain weight but the creatine group did5. The American College of Sports Medicine recommends that athletes get 55-60% of their total calories from carbohydrates, and whole grains are also important sources of fiber, B-vitamins, iron and folate.

How much, and when?

Here are a few real-life examples:   

Everyone is different, but if 2000 calories are needed then 55-60% should come from carbs. That is about 275-300 grams because carbs have 4 calories per gram. Carb needs can also be calculated based on grams per kilogram of body weight. In general, recommendations are 5-8 g/kg depending on intensity of activity. So a 120lb (54.5kg) female dancer would need at least 272 grams per day.

Examples:
1 piece of bread: 12-17 grams
1 apple: 25-30 grams
1 cup quinoa or brown rice: 39-45 grams
1 cup green beans 8 grams

Long, busy class and rehearsal days

Plan ahead so that carbs and protein are eaten within one hour post exercise the day before.  Carbs should be eaten in the range of 30-60 grams per hour during the rehearsal day.

Show or audition day

If a dancer is feeling nervous and doesn’t want food sitting on their stomach, then they should be well-fueled 3-4 hours prior to the show/ audition. Then an hour or so before, opt for easy to digest carbs like pretzels, crackers or a sports beverage. High-fat and high protein foods take a bit longer to digest, so eat these in moderation if you’re nervous. Re-fuel as needed if it is a long show.

Rest day

On well-deserved days off, a dancer still needs carbs but not in the same amount as a workday.  Cut back just a little bit, and eat lots of fruits and veggies.

The subject of carbohydrate intake is big, and can’t be covered in one article. Check out my earlier Dance Informa article on glycaemic index for additional information.

Emily Harrison
Emily Cook Harrison MS, RD, LD
Emily is a registered dietitian and holds both a bachelor’s and master’s degree in nutrition from Georgia State University, USA. Her master’s thesis research was on elite level ballet dancers and nutrition and she has experience providing nutrition services for weight management, sports nutrition, disordered eating, disease prevention, and food allergies. Emily was a professional dancer for eleven years with the Atlanta Ballet and several other companies. She is a dance educator and the mother of two young children. She now runs the Centre for Dance Nutrition and Healthy Lifestyles. She can be reached at emily@dancernutrition.com www.dancernutrition.com

Sources:

  1. Four-Year Follow-up after Two-Year Dietary Interventions N Engl J Med 2012; 367:1373-1374. October 4, 2012.
  2. Campbell TC, Campbell TM. The China Study. 2006. Benbella Books
  3. Rohrman S, et al. Meat consumption and mortality – results from the European Prospective Investigation into Cancer and Nutrition. BMC Medicine, 2013.
  4. Benardot D, et al. Between Meal Energy Intake Effects on Body Composition, Performance, and Total Caloric consumption in athletes. Medicine & Sci in Sports and Exercise V37. 2005.
  5. Koenig C, Benardot D, Cody M, Thompson W. Comparison of creatine monohydrate and carbohydrate supplementation on repeated jump height performance. Journal of Strength and Conditioning Research. 2008;22
Photo (top): © Phinizrl, Dreamstime.com

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Energy Balance?


We always hear about the importance of what you eat, but could when you eat be just as important?

By Emily C. Harrison MS, RD, LD.

What’s the secret for dancing stronger, improving body composition, building muscle, having more endurance, and improving performance? Energy Balance.  Backed by sound science, the concept of energy balance is all about timing healthy meals and snacks to work for you.  Managing your energy balance can even play an important role in injury prevention.

What is Energy Balance?

Energy Balance is eating exactly the right amount of fuel for the activity you are about to do.   It is meeting and adjusting your body’s energy (calorie) needs as they change throughout the day depending on how hard you are working.   Let’s say you are going on a road trip….
Which option would you choose?

  1. Ok car, I’m not going to give you any fuel now, but when we get there I’ll give you all the fuel you need?
  2. Ok, car, I’m going to give you all the fuel you need for the trip now, but you have to figure out where to store it?
  3. Or…Ok car, I’ll fuel you up now for the next 2-3 hours and then I’ll stop and fuel you up again when you need it?

Obviously, we should choose option 3, but all too often dancers choose option 1 or 2.  Providing enough calories from healthy foods at carefully planned intervals when dancing gives the body the fuel it needs to perform its best.  When athletes have enough fuel, preferably from carbohydrates, they have been shown to have higher jumps and more endurance. Also, when dancers eat regular healthy snacks they tend to not overeat later.   If a dancer gets extremely hungry because he or she hasn’t eaten in a while, he or she tends to overeat more than needed within a certain time frame and those extra calories get stored.  Some is stored as a much needed type of fuel called glycogen which is easy to access when dancing the next day, but some is converted to body fat.  This is why eating smaller more frequent meals not only leads to better performance but also to more muscle and less fat.   We all know that working in an aesthetic art form means that we have to be judicious about what we eat, but planning meals and snacks wisely throughout the day can actually lead to better, stronger muscles and lower body fat percentage.

Whether someone dances two hours a day or ten, in order to perform their best they have to provide exactly the right amount of fuel to their system at the right time.  Going for too long without eating can backfire by forcing the body to come up with fuel from somewhere. When running on empty, the body breaks down muscle tissue and converts it into a type of fuel that the muscles and brain can use.

There are several problems with the all too common dancer strategy of not eating before and during classes/rehearsals/shows and waiting until later to eat: The body lowers your metabolic rate to adjust, the body burns muscle for fuel and thus makes you weaker and more prone to injury.  The brain has a harder time concentrating with no fuel, so choreography is harder to pick up and ultimately you end up with a higher body fat percentage and less muscle. Eating a small snack would have been a much more efficient source of fuel.

Here are my top 10 energy balance tips.

  1. Eat breakfast!
  2. Have a 100-250 calorie morning snack especially if you have rehearsals
  3. Provide some calories every 2-3 hours during your day
  4. Eat smaller more frequent meals
  5. Plan a 100-250 calorie afternoon snack around 3:00-4:00pm to stave off hunger
  6. Eat a reasonable dinner with carbohydrate, protein, and some healthy fats
  7. Do eat after dancing, but don’t overdo nighttime snacking
  8. Hydrate, hydrate, hydrate all day
  9. Sip on a sports drink if dancing for a long time and eating isn’t possible
  10. Focus on fruits, veggies, and whole grains when meal/ snack planning – these carbs are good!

Pack a snack in your dance bag like a museli bar, banana, dried fruit, nuts, and whole grain crackers or make a wrap with hummus, veggies and rice. Make some pasta salad with whole grain pasta, black beans, tomatoes, corn, and red peppers – yum!  Planning is the key to making healthy food convenient.

Want to know more?
Here is some additional info:

Working muscles require calories in order to provide enough readily available energy in the form of adenosine triphosphate (ATP) and creatine phosphate (CP) particularly for the short, high intensity bursts of activity that we dancers do in class and in performance.  Longer bouts of exercise (Swan Lake for example) require the use of stored glycogen and fats. The body adjusts what it uses for energy based on the intensity of work and level of training. Providing calories before exercising preferably from carbohydrates, results in better performance and helps preserve muscle mass.  For longer shows, sipping on a sports drink or having a granola bar during intermission will help dancers finish strongly.

According to the American College of Sports Medicine, “Inadequate energy intakes can result in loss of muscle mass, menstrual dysfunction, loss or failure to gain bone density, an increased rate of fatigue, injury, and illness”.  Injuries or illness can greatly affect a dancer’s training.  Dancers can have fewer injuries and illnesses by managing their energy.

Emily Harrison
Emily Cook Harrison MS, RD, LD
Emily is a registered dietitian and holds both a bachelor’s and master’s degree in nutrition from Georgia State University, USA. Her master’s thesis research was on elite level ballet dancers and nutrition and she has experience providing nutrition services for weight management, sports nutrition, disordered eating, disease prevention, and food allergies. Emily was a professional dancer for eleven years with the Atlanta Ballet and several other companies. She is a dance educator and the mother of two young children. She now runs the Centre for Dance Nutrition and Healthy Lifestyles. She can be reached at emily@dancernutrition.com www.dancernutrition.com

 

Top photo: © Ivan Mikhaylov | Dreamstime.com

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