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4/5/2018 5 Comments

Dancing with Poor Nutrition - Risks and Recommendations

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Dancers consume fewer calories than they expend (Dahlstrom et al., 1990; Beck et al., 2015;  Hassapiduo et al., 2001; Doyle-Lucas et al., 2010; Brown et al., 2017) due to busy schedules, deliberate calorie restriction, pressure to maintain  low body weight, and a lack of knowledge. Taking class on an empty stomach increases muscle breakdown, which is undesirable for dancers who need strength to dance. It is critical that dancers consume carbohydrates prior to training to reduce muscle fatigue and help preserve muscle fibers that generate power for jumping. The purpose of a pre-exercise meal - consumed within an hour or less before training - is to hydrate, top off glycogen stores, and decrease hunger. If you take a class early in the morning, you have most likely fasted overnight and will need carbohydrates to help fuel your first class. Consuming carbohydrate spares the use of protein for energy, thereby freeing up protein to synthesize muscle and repair tissue. Poor nutrition may result in the following consequences:

  • Delayed recovery – Overtraining and reduced caloric intake can result in delayed muscle rebuilding/recovery which can cause reduction in strength and endurance.  
  • Immune dysfunction - Dance training produces stress hormones that trigger the release of stored energy. If these stress levels remain high, immune function can be impaired.
  • Reproductive health - Females with inadequate nutrition may stop menstruating, thus compromising bone health and reproductive function (Doyle-Lucas et al., 2010).
  • Stress fractures – Lack of caloric intake before class increases susceptibility to muscle fatigue. Improper technique, stress, muscle fatigue, and inadequate calcium/vitamin D intake increases the risk/frequency of stress fractures.
  • Weak nails, brittle hair, dry skin - Insufficient protein and micronutrient intake leads to compromised health of nails, hair, and skin. Once the nutrient deficiency is corrected, these issues usually resolve quickly.

Recommendations
Dancers should consume about 15 calories per pound body weight, plus the training energy expenditure, which is approximately 200 calories per hour of class or rehearsal. For example, a 130-pound (60-kg) dancer might need 1,860 calories per day plus an additional 500 to 800 calories to meet the demands of class, rehearsal or performance that day, for a total of 2,360 to 2,660 calories. Nutrition needs are very individualized, so it is important that dancers seek dietary advice from qualified specialists (i.e., a Registered Dietitian for dancers).
References:
Brown, M. A., Howatson, G., Quin, E., Redding, E., & Stevenson, E. J. (2017). Energy intake and energy expenditure of pre-professional female contemporary dancers. PLoS ONE, 12(2), e0171998.
Dahlstrom M, Jansson E, Nordevang E, Kaijser L. (1990). Discrepancy between estimated energy intake and requirement in female dancers. Clinical physiology; 10(1):11-25. Epub 1990/01/01.
Hassapidou MN, Manstrantoni A. (2001). Dietary intakes of elite female athletes in Greece. Journal of human nutrition and dietetics: the official journal of the British Dietetic Association;14(5):391-6. Epub 2002/03/22.
Kostrzewa-Tarnowska A, Jeszka J. (2003). Energy balance and body composition factors in adolescent ballet school students. Polish Journal of Food and Nutrition Sciences;12(3):71-5.
Beck KL, Mitchell S, Foskett A, Conlon CA, von Hurst PR. (2015). Dietary Intake, Anthropometric Characteristics, and Iron and Vitamin D Status of Female Adolescent Ballet Dancers Living in New Zealand. Int J Sport Nutr Exerc Metab; ;25(4):335-43. Epub 2014/11/12. doi: 10.1123/ijsnem.2014-0089 25386731
Doyle-Lucas AF, Akers JD, Davy BM. (2010). Energetic efficiency, menstrual irregularity, and bone mineral density in elite professional female ballet dancers. J Dance Med Sci;;14(4):146-54. Epub 2010/01/01. 21703085
Hirsch NM, Eisenmann JC, Moore SJ, Winnail SD, Stalder MA. (2003). Energy Balance and Physical Activity Patterns in University Ballet Dancers. Journal of Dance Medicine & Science;7(3):73-9.

Sousa, M., Carvalho, P., Moreira, P., Teixeira, V. (2013). Nutrition and Nutritional Issues for Dancers. Medical Problems of Performing Artists, 28, 119.
Montanari, A., & Zietkiewicz, E. A. (2000). Adolescent South African ballet dancers. South African journal of psychology, 30(2), 31-35.

5 Comments

2/16/2018 26 Comments

Fuel Your Dancing with RD-Approved Smoothie Recipes

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Do you need some unique ideas for a breakfast smoothie or a portable meal? Check out these recipes from Nasira. The instructions are simple for each: add all ingredients to a blender, puree until smooth, and enjoy! Consider using an insulated thermos to keep your smoothie cold until lunch or snack time. 



​Oat Avocado Smoothie​
½ cup ​plain non-fat Greek yogurt
1/2 cup unsweetened almond milk
¼ cup raw rolled oats
1 frozen ripe banana
¼ cup mashed avocado
½ ripe pear
1 Tbsp ​ground flaxseed
1 scoop soy or whey protein powder

Cocoa Almond Smoothie​
1 very ripe frozen banana​
3​ Tbsp almond butter
¾ cup white Northern beans (drained)
1 Tbsp chia seeds or flaxseeds​
2 Tbsp unsweetened cocoa powder
1 cup unsweetened almond milk ​

Green Vanilla Mint Smoothie
½ avocado
¼ cup ​unsweetened almond milk
¼ cup fresh baby spinach​
F​resh mint leaves or ½ tsp mint extract
¼ cup vanilla or plain whey protein or egg white protein powder​
2 Tbsp unsalted pistachio nuts ​
1 Tbsp Stevia
1 tsp vanilla extract​

Strawberry Banana Smoothie
1 cup unsweetened almond milk
1 cup strawberries, quartered
1 banana, frozen
1/2 cup plain greek yogurt
1 Tbsp ground flaxseed meal
2 scoops soy or whey vanilla protein powder

Tropical Chia Fruit Smoothie
1 cup unsweetened almond milk
¼ cup unsweetened shredded coconut
½ cup mango chunks, fresh or frozen
½ cup pineapple chunks, fresh or frozen
2 scoops soy or whey protein powder

26 Comments

2/7/2018 0 Comments

Meal Planning for Long Days at the Studio

Good nutrition is essential to help dancers achieve ideal body composition and ensure adequate energy to support growth and fuel training. Training may last for the majority of the day and run over several meal times, so it's important to take a variety of snacks and small meals along to the studio or rehearsal venue. If there are small breaks between classes, light snacks like cereal bars, smoothies, fruit, and low-fat yogurt are ideal. If there are larger breaks during the day, sandwiches, wraps, frittatas, rice, couscous, potato, or pasta salad might be more suitable. Protein should be included in each snack to repair and maintain muscle. Protein synthesis (i.e., muscle building) occurs by consuming as little as 15 to 25 grams of complete protein (e.g., egg, dairy or soy) after exercise. There are numerous foods that offer quality, complete protein - you can learn more about them in our upcoming post about protein quality! Including healthy fats, such as the kind found in nuts and seeds, in your snacks will promote concentration and enable quick thinking during rehearsals.  
Here is an example of a one-day meal plan for a day consisting of two dance classes (1.5 hours each) and an evening rehearsal (1.5 hours):
  • Breakfast: Homemade Smoothie
    • 1 cup skim milk or unsweetened soy milk
    • 1 cup frozen or fresh berries
    • 1 banana
    • 1 cup fresh spinach or kale
    • 2 Tbsp ground flaxseed
    • 1 scoop soy protein isolate or whey protein 
  • Morning snack: 8 dried apricots and 28 raw almonds
  • Lunch: Whole-grain tortilla (e.g., La Tortilla Factory Whole Wheat) filled with lean turkey, lettuce and tomato, 1 cup yogurt (e.g., Dannon Greek Light n’ Fit)
  • Pre-afternoon training: Whole-wheat toast with 1 Tbsp peanut natural butter (e.g., Adam’s or Laura Scudder’s)
  • During training: Drink a bottle of water
  • Dinner: 4 oz. lean chicken, 1 cup steamed brown rice, and 1 cup vegetable stir-fry cooked in 1 tsp canola oil 
  • Night-time snack: 2 cups air-popped popcorn seasoned with herbs and spices, 1 cup nonfat plain Greek yogurt, 1 to 2 pieces fresh fruit

This is a basic example. Food options are customizable according to your schedule, food preferences, and tolerances. An individual meal plan requires preparation, so don’t hesitate to bulk prep on the weekends to allow for easy meal packing during your busy week of class and rehearsal.
 
Check back soon for more recipe ideas from Nasira!
0 Comments

1/1/2018 3 Comments

Welcome to Health en Pointe!

Our goal is to empower the dance community by providing helpful tips and resources to optimize health, improve function, and ultimately extend one’s career. Pursuing a successful dance profession should not inflict chronic pain, perpetual stress, or diet confusion. The competition and politics of the dance world can be discouraging, but with realistic and intelligent strategies to address your challenges, you can thrive as a dancer! Health en Pointe provides evidence-based information on injury prevention, nutrition, and wellness for current and former dancers. 

We hope you find Health en Pointe to be an integral resource and become a better dancer because of it.  We encourage your active participation in this blog and welcome comments, questions, and sharing. Please visit us often!
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