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Translating Sports Nutrition Essentials
into Clinical Practice
Sarah Dobkins, MS, RD, CSSD
Board Certified Specialist in Sports Dietetics
Texas Children’s Hospital The Woodlands
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Nothing to disclose
Disclosures
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Objectives
• Identify obstacles that prevent athletes from putting a sports nutrition plan into practice
• Discuss practical tips to help athletes overcome nutrition obstacles
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Outline
• Current Challenges
• Best Practices
– Fueling• Energy availability
• Energy and Protein needs
• Hydration
– Supplements
– Body composition
– Recovery
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1904 Summer Olympics –
Men’s Marathon
Author: unknown
Source: "The Olympic Games 1904", report by Charles J.P. Lucas
Author: photographer of the IOC
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Challenges Young Athletes
Face• Energy & Hydration-
– Limited time to eat and drink during school hours
– Busy schedules
– Most high school athletes go into practice on <1,000 calories
– Athletes are dehydrated before even starting practice
– Sleep is prioritized over eating
– 30% of HS athletes do not eat breakfast
• Lack of education on how to safely alter body composition
• Interested in supplements
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Low Energy Availability• Energy Availability (EA) = the amount of energy
available to the body to perform all other functions
after the cost of exercise is subtracted
– Sets the foundation for health
and success in sport
• Screen For:
– Low bone density
– Menstrual dysfunction
– Decreased performance
– Stress fractures
– Weight loss
– Mood changes,
low self esteem
De Souza, Bri J Sports Med 2014
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Energy Requirements• Determined by?
• Calories are the body guard!
• Should be periodized and individualized
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Protein: Sports and Exercise• Misconceptions:
– A survey of male collegiate athletes indicated
67% did not know the protein recommendations
– 33% estimated the need at 8.7 g protein/kg
• Athletes may benefit from protein intakes greater than the
RDA of 0.8g/kg/day
– Suggested Daily Intake for Athletes: 1.2 - 2.0 g/kg body weight/day
– Suggested meal intake: Aim for 15-30 g of high quality protein after workouts
and at main meals
J Acad Nutr Diet. 2016: 116:501-528
Fox et al. JISSN. 2011
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Protein: Timing and Quality Matter
Source: National Dairy Council
TIMING
• Teens tend to eat most of their protein
in the evening
• Even distribution of protein throughout
the day and immediately after training
can maximize the anabolic response
QUALITY
• Leucine is a key essential Amino Acid
for muscle hypertrophy
• Pop-tarts ≠ Leucine
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Have a Recovery Plan!
• Carbohydrate – Replenish glycogen
• Protein – Rebuild muscle
• Fluids – Rehydrate
• Window of Recovery – aim to consume a snack/meal within 30-45 minutes of
stopping exercise
• Encourage athletes to pack a recovery snack and leave in locker
• Encourage players to bring sports drink to practice and weigh-in before/after
3 R’s to Recovery
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Hydration• Develop a drinking plan based on body weight changes to
minimize weight loss ≤2% body weight
• Monitor sweat rate and urine color
• Drink 20 oz. for every 1 pound lost
• Sports drinks recommended >1 hour of exercise or hot/humid
conditions
• Don’t forget high water volume foods
Drink up! Fluid needs are higher during:
Heat Travel
Humidity Altitude
Hard training Illness
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Body Composition Management• Body composition matters to all athletes…
body fat loss/lean mass gains
• Body Mass Index (BMI) – use with caution in athletes
• Do not overemphasize weight as a measure of success
• Focus on:– How they feel
– Athletic performance
– Power to Weight (PWR) ratio – the amount of power that can be generated per kilogram of body weight
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Understanding Supplements• Not regulated by the Food and Drug Administration
– Manufacturers are not required to prove their
products’ safety, purity or effectiveness
• Look for the NSF stamp
• No amount of supplements can make up for poor fueling
• Just because it’s certified doesn’t mean it works
• 2016 Sports Position Paper – Dietary supplements and sports foods with evidence-based uses in sports nutrition
Food is 100% legal
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What Can a Sports Dietitian Address?
• Body Composition
• Chronic Fatigue
• GI upset with exercise
• Disordered eating in athletes
• Irregular menstrual cycles
• Stress fractures
• Race day fueling plans
• Iron Deficiency Anemia
• Low Bone Mineral Density
• Poor eating habits
• Sports supplement use
• Diabetic athlete
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Referral Process
Refer to TCH Sports/Ortho MD
Sports/Ortho MD will place referral
for sports RD
Community Pediatrician
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Summary• Body composition versus scale weight
• Energy availability sets the foundation for health and success in sport
• Nutritional needs: should be periodized and individualized
• Consume 15-30 g high-quality protein
within 30 min of workout
• Dehydration is the most common performance-
sapping mistake and the most preventable
• Athletes want a competitive edge– Supplements are typically prioritized over food
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Resources• www.nsfsport.com
• www.scandpg.org
• Consider referring patients to a sports dietitian to further discuss nutrition status and goals.
Thank you!
Sarah Dobkins, MS, RD, CSSD
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