Michael Phelps diet

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Michael Phelps diet

• 193 cm, 85 kg, 8 body fat
• Very high metabolic rate
• Burning more calorie sitting than most people
  burn walking
• Consume 12,000 kcal/day
• Burn 1000 kcal/hr in training
• High CHO, mostly refined CHO
• Quick digestion, faster energy source
• Only has 1 hr between competitions
• Relatively high fat, not suitable for every
  athletes
• if youve got to eat that much, it better be
  enjoyable, or you wont be able to keep up

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Michael Phelps breakfast

• http//tw.youtube.com/watch?vQXRvXtcSu14
• 3 fried egg sandwiches cheese tomatoes
  lettuce fried onions mayonnaise
• 3 chocolate-chip pancakes
• 5-egg omelette
• 3 sugar-coated slices of French toast
• bowl of grits (???)
• 2 cups of coffee

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Michael Phelps lunch

• 500 g enriched pasta
• 2 large ham and cheese sandwiches with mayonnaise
  on white bread
• 1000 kcal energy drinks

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Michael Phelps dinner

• 500 g pasta, with carbonara sauce
• based on eggs, cheese, bacon, black pepper
• 1 large pizza
• 1000 kcal energy drinks

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Fuel Stores in Skeletal Muscle

• Glycogen 13-18 g/kg w.w.
• (75-100mmol glucosyl units/kg w.w.)
• 300 g glycogen in leg muscles
• Triacylglycerol 12 g/kg w.w.
• Plasma-derived FA only 50 total FA oxidized
  during exercise
• Reduction of 25-35 in intramuscular TG after 1-2
  hr at 55-70 VO2max
• Fat oxidation alone can only supply ATP at rate
  to maintain intensity of 60 VO2max
• Protein only stored as functionally important
  molecules

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Regulation of Energy Metabolism

• Hormones-
• Epinephrine
• Insulin
• Glucagon
• Cortisol
• Growth Hormone
• Intramuscular Factors
• ATP/ADP Pi
• AMP Ca

• Sympathetic nervous system
• - Norepinephrine

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Causes of Fatigue in High-Intensity Ex

• Can maintain 95-100 VO2max for 5 min
• Power/force drop 40-60 during 30s all-out ex
• Causes of fatigue
• Lactate, H (questionable)
• Ca transport slow, reduction in Ca re-uptake by
  SR
• Excitation-coupling failure, reduced nervous
  drive at spinal level
• In repeated bouts, incomplete PCr resynthesis
  during recovery between successive bouts

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Causes of Fatigue in Prolonged Ex

• Depletion of CHO
• Muscle CHO can fuel 80 min ex at
  marathon-running pace (19 kcal/min)
• Inability of fat oxidation to increase
  sufficiently to offset the deficit
• Ingestion of CHO during prolonged ex
• ?muscle glycogen utilization, fat mobilization
  and oxidation
• ?CHO oxidation, endurance capacity

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Metabolic adaptation to training

• Adaptations to aerobic endurance training
• ?capacity to oxidize fat and CHO
• ?relative cross-sectional area of type I fiber
• ?intramuscular TG
• ?capacity to use fat during submax ex
• Training for strength, power, or speed
• ?ATP, PCr, glycolytic energy delivery systems
• ?muscle buffering capacity
• Stretch, contraction, damage to muscle fibers
  during exercise provide stimuli for adaptation

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Influence of endurance training on hormonal
response to prolonged ex
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