Sport Nutrition, Altitude, Heat – Stacy Sims

Dr. Stacy Sims joins us today to share her experience in altitude, heat and the sex differences in sports training and nutrition. Stacy has worked with many organizations including Clif-Bar, USA Cycling, Standford University and her own company Osmo nutrition.
stacy sims

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Social and Links


TOPICS AND LINKS FROM TODAYS SHOW:

  • Stacy’s Athletic Palmairs (Bio)

 

  •  Tell us about what and where you do what you to these days = 12 projects, marine science, female athlete health, marine peptides,

 

  • Roar – What would you change if you did a 2nd edition of the book? change heat – women need ‘primer’ heat exposure
  1. microbiome
  2. master and menopause
  • HEAT 
 => adapt – cardio adapt, sweat sooner , more dilute, more blood vol
 => sauna or spa – passive heat ex. while dehydrated 7-9 days in a row
=> temps? 40-42c hot tub palms and feet in   + SAUNA = 60-180 (top and bottom levels) = monitor resting hr
 =>
 => race venue early and hiit middle of day, air conditioning
=> youth before puberty not cope as  well, slow to sweat and drink => hormones come after puberty, women need primer->
                => masters, after menopause – cool beverages, passive heat exposure, no sunburn as ruin skin temp (UV protecting layers)
=> over-dress???? possible psychological? or placebo
  • ALTUDE? 
 = sea level to altitude – challenge to o2 delivery -> blood vol expansion can help (include more red cells)
 = also more carb/hydration at altitude
= altitude then
  • ALtitude for females
 = high hormone phase – higher resp. distress
 = higher carb at altitude and harder to access at high hormone phase -> heat adapt would help
 = can maintain every ~5 days
= fly in and fly out within 24hrs if no prep, otherwise 14-21 days is ideal. 3-4 days is worst but then rebounds ( there is individual difference )
 = weekends in mountains ahead of race w. riding and then sea level sauna could be a great combo
 = altitude tents = sleep quality is an issue, fitness
  • Biggest downfalls at Leadville misstepttep nutrition (increase carb and hydration) and sleep and recover (nutrient timing – post workout)
   =
  • Mapping Menstrual Cycle 
   =Fitter woman –
  = Hello CLUE –
   = GOOGLE –
  = make sure to track mood, feeling, training, and see patterns
 = training peaks
  • Adjusting nutrition and zones/threshodl for high hormone phase of period
  • Timing Period?  
  = off of birth control?
  = birth control may blunt adaptation to HIIT
  = never in low hormone state, start bleeding – folicular phase first 2 weeks, then high hormone phase (luteal or high hormone phase)
  =
  • Athlete Under-eating – Talk me through this concept of an overweight athlete and how to implement changes without tipping things too far?
  •   low energy availbility – need enough food to keep resting metabolic functioning (breath, endocrine, etc)
  • adding daily living more cals
  • ading training more cals
  • if drop cals then rmr then fatigue, more fat,  in only 4 days see thyroid dysfunction = eat more??
  • even 500 kcal will get there.
  • timing calories can help –
  • workig athletes who delay will see symptoms of relative energy def. (catabolic state)
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