10.2.13 kin 110 class notes- Energy drinkso Blue flavor of Gatorade/powerade Not anything in nature…o Gatorade 6% carb 110/30 (Na/K)o powerade 8% 45/45 (Na/K)o both are combination of sugars basically- Gatorade – quaker oats, pepsi- Powerade – coca cola company- Cokeo 100 kcal per servingo 11% carbso 35/0 (Na/K)- advertising & marketing is where companies put most of their efforto Gatorade – “water is not enough” Has a graph of people who drink Gatorade doing much better than people who drank water, carb only, and nothing What to take away from it?- **Gatorade is superior** (?) mean fluid absorption rate mL/cm intestine/hr- ^ means that the intestine cells took up Gatorade slightly faster than water…etc- doesn’t mean that they performed better- concentrations up to 8% do not slow absorption from intestineo Most sports drinks also contain electrolytes (Na+, K+) to replace sweatlosses of electrolytes- How much CHO can you use during exercise?o Use of CHO during exercise vs. g of CHO per minute Reaches a max point (about 1.2 g per minute) Can’t get much more efficient than that- 0.5 to 1.0 g/mino 30 – 60 g CHO per hour of exercise is the recommendation (assuming you need it)o 30 min vs. 2 hours, determines how much you needo 6g/100 mLo recommendation: 500 mL (1/2 quart – 16 oz)– 1 L (1 quart – 32 oz)- do you need sports drinks?o 1886 John Pembertono coke can cure anything! (?)- 2002 Coke vs. other drinkso 8 male cyclists (Vo2 max = 71 ml/kg/min = highly trainedo Each test: 2 hours at 70% VO2 max ride hard as possible for 25 km- 4 trialso 6% CHO – Evanston IL (control condition)o 6% CHO – with caffeine slightly bettero Caffeine free coke same as gatoradeo Plain old coke (has caffeine) slightly better- Energy gelso Gatorade 110 kcal 27 CHO (g) 50/50 (Na/K)o Powerade/power gel120 kcal 26 45/45o GU 100 kcal 20 55/40 All made with maltodextrin Consistency is weird to get used to… Once you get over this it becomes more palatableo JELLO 90 kcal 17 15/0 ****made with corn syrup- Hot weather + exercise + adderal = BAD COMBOo US Olympic athletes & adderol– use them for performance enhancemento Adderol raises body temperature – overheating?o 70% of people on campus taking adderol don’t have a prescription!- Why energy gels?o Gels absorbed faster than bars = digestion & absorption much fastero Hard to get enough CHO in drinks without large volume of
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