Ruby Slipper Run 10km/2mile

Ruby Slipper Run 10 km and 2 mile run
Saturday, September 29, 2012
10km 7:00am
2 mile 7:15 am
start at 6th & Lincoln, Wamego, KS

2012Ruby Slipper Run.pdf

KC Marathon, 1/2, 5km, and kids relay

WADDELL & REED KANSAS CITY MARATHON WITH IVY FUNDS
RUN ONE OF THE MOST BEAUTIFUL COURSES IN THE MIDWEST5K, HALF Marathon, FULL marathon, and  RELAY KIDS
October 20, 2012

For more information go to: http://www.waddellandreedkansascitymarathon.org/

Advances in sports nutrition, exercise and medicine

 A nice collection of recent articles.

  http://www.biomedcentral.com/series/asnem

Coconut water or a sports drink?

 Looks like coconut water and carbo/electrolyte sport drinks didn't reveal a difference with respect to hydration and exercise performance.
Comparison of coconut water and a carbohydrate-electrolyte sport drink on measures of hydration and physical performance in exercise-trained men

Douglas S Kalman, Samantha Feldman, Diane R Krieger, Richard J Bloomer Journal of the International Society of Sports Nutrition 2012, 9:1 (18 January 2012)

Abstract
Background: Sport drinks are ubiquitous within the recreational and competitive fitness and sporting world. Most are manufactured and artificially flavored carbohydrate-electrolyte beverages. Recently, attention has been given to coconut water, a natural alternative to manufactured sport drinks, with initial evidence indicating efficacy with regard to maintaining hydration. We compared coconut water and a carbohydrate-electrolyte sport drink on measures of hydration and physical performance in exercise-trained men.
Methods: Following a 60-minute bout of dehydrating treadmill exercise, 12 exercise-trained men (26.6 ± 5.7 yrs) received bottled water (BW), pure coconut water (VitaCoco®: CW), coconut water from concentrate (CWC), or a carbohydrate-electrolyte sport drink (SD) [a fluid amount based on body mass loss during the dehydrating exercise] on four occasions (separated by at least 5 days) in a random order, single blind (subject and not investigators), cross-over design. Hydration status (body mass, fluid retention, plasma osmolality, urine specific gravity) and performance (treadmill time to exhaustion; assessed after rehydration) were determined during the recovery period. Subjective measures of thirst, bloatedness, refreshed, stomach upset, and tiredness were also determined using a 5-point visual analog scale.
Results: Subjects lost approximately 1.7 kg (~2% of body mass) during the dehydrating exercise and regained this amount in a relatively similar manner following consumption of all conditions. No differences were noted between coconut water (CW or CWC) and SD for any measures of fluid retention (p > 0.05). Regarding exercise performance, no significant difference (p > 0.05) was noted between BW (11.9 ± 5.9 min), CW (12.3 ± 5.8 min), CWC (11.9 ± 6.0 min), and SD (12.8 ± 4.9 min). In general, subjects reported feeling more bloated and experienced greater stomach upset with the CW and CWC conditions.
Conclusion: All tested beverages are capable of promoting rehydration and supporting subsequent exercise. Little difference is noted between the four tested conditions with regard to markers of hydration or exercise
performance in a sample of young, healthy men. Additional study inclusive of a more demanding dehydration
protocol, as well as a time trial test as the measure of exercise performance, may more specifically determine the efficacy of these beverages on enhancing hydration and performance following dehydrating exercise.
Keywords: Hydration, Coconut Water, Sport Drink, Exercise

July 2012

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Coinciding exercise with peak serum caffeine does not improve cycling performance.

Skinner TL, Jenkins DG, Taaffe DR, Leveritt MD, Coombes JS.

Source

The University of Queensland, School of Human Movement Studies, Australia.

 J Sci Med Sport. 2012 May 31. [Epub ahead of print]

Bottom line, to boost your performance by as much as 2%, drink your coffee (caffeine) one hour prior to your endurance event.

Sports and Energy Drinks Responsible for Irreversible Damage to Teeth Though energy drinks found twice as likely to destroy enamel than sports drinks Featured in For the Media - News Releases, May 2012 Posted on Tuesday, May 01, 2012

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CHICAGO (May 1, 2012)—A recent study published in the May/June 2012 issue of General Dentistry, the peer-reviewed clinical journal of the Academy of General Dentistry, found that an alarming increase in the consumption of sports and energy drinks, especially among adolescents, is causing irreversible damage to teeth—specifically, the high acidity levels in the drinks erode tooth enamel, the glossy outer layer of the tooth.   “Young adults consume these drinks assuming that they will improve their sports performance and energy levels and that they are ‘better’ for them than soda,” says Poonam Jain, BDS, MS, MPH, lead author of the study. “Most of these patients are shocked to learn that these drinks are essentially bathing their teeth with acid.”   Researchers examined the acidity levels in 13 sports drinks and nine energy drinks. They found that the acidity levels can vary between brands of beverages and flavors of the same brand. To test the effect of the acidity levels, the researchers immersed samples of human tooth enamel in each beverage for 15 minutes, followed by immersion in artificial saliva for two hours. This cycle was repeated four times a day for five days, and the samples were stored in fresh artificial saliva at all other times.   “This type of testing simulates the same exposure that a large proportion of American teens and young adults are subjecting their teeth to on a regular basis when they drink one of these beverages every few hours,” says Dr. Jain.   The researchers found that damage to enamel was evident after only five days of exposure to sports or energy drinks, although energy drinks showed a significantly greater potential to damage teeth than sports drinks. In fact, the authors found that energy drinks caused twice as much damage to teeth as sports drinks.   With a reported 30 to 50 percent of U.S. teens consuming energy drinks, and as many as 62 percent consuming at least one sports drink per day, it is important to educate parents and young adults about the downside of these drinks. Damage caused to tooth enamel is irreversible, and without the protection of enamel, teeth become overly sensitive, prone to cavities, and more likely to decay.   “Teens regularly come into my office with these types of symptoms, but they don’t know why,” says AGD spokesperson Jennifer Bone, DDS, MAGD. “We review their diet and snacking habits and then we discuss their consumption of these beverages. They don’t realize that something as seemingly harmless as a sports or energy drink can do a lot of damage to their teeth.”   Dr. Bone recommends that her patients minimize their intake of sports and energy drinks. She also advises them to chew sugar-free gum or rinse the mouth with water following consumption of the drinks. “Both tactics increase saliva flow, which naturally helps to return the acidity levels in the mouth to normal,” she says.   Also, patients should wait at least an hour to brush their teeth after consuming sports and energy drinks. Otherwise, says Dr. Bone, they will be spreading acid onto the tooth surfaces, increasing the erosive action.