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"I think you guys [gals ?] are the best. Free shipping on hammer products and super fast service. What's not to like?"

Nancy H.


Proline Sports Nutrition & Equipment,

I was shopping for the product below using Google as which time I saw your Google add. This was the first I heard of your company. I went to your site and liked what I saw and proceeded to order the Optygen HP. The order was placed on late Friday afternoon and was delivered (to my surprise) on Saturday. Your service is awesome as well as your price match guarantee. There is no doubt that I will continue to use you in the future, as well as recommend you to others.


Brian H
Aurora, IL
 I am very impressed with your customer service.  I was worried about getting my order with a marathon a week and a half out.  Wow, less than 24 hours and my order was sitting on the porch.  That is phenominal service.  I will definately shop with you again.  I have had free shipping take 10 days.  Proline Sports Nutrition is a site I will recommend to my many running/cycling buddies.  Thanks for the great response.  BTW, that info on the Hammer Nutrition products was wonderful!!  It helped me hone in on my nutrition/hydration plan for my marathon.  I printed off the entire 120 pages!  This is my 4th marathon.  I've trained hard, and my Hammer plan I do believe will give me a PR.

First Endurance Pre Race

PreRace Clinical Study (Preliminary Results)

South Dakota State University conducted an independent study on PreRace to determine its effectiveness on cycling endurance.  The yet to be published, double-blind placebo, controlled study used seven trained cyclists in a 40K time trial.  Each cyclist performed two 40K time trials.  On the first TT the cyclist consumed either a placebo or PreRace mixed with one serving of EFS 30 minutes prior to doing a 40K TT.  One week later each cyclist would switch the protocol and receive the opposite of what he/she received the previous week.

-Time trial was 3' 20'' faster than with the placebo
-Watts increased by 15
-Work output increased
-No significant change in heart rate
-No significant increase in RPE (Rate of Perceived Exertion)

Further details of this study will be available once the study has been published.
Discussion:  These results, though surprising in their magnitude, are precisely what we would expect from PreRace.   The ingredients in PreRace have been studied extensively for their ability to improve cardiac output, stimulate nitric oxide and stimulate the central nervous system in addition to improving mental acuity.

Nitric Oxide stimulation causes the blood vessels to dilate which, as expected, allows more blood to pass through.  L-Taurine improves cardiac output so more blood can be pumped through blood vessels.  The caffeine, theobromine and quercetin stimulate the central nervous system so the athlete is mentally and physically prepared to go harder.  It stands to reason that this clinical study demonstrated improvements in performance, watts and work output even though there was no increase in perceived exertion or heart rate.


The primary electrolytes are sodium, potassium, calcium, magnesium and chloride. Cells require a complex electrolyte balance between intracellular and extracellular milieu which maintains a precise osmotic gradient. This osmotic gradient is regulated by all 5 electrolytes and drives proper hydration. For superior hydration and elimination of cramping, make sure to consume all 5 electrolytes.


Resources for Today's Endurance Athletes

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