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SWORD® 30 Serv Advanced Electrolyte Hydration Powder Resealable Bag w/Scoop
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SWORD® 30 Serv Advanced Electrolyte Hydration Powder Resealable Bag w/Scoop
SWORD® Performance electrolyte hydration was built to give your body the edge against the toughest challenges you face. Formulated specifically to improve hydration and help fight fatigue, SWORD® has everything you need to refuel before, during, and after undertaking demanding tasks; and nothing you...
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SHIELD®Zero 32ct Sugar Free Electrolyte Enhanced Powder Singles Bio Bag
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SHIELD®Zero 32ct Sugar Free Electrolyte Enhanced Powder Singles Bio Bag
ZERO Calories, Zero Sugar, Zero Artificial Sweeteners, Zero Compromises In An ALL NEW Biodegradable Resealable Pouch! SHIELD® Zero is a full-flavored healthy hydration beverage with balanced electrolytes that hydrates better and faster than water. Light, refreshing flavors from real fruit with zero sugar, and zero artificial sweeteners....
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SWORD® 24ct Advanced Electrolyte Powder Singles Bio Bag
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SWORD® 24ct Advanced Electrolyte Powder Singles Bio Bag
SWORD® Performance electrolyte hydration was built to give your body the edge against the toughest challenges you face. Formulated specifically to quickly improve hydration, recover and help fight fatigue, SWORD® has everything you need to refuel before, during, and after undertaking demanding tasks; and...
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A Brief History of the Sports Drink

Opportunities for Improvement

by Sword Performance 16 Dec 2015

In this series, Sword Performance reviews the changing tides of scientific thought. How did the founders arrive at their formula? Through careful analysis of past work in the study, and through their own work in the field.

A Brief History of the Sports Drink | Opportunities for Improvement

Multiple studies performed since the development of the first sports drink in the late 1960’s / early 1970’s have provided new information that has created a blueprint for an optimized sports drink. New understanding of the mechanisms for carbohydrate absorption from the intestines (multiple carbohydrate transporters), physiologic effects of ingested sodium, electrolyte composition of sweat, and mechanisms of fatigue (central and peripheral) have clearly suggested that a more effective sports drink can be produced.

We believe that a sports drink should have the following qualities:

1. The drink should utilize carbohydrate as its primary energy source. The amount of carbohydrate in the drink should fall within the range of 40 – 80 mg / L with an estimated optimum amount of approximately 60 mg / L (6% carbohydrate solution).

2. The drink should utilize multiple carbohydrates (rather than a single carbohydrate source) in order to take advantage of the gastrointestinal system’s multiple pathways to move carbohydrate from the intestine into the bloodstream.

3. The drink should be palatable, with a light taste that reduces the development of taste aversion during prolonged use. Athletes should be able to consume the drink for over 24 hours without becoming fatigued of the flavor.

4. The drink should be hypotonic in relation to the osmolality of blood.

5. The drink should contain sufficient sodium to improve fluid retention and distribution within the extracellular space and to help maintain the thirst drive. A sodium content of 700 – 800 mg / L should be sufficient to accomplish that. Excessive sodium reduces the palatability of a drink and can lead to fluid accumulation within the interstitial space while reducing intracellular fluid content.

6. Additional electrolytes are not necessary due to their lower concentrations in sweat. In addition to being unnecessary, adding additional electrolytes to a drink increases the likelihood of gastrointestinal distress.

7. The drink should not contain any substances that are not absolutely necessary to support physical exertion. This includes artificial colors and sweeteners. 

These are our beliefs as scientists, sports medicine physicians, and – most importantly –athletes who enjoy nothing better than testing our personal limits in a little friendly athletic competition. We believed that we could build a better sports drink. And we created SWORD®.

Read about Electrolytes and how they contribute next.

 

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