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Encyclopedia > Carbohydrate loading

In sports, carbohydrate loading, colloquially known as carbo-loading, is a strategy employed by endurance athletes such as marathon runners to maximize the storage of glycogen in the muscles. Modern day marathon runners The word marathon refers to a long-distance road running event of 42. ... Glycogen Structure Segment Glycogen is a polysaccharide of glucose (Glc) which functions as the primary short term energy storage in animal cells. ...


Carbohydrate loading is generally recommended for endurance events lasting longer than 90 minutes. For many endurance athletes the food of choice for carbo-loading is spaghetti. Because of this, hundreds of marathons and triathlons have huge spaghetti dinners the night before the race. For other uses, see Spaghetti (disambiguation). ... The three components of triathlon: Swimming, Cycling, Running A triathlon is an athletic event consisting of swimming, cycling and running over various distances. ...

Contents

Procedure

There are several periods of carbohydrate loading, since the original one has several possible modifications.


Original

The protocol of carbohydrate loading was originally developed in 1967 by Swedish scientist Gunvar Ahlborg. The original theory of carbohydrate loading was that, if the body's glycogen stores were depleted, it would store more glycogen than normal when carbohydrate intake returned to normal. Consequently, the original carbo-loading regimen began one week before the event, and called for three days of minimal carbohydrate intake (about 10% of total calories) and intense exercise to deplete the body's carbohydrate stores. Then for the next three days, the athlete would consume primarily carbohydrates (about 90% of total calories), and reduce the intensity of exercise to allow for maximum storage.[1] This is the way many Swedes prepare for Vasaloppet[2] Lactose is a disaccharide found in milk. ... Womens Vasa (Tjejvasan), start 2006 Vasaloppet is a long distance cross-country ski race (ski marathon) held in Dalarna, Sweden, annually on the first Sunday of March. ...


Without depletion

In the 1980s, further research led to a modified carbo-loading regimen that eliminates the depletion phase, instead calling for increased carbohydrate intake (to about 70% of total calories) and decreased training for three days prior to the event.[1] Most athletes now follow this modified regimen, and it is recommended by many coaches, although there are some athletes who still follow the original carbo-loading regimen.


Short workout

A new carbo-loading regimen developed by scientists at the University of Western Australia calls for a normal diet with light training until the day before the race. On the day before the race, the athlete performs a very short, extremely high-intensity workout (such as a few minutes of sprinting), then consumes 12 g of carbohydrate per kilogram of lean mass over the next 24 hours. The regimen reportedly resulted in a 90% increase in glycogen storage.[1] The University of Western Australia (UWA) is the oldest university in the state of Western Australia. ...


References

  1. ^ a b c http://www.teamintraining.org/all_page?item_id=457560
  2. ^ Swedish advice before the Vasaloppet

  Results from FactBites:
 
Carbohydrate Loading (570 words)
By L. Lee Coyne, Ph.D. Carbohydrate loading or Glycogen loading is a concept derived from research published in Sweden by Drs.
If an athlete glycogen loads to a maximum level they can be carrying an additional 4 to 6 pounds of water at the beginning of performance.
My advice is to maintain good muscle glycogen levels with 40 percent of calories coming from complex carbohydrates; observe good recovery practices (see article on what to eat for optimum performance) and during long endurance performances consume a high quality sport drink to maintain the blood glucose levels.
Carbohydrate - Search Results - MSN Encarta (196 words)
Carbohydrate, any of a large group of compounds in which hydrogen and oxygen, in the proportions in which they exist in water, are combined with...
Carbohydrates are the human body’s key source of energy, providing 4 calories of energy per gram.
Carbohydrate metabolism denotes the various biochemical processes responsible for the formation, breakdown and interconversion of carbohydrates in living organisms.
  More results at FactBites »

 
 

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