Muscle Part 1: Endurance and Fuel
Endurance.At events such as a marathon, cross-country skiing, cycling and the 10 km skates, endurance decides who wins. However, endurance plays a role in all sports.
The endurance can be enhanced by certain training forms where:
• the capacity of the muscles to store and burn fuel is increased
• the oxygen supply of the muscles is improved - muscles need oxygen for efficient combustion.
Fuel.The food is divided into 3 Macro nutrients.
■Protein. This is not a good source of immediate bedchikable energy. The body uses protein to build body tissues and muscles through the amino acids contained in these proteins. The body can not store these proteins.
■Fats.As a source of energy during a force effort, fat is of secondary importance. However, in the long run fat can play an important role as muscle fuel. It is stored in the muscles, under the skin and round the internal organs.
■Carbohydrates (Sugars and starch). This is the main bton of energy for physical activity. The body stores carbohydrates in the muscles and in the liver in the form of glycogen.
The body is not able to absorb enough fuel in the form of food during training to cover consumption. This means that if you start a competition with an extra large supply of glycogen in your muscles, your endurance is greater.
Factors limiting the endurance of muscles are:
• The loss of muscle glycogen, the main fuel of muscles.
• The loss of fat reserve stored in the muscle, the second-key fuel of muscles.
• Low blood sugar (hypoglycemia), because blood sugar is an additional source of fuel for the muscle.
• Accumulation of lactic acid, a breakdown product formed only in the event of a lack of oxygen due to the breakdown of muscle glycogen
• Wamrtestowing in the muscles (hyperthermia)
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Maria
4 years ago
es importante la actividad fisica!!!!😍😍😍😍👌👌👌👌👌
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