Looking Younger – The Commitment
Your eyes do not only serve as your key in functioning optimally everyday. They also can bring out the beauty in you. You can do it naturally but it can be enhanced further with the use of makeup. Try these styles and you will enjoy it.
Acne Skin Care Treatment Product
Finding beauty products with natural ingredients is important. Skin is the largest organ of the human body. Skin can absorb many things.
Select The Right Moisturizer For Your Skin
Shea Butter is a remarkable ingredient in the skin care business. It is used by many cosmetic companies as a must have. Have you ever thought where does this wonderful ingredient come from and what it can do for you. Find out more by reading this article.
Showing posts with label Muscle. Show all posts
Showing posts with label Muscle. Show all posts
Thursday, January 8, 2009
Monday, January 8, 2007
Anaerobic Biochemistry
Anaerobics are activities that are carried out 'without oxygen'. This terminology refers to the molecular level of respiration, not the respiration of the organism as a whole (i.e., breathing). During anaerobic exercise, the muscles being exercised have insufficient oxygen to meet the demands of the activity, and thus must also use alternate, non-oxygen-dependent processes to produce energy. The muscle does still receive oxygen during anaerobic exercise; the average drop in blood oxygen content throughout the body is likely minimal.
Anaerobic exercise begins with muscles utilizing stored creatine phosphate to generate the ATP that produces muscle contraction. After several seconds, further ATP energy is made available to muscles by metabolizing muscle glycogen into pyruvate through glycolysis, as it normally does through the aerobic cycle. What differs is that pyruvate, rather than be broken down through the slower but more energy efficient aerobic process, is fermented to lactic acid.
Muscle glycogen is restored from blood sugar, which is either released from the liver, from digested carbohydrates, or amino acids which have been turned into glucose.
Anaerobic exercise begins with muscles utilizing stored creatine phosphate to generate the ATP that produces muscle contraction. After several seconds, further ATP energy is made available to muscles by metabolizing muscle glycogen into pyruvate through glycolysis, as it normally does through the aerobic cycle. What differs is that pyruvate, rather than be broken down through the slower but more energy efficient aerobic process, is fermented to lactic acid.
Muscle glycogen is restored from blood sugar, which is either released from the liver, from digested carbohydrates, or amino acids which have been turned into glucose.
Sunday, January 7, 2007
Anaerobic Exercise
Anaerobic means "without oxygen", and refers to the energy exchange in living tissue that is independent of oxygen. Anaerobic exercise is brief, high intensity activity where anaerobic metabolism is taking place in muscles. During extended periods of exercise aerobic metabolism supplies the bulk of the energy and the exercise is termed aerobic exercise.
Examples of anaerobic exercise include weight lifting, sprinting, and jumping; any exercise that consists of short exertion, high-intensity movement, is an anaerobic exercise. Anaerobic exercise is typically used by athletes in non-endurance sports to build power and by body builders to build muscle mass. Muscles that are trained under anaerobic conditions develop biologically different giving them greater performance in short duration-high intensity activities.
Aerobic exercise, on the other hand, includes lower intensity activities performed for longer periods of time. Activities like walking, running, swimming, and cycling require a great deal of oxygen to generate the energy needed for prolonged exercise.
here are two types of anaerobic energy system, the ATP-CP energy system, which uses creatine phosphate as the main energy source, and the lactic-acid (or anaerobic glycolysis) system that uses glucose (or glycogen) in the absence of oxygen. The latter is an inefficient use of glucose and produces by-products that are thought to be detrimental to muscle function.
The lactic-acid system is the dominant energy system during high to maximal intensity exercise over short durations (up to about 1 min), but the lactic acid system can still provide a proportion of the required energy during aerobic exercise, as the body has the capacity to get rid of the anaerobic by-products at a certain rate. The efficiency of by-product removal by muscles can improve through training.
Examples of anaerobic exercise include weight lifting, sprinting, and jumping; any exercise that consists of short exertion, high-intensity movement, is an anaerobic exercise. Anaerobic exercise is typically used by athletes in non-endurance sports to build power and by body builders to build muscle mass. Muscles that are trained under anaerobic conditions develop biologically different giving them greater performance in short duration-high intensity activities.
Aerobic exercise, on the other hand, includes lower intensity activities performed for longer periods of time. Activities like walking, running, swimming, and cycling require a great deal of oxygen to generate the energy needed for prolonged exercise.
here are two types of anaerobic energy system, the ATP-CP energy system, which uses creatine phosphate as the main energy source, and the lactic-acid (or anaerobic glycolysis) system that uses glucose (or glycogen) in the absence of oxygen. The latter is an inefficient use of glucose and produces by-products that are thought to be detrimental to muscle function.
The lactic-acid system is the dominant energy system during high to maximal intensity exercise over short durations (up to about 1 min), but the lactic acid system can still provide a proportion of the required energy during aerobic exercise, as the body has the capacity to get rid of the anaerobic by-products at a certain rate. The efficiency of by-product removal by muscles can improve through training.
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