aerobic and anaerobic
I found this in a book:
AEROBIC EXERCISE is any form of physical activity that can be performed without a break for at least 12 minutes. The muscles can keep working because they receive a constant supply of oxygen,while the energy they need is provided from the body's store of glucose (sugar),glycogen ( starch), and fat
The heart and the lungs have to work hardere to increase the amount of oxygen rich blood circulating around the body to the muscles. Because the muscles are not being pushed too hard,there is sufficient oxygen to meet their demands. As a result, the muscle cells tire slowly , and the exercise can be carried on for a long period.
Aerobic exercises are the best type of activity for increasing your general level of fitness, particularly the performance and efficiency of your heart,lungs ,and muscles, It is an essenctial part of any balanced physical fitness program
ANAEROBIC EXERCISE consist of short,sharp bursts of intense muslce activity,during withc the blood supply does not provide as much oxygen as the muscle need. The 110 yard ( 100 m ) sprint is one such activity.
Lacking oxygen,the muscles have to use other "anerocib" chemical processes to release the energy they require. These anaerobic reactions also produce lactic acid,which builds up rapidly in the muscles to cause fatigue , a heavy sensation, and even cramp. Anaerobic exercise cannot be continued for long ,and so will not improve the fitness of the heart and lungs..
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( anaerobic - it till not improve the fitness of the heart and lung??
is that truth?? now Im a litle confuse in this
( aerobic it is an essential part of any balanced physical fitness program ?)
it will not a balanced physical fitness to do both aerobic and anaerobic?? I find both important in my training
I do not know what the editor of this book is talking about it -
my other question - wich sport need more the anaerobic exercies than other ?