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Aerobic Exercise

Posted March 28th, 2011 by admin

Aerobic exercise is any physical activity in which you sustain the activity for more than just a few minutes while your heart, lungs and muscles are working hard. Oxygen is transported through your blood so that your heart, lungs and muscles can do their function to support the activity that you are doing. There are many proven benefits of aerobic exercise, getting fit is just one of them.

Did you know that the average healthy adult inhales and then exhales approximately 7 to 8 liters of air every minute? When you do aerobic exercising you breath in deeply the oxygen contained in the air around you. The air enters the lungs and is transported by our bloodstream to the heart where it takes the oxygen it needs and then pumps the rest to other organs and parts of the body like the leg muscles that are working hard to support you while you are jogging. The average healthy adult has a resting heartbeat of 60 to 80 beats per minute. The average healthy heart can pump about 5 liters of blood every minute.

Once the oxygen is inside the muscle it is used to burn fat and carbohydrate for fuel so that our legs can keep moving. The better our muscles are at consuming the oxygen in our bodies, the more fuel (energy) we can burn, so the fitter we are, and the longer we can exercise, which brings in more oxygen.

If you were having a treadmill test and were an average adult that led a sedentary lifestyle your oxygen consumption would be close to 35 ml/kg/min. If however, you were an athlete your oxygen consumption might look closer to 90ml/kg/minute, what a difference!

Did you know that the more you exercise your heart muscle the bigger it gets? Conditioned hearts have a greater diameter and also a larger mass than hearts from individuals who lead sedentary lives. When the heart is better conditioned it fills with more blood because it is pumping more efficiently, which allows for greater filling time. The heart chambers fill with more blood so more gets pumped out with each beat. This equates to the heart not having to work as hard or beat as fast.

This is why athletes and individuals who are in really fit shape have slower resting heart rates. Just a few weeks or even days of regular aerobic exercises can improve the function and capacity of your heart. Your body gets much better at using the oxygen you consume to burn fat when you do regular aerobic exercises. If you are loyal in doing regular aerobic exercises you can in no time turn your body into a fit, lean, fat-burning machine.

WARNING
Seek Medical advice if you experience any of the following symptoms during aerobic exercise:
Chest pain, which may spread into the arms,neck or jaw.
Severe breathlessness.
Palpitations.
Dizziness or feeling faint.
Nausea and vomiting.
Exhaustion.


Daves Mental

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