CARDIOVASCULAR EFFICIENCY AND ENDURANCE: FOCUS: Aerobic conditioning can be improved by training the heart. The resting heart rate and blood pressure decrease as a direct result of aerobic conditioning. A slower heart rate coupled with the ejection of a larger volume of blood per beat indicates an efficient circulatory system. A person with a lower heart rate will be able to work at high level of intensity for long period of time. The heart rate will recover faster from exercise and return to its resting level more quickly. The heart’s ventricular cavity becomes larger from aerobic training. This permits the heart to accept more blood and expel it more powerfully. Throughout the course of an aerobic conditioning program, the heart will gradually adapt to the demands placed on it. Over a period of time, a person will find that the same workout, which was originally difficult, will be easy and can be performed at a lower exercising heart rate. The body possesses three separate systems for the production of energy. Each muscle cell in the body contains these energy systems. The three energy systems are the phosphagen system, the lactic acid system and the aerobic system. * The goal of a cardiovascular conditioning program is to train each energy system that subsequently be used for muscular contraction and exercise.
Posted on: Tue, 09 Dec 2014 15:21:08 +0000
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