Monday, January 16, 2012

comparing and contrasting

Fatimah Tuzzahra, 3 BIA

The Importance of Regular Exercise


Compare and Contrast Aerobic and Anaerobic Exercise

     Aerobic and anaerobic exercise is a form that has a common purpose to nourish the body and avoid the disease. But, aerobic and anaerobic also have many differences such as the definition, physiology, types, energy consumption, and benefits. Aerobic and anaerobic have difference of  definition, like The American College of Sports Medicine, known as ACSM, describes aerobic exercise as "any activity that uses large muscle groups, can be maintained continuously, and is rhythmic in nature." Anaerobic activity may target large or small muscle groups and differs from aerobic activity in that it involves short bursts of strenuous exertion, followed by periods of rest. Thus, aerobic activity generally has a low to moderate-intensity and long duration, while anaerobic activity is highly intense and short-lasting. Aerobics and anaerobic also have difference of physiology, like Weber State University exercise physiologist Molly Smith defines three main energy systems that often operate simultaneously during physical exercise. The immediate system uses ATP and creatine phosphate as energy sources at the very beginning of exercise. The short-term, or anaerobic system, involves breaking down carbohydrate energy stores in the relative absence of oxygen. In the long-term, or aerobic system, your body burns fuel sources in the presence of oxygen. Smith remarks that energy becomes more dependent on aerobic metabolism as you reduce your exercise intensity and extend its duration beyond four minutes. The third difference of aerobic and anaerobic are types, like common aerobic activities include running, dancing, bicycling, jogging and brisk walking. These usually last more than 15 minutes. By contrast, anaerobic activities are characterized by short bursts of 10 seconds to one or two minutes. Classic examples of anaerobic exercises include track sprints, weight lifting, power lifting and other resistance training. The fourth difference of aerobic and anaerobic are energy consumption, like in "Nutrition for Sport and Exercise," University of Colorado professor Jacqueline Berning explains that the body uses glucose and carbohydrate reserves as the preferred fuel for all physical exercises. This is because they are easier to mobilize than fats and require less oxygen to break down. However, carbohydrate stores are much smaller than fat stores, and rapidly get depleted. Berning estimates that it takes about 20 minutes of exercise to start burning fat. As the duration of exercise increases, intensity generally decreases, and the contribution of fat as an energy source increases. The last difference of aerobic and anaerobic are the benefits, like the greatest benefits of regular aerobic exercise are probably the improved function and capacity of your heart and lungs, as well as weight loss and improved weight control. Anaerobic training, on the other hand, produces increased lean body mass, improved balance, muscular strength and muscular endurance. Both exercise types can improve blood cholesterol levels, blood pressure and glucose tolerance. According to the text I will choose Aerobic, because aerobic is easier than anaerobic and give many benefits like the greatest benefits of regular aerobic exercise are probably the improved function and capacity of your heart and lungs, as well as weight loss and improved weight control.So, we can do it anytime and anywhere.

2 comments:

  1. your paragraph too long , make the reader feel bored when they read your paragraph . it's better if you can make simpe, completr, and detail paragraph . tx

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  2. Your sentence is too long. But I think your sentences is good, because you have given many evidences to endorse or support your paragraph. Thank you.

    ReplyDelete