The evidence suggests that regular aerobic exercise can reduce the development of certain cancers is strong. This time is even stronger evidence suggesting regular aerobic exercise can have a profound impact on cardiovascular health. With regular aerobic exercise increases the efficiency of the heart, which produce many beneficial effects on the body. Improved efficiency of the heart can also lead to a reduced risk of developing heart disease.
Improving the efficiency of the heart
The efficiency of the heart and cardiovascular health can be determined by several different methods. One method is to measure the resting heart rate of an individual. A lower heart rate at rest after a period of training of aerobic exercise shows increased efficiency of the heart. The stroke volume (amount of blood ejected by the heart with each beat) is increased, which essentially means that the heart muscle does not pump as many times to get enough blood to the body. With practice of aerobic exercise, the heart muscle is strengthened and not have to work hard as he did before the practice of aerobic exercise.
For example, at rest, an untrained person can have a rate of 70 beats per minute (LPM) and a volume of 71 ml / heartbeat race. Which corresponds to a cardiac output of 5000 ml / min. On the other hand, aerobic trained individual with the same cardiac output will be a resting heart rate of 50 beats per minute and a volume of 100 ml / beat race. [1] The qualified person is able to get enough blood to your body with fewer beats the uninformed individual. This only shows an adaptation of the body through the practice of regular aerobic exercise.
Other adaptations that accompany the practice of regular aerobic exercise include increased blood volume, increased blood flow to the muscle work, and an increase in the size and mitochondrial density. This increase in mitochondrial density is important for the use of fat as fuel during submaximal aerobic exercise. When a fat molecule must be vented for use as a fuel, which is decomposed into a fatty acid and a glycerol molecule. The fatty acid is carried by the blood to the mitochondria where it is processed to be used as fuel. With an increase in the number of mitochondria in muscle cells, and the body may be treated using fatty acids as a fuel. This preserves the potential energy stored as carbohydrates to other uses. [2] In other words, the body can better use fat during aerobic exercise and save the most valuable carbohydrate fuel.
Aerobic exercise and heart disease
Regular aerobic exercise can also reduce the lifetime risk of heart disease developing person. A study conducted at Stanford University found that the best predictor of death is the lack of fitness. [3] Another study also found that "physical inactivity is a major risk factor for cardiovascular disease." [4] How a person is fit plays a role in determining the life of that person may have. This improved fitness can be achieved through regular aerobic exercise.
Another way that regular aerobic exercise can reduce the development of heart disease is by increasing the number of capillaries in the body. When a person is formed aerobic, more capillaries developed to improve the exchange of oxygen and carbon between the blood and the cells dioxide. If an artery is damaged or if the blood flow is blocked, blood can be easily diverted to where it should go and deliver oxygen. This increase in the number of capillaries occurs not only in the heart, but also in the brain and all other parts of the body, which also reduces the risk of stroke. [5]
Studies have also shown that regular aerobic exercise may be able to reverse the effects of heart disease because they occur in an individual. Of all the risk factors associated with heart disease, many of them can be modified by regular exercise and weight control. Heart disease risk factors can be reduced or eliminated in an individual by regular aerobic exercise include hypertension, blood fat, type 2 diabetes, obesity and physical inactivity. Through regular exercise, these conditions can be improved, and accordingly, heart disease can be prevented and in some cases reversed. [6]
[1] William D. McArdle, Frank I. Katch and Victor L. Katch, Exercise Physiology: Energy, Nutrition, and Human Performance, 6th ed (Baltimore: Lippincott Williams and Wilkins, 2007): 354.
[2] Ibid., 478-80.
[3] Steven G. Aldana, The Culprit and the Cure: Why Lifestyle is the Culprit Behind America's Poor Health and How Transforming That Lifestyle Can be the Cure (Mapleton, UT: Maple Mountain Press, 2005), 142.
[4] James B. Carter, Eric W. Banister and Andrew P. Blaber, "Effect of Endurance Exercise on Autonomic Control of Heart Rate," Sports Medicine 33 (2003): 42.
[5] Aldana, 143.
[6] Philip E. Allsen, Joyce M. Harrison and Barbara Vance, Fitness for Life: An Individualized Approach, 6th ed (Boston: WCB/McGraw Hill, 1997) 49.
Improving the efficiency of the heart
The efficiency of the heart and cardiovascular health can be determined by several different methods. One method is to measure the resting heart rate of an individual. A lower heart rate at rest after a period of training of aerobic exercise shows increased efficiency of the heart. The stroke volume (amount of blood ejected by the heart with each beat) is increased, which essentially means that the heart muscle does not pump as many times to get enough blood to the body. With practice of aerobic exercise, the heart muscle is strengthened and not have to work hard as he did before the practice of aerobic exercise.
For example, at rest, an untrained person can have a rate of 70 beats per minute (LPM) and a volume of 71 ml / heartbeat race. Which corresponds to a cardiac output of 5000 ml / min. On the other hand, aerobic trained individual with the same cardiac output will be a resting heart rate of 50 beats per minute and a volume of 100 ml / beat race. [1] The qualified person is able to get enough blood to your body with fewer beats the uninformed individual. This only shows an adaptation of the body through the practice of regular aerobic exercise.
Other adaptations that accompany the practice of regular aerobic exercise include increased blood volume, increased blood flow to the muscle work, and an increase in the size and mitochondrial density. This increase in mitochondrial density is important for the use of fat as fuel during submaximal aerobic exercise. When a fat molecule must be vented for use as a fuel, which is decomposed into a fatty acid and a glycerol molecule. The fatty acid is carried by the blood to the mitochondria where it is processed to be used as fuel. With an increase in the number of mitochondria in muscle cells, and the body may be treated using fatty acids as a fuel. This preserves the potential energy stored as carbohydrates to other uses. [2] In other words, the body can better use fat during aerobic exercise and save the most valuable carbohydrate fuel.
Aerobic exercise and heart disease
Regular aerobic exercise can also reduce the lifetime risk of heart disease developing person. A study conducted at Stanford University found that the best predictor of death is the lack of fitness. [3] Another study also found that "physical inactivity is a major risk factor for cardiovascular disease." [4] How a person is fit plays a role in determining the life of that person may have. This improved fitness can be achieved through regular aerobic exercise.
Another way that regular aerobic exercise can reduce the development of heart disease is by increasing the number of capillaries in the body. When a person is formed aerobic, more capillaries developed to improve the exchange of oxygen and carbon between the blood and the cells dioxide. If an artery is damaged or if the blood flow is blocked, blood can be easily diverted to where it should go and deliver oxygen. This increase in the number of capillaries occurs not only in the heart, but also in the brain and all other parts of the body, which also reduces the risk of stroke. [5]
Studies have also shown that regular aerobic exercise may be able to reverse the effects of heart disease because they occur in an individual. Of all the risk factors associated with heart disease, many of them can be modified by regular exercise and weight control. Heart disease risk factors can be reduced or eliminated in an individual by regular aerobic exercise include hypertension, blood fat, type 2 diabetes, obesity and physical inactivity. Through regular exercise, these conditions can be improved, and accordingly, heart disease can be prevented and in some cases reversed. [6]
[1] William D. McArdle, Frank I. Katch and Victor L. Katch, Exercise Physiology: Energy, Nutrition, and Human Performance, 6th ed (Baltimore: Lippincott Williams and Wilkins, 2007): 354.
[2] Ibid., 478-80.
[3] Steven G. Aldana, The Culprit and the Cure: Why Lifestyle is the Culprit Behind America's Poor Health and How Transforming That Lifestyle Can be the Cure (Mapleton, UT: Maple Mountain Press, 2005), 142.
[4] James B. Carter, Eric W. Banister and Andrew P. Blaber, "Effect of Endurance Exercise on Autonomic Control of Heart Rate," Sports Medicine 33 (2003): 42.
[5] Aldana, 143.
[6] Philip E. Allsen, Joyce M. Harrison and Barbara Vance, Fitness for Life: An Individualized Approach, 6th ed (Boston: WCB/McGraw Hill, 1997) 49.
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