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What are Cardiovascular systems response to steady state exercise?
Wiki User
∙ 14y ago
Cardiovascular
Upon steady state exercise the cardiovascular system will react in several ways,
Heart Rate: Typically during exercise heart rate will increase. This is in order to increase blood flow to the working muscles to allow for increased respiration - in order for the muscles to work efficiently. Prior to exercise the regular resting heart rate is around 60 - 80bpm but when you exercise the heart rate will go up from that because it's an initial response to the exercise. After a few minutes the heart rate will stop rising and stay constant. This is because the athlete has been jogging for example, continuously and isn't psychically exerting himself. This is known as steady-state heart rate where the demands of the active tissues can be adequately met by the cardiovascular system. However, there is an exception to this
During prolonged steady-state exercise, particularly in a hot climate, a steady-state heart rate will gradually increase. This phenomenon is known as cardiac drift and is thought to occur due to increasing body temperature
Cardiac output: Cardiac output is the amount of blood pumped by the heart in 1 minute measured in L/min. It is a product of stroke volume and heart rate (SV x HR). If either hearts rate or stroke volume increase, or both, cardiac output increases also. Cardiac output increases proportionally with exercise intensity. With steady state exercise changes in either heart rate or stroke volume will have an impact on the other component. The Heart rate and the stroke volume stops rising and becomes constant and Cardiac output does the same
Blood Flow: As you exercise, the blood vessels in your muscles dilate and the blood flow is greater, just as more water flows through a fire hose than through a garden hose. Your body has an interesting way of making those vessels expand. As ATP gets used up in working muscle, the muscle produces several metabolic by products (such as adenosine, hydrogen ions and carbon dioxide). These by products leave the muscle cells and cause the capillaries (small, thin-walled blood vessels) within the muscle to expand or dilate (vasodilatation). The increased blood flow delivers more oxygenated blood to the working muscle.
Blood that would have gone to the stomach or the kidneys goes instead to the muscles, and the way that happens shows how the body's processes can sometimes override one another. As your muscles begin to work, the sympathetic nervous system, a part of the automatic or autonomic nervous system (that is, the brainstem and spinal cord) stimulates the nerves to the heart and blood vessels. This nervous stimulation causes those blood vessels (arteries and veins) to contract or constrict (vasoconstriction). This vasoconstriction reduces blood flow to tissues. Your muscles also get the command for vasoconstriction, but the metabolic by products produced within the muscle override this command and cause vasodilatation,
Stroke volume: Stroke volume is the amount of blood ejected per beat from left ventricle and measured in ml/beat. Stroke volume to its highest during sub maximal exercise and doesn't increase during maximal exercise. The greatest increase of stroke volume increases in the transition from rest to moderate exercise, during maximal exercise stroke volume doesn't go over its peak of 120 - 140 per minute Starling's law states that the stroke volume is limited towards the venous return, of which is the amount of the blood that is available to enter the left atrium and pass to the left ventricle
By Tom Clarke
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoThe neuromuscular system gets fatigued and the energy is lost
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What is steady exercise in which the heart can supply all the oxygen the muscles need?
Aerobic exercise
What is a steady heart rate during exercise?
89
How does cardiovascular exercise help you?
When you engage in physical activity the cardiovascular system is affected immensely. The pumping muscles within your heart, the muscles of your skeletal structure, your blood vessels and red blood cells all grow in size or number when you perform regular exercise. It is through this steady changing process that your body will begin to transport more blood, oxygen and nutrients and also increase its ability to remove waste from it. Keeping your cardiovascular system healthy through exercise will assist in preventing serious health conditions such as heart attack and stroke.
What are the three S's for isotonic exercise?
slow, smooth, and steady
What did irrigated systems and plows provide to ancient sumerians?
The systems and plows provided a steady food supply.
Should heart rate increase during steady exercise?
I believe so.
What produces the most steady rate of response?
A continuous reinforcement schedule typically produces the most steady rate of response, as the reinforcement is delivered every time the desired behavior occurs. This leads to a consistent and predictable pattern of behavior.
What is an exercise that is steady and sustained and at which the heart can supply the oxygen needed the body?
Physical fitness
Is homeostasis and human biology relevant?
Yes it is Homeostasis involves the bodys systems combating a stimulus the body returns the systems to its optium state and creaetes a steady state it does this by using the feedabck system Yes it is Homeostasis involves the bodys systems combating a stimulus the body returns the systems to its optium state and creaetes a steady state it does this by using the feedabck system Yes it is Homeostasis involves the bodys systems combating a stimulus the body returns the systems to its optium state and creaetes a steady state it does this by using the feedabck system
How is golf healthy?
Simply by being steady physical exercise - mental too, injudging the strokes.
What is a statement that explains how the cardiovascular system helps the body maintain a steady temp in cold weather?
A. the heart muscle contracts pumping more blood to the extremities.
How do the cardiovascular and respiratory systems respond to steady state exercise?
They enter a stage of homeostasis, where the chemical reactions become equal enough to balance. I.e. suffiecent amounts of phosphuros to replenish the ADP chain to ATP and resythnesis the chemical compound to once again release energy. Upon steady state the cardiovascular system will react in several ways, mainly the cardiac out put will change. The reason for this is due to the increased demand for o2 for the muscles, requiring faster heart contractions and increased stroke volume, to transport more blood at a faster pace. Whilst the blood pressure is increased due to the increased amount of blood and the speed, of which this can be controlled via vasodilatation and vasoconstriction. Venous return is also increased due to the increased heart rate, however with the constant contractions through muscles (this may increase the venous return). Starling's law states that the stroke volume is limited towards the venous return, of which is the amount of the blood that is available to enter the left atrium and pass to the left ventricle However all these factors should essentially stay the same if the environment and intensities do not vary, as well as keeping a constant hydration level. The respiratory systems is affected in several ways; Upon steady state the tidal volume begins to balance out as the body becomes adapted towards the level of exercise, this is also the same as the breathing rate. However the PH of the gases which are exhaled may be altered depending on the level of intensity, they will become neutralised within steady state as there is sufficient amounts of o2 to balance the PH levels, consequently due to the exercise intensity the body's temperature will increase causing the temperature to increase. With relation to the oxygen dissociation curve this suggests that as the phosphate increases, the level of temperature and PH level will increase together towards the right side of the curve, whereas if the levels decrease they will move towards the left side.
