• Explain The Difference Between Exercise And Activity Rate
One of the main physiological changes that occur within the cardiovascular system in response to exercise is heart rate. When engaging in exercise, the amount of energy required increases instantaneously within the skeletal muscles. This sudden demand creates increasing stress on the cardio-respiratory system to remove the waste products and carbon dioxide from the cells and provide more oxygen for the working cells. This surge of extra energy that is needed requires the heart to pump faster and harder in order to increase the volume of blood being pumped there is an increase in beats per minute.
A redistribution of blood can be given out to supply the areas with a higher demand for oxygen and away from the areas of less demand, this is done via the vascular system. In order to do this the heart needs to pump harder to produce a larger …show more content…
This is due to the systolic pressure of the heart reaching high levels. The pressure of the heart during systole can exceed 200mmHg during strenuous exercise compared with the average systolic pressure of 110-140mmHg when resting; this increases dramatically when exercising.[2]
Intense exercise increases the a-v02 and at optimum exertion the blood concentration difference between the arterial and venous can be three times that of the resting level.[3] The volume of blood plasma also decreases with the onset of exercise; this reduction allow the concentration of haemoglobin to increase consequently markedly increasing the bloods capacity to carry oxygen.
When exercising, pulmonary ventilation increases to allow a larger supply of oxygen to reach the working skeletal muscles and remove any metabolic waste products. There is an increase in minute ventilation which occurs because exercise causes an increase in both breathing rate and tidal volume. Tidal volume is the volume of air that is transported during the inspiratory or expiratory phase of the respiratory
A redistribution of blood can be given out to supply the areas with a higher demand for oxygen and away from the areas of less demand, this is done via the vascular system. In order to do this the heart needs to pump harder to produce a larger …show more content…
This is due to the systolic pressure of the heart reaching high levels. The pressure of the heart during systole can exceed 200mmHg during strenuous exercise compared with the average systolic pressure of 110-140mmHg when resting; this increases dramatically when exercising.[2]
Intense exercise increases the a-v02 and at optimum exertion the blood concentration difference between the arterial and venous can be three times that of the resting level.[3] The volume of blood plasma also decreases with the onset of exercise; this reduction allow the concentration of haemoglobin to increase consequently markedly increasing the bloods capacity to carry oxygen.
When exercising, pulmonary ventilation increases to allow a larger supply of oxygen to reach the working skeletal muscles and remove any metabolic waste products. There is an increase in minute ventilation which occurs because exercise causes an increase in both breathing rate and tidal volume. Tidal volume is the volume of air that is transported during the inspiratory or expiratory phase of the respiratory