Could Exercise Really Play a Role in Your Health? Blood Pressure Could Exercise Really Play a Role in Your Health? Blood Pressure Introduction Blood pressure (BP) is defined “as the pressure the blood exerts against any unit area of the blood vessel walls, and it is generally measured in the arteries. Because the heart alternately contracts and relaxes, the resulting rhythmic flow of blood into the arteries causes the blood pressure to rise and fall during each beat. Thus you must take two blood pressure readings: the systolic pressure, which is the pressure in the arteries at the peak of ventricular ejection, and the diastolic pressure, which reflects the pressure during ventricular relaxation.
Explain what caused the observed changes in systolic BP and MAP with the exercise. The average systolic BP post exercise is 148 mmHg and the MAP post exercise is 104 mmHg. Differences between the two is a result of the exercise increasing blood flow to skin, heart, and skeletal muscles but reducing flow to other organs such as urinary, reproductive, and digestive organs. 2. Compare the resting and exercising systemic vascular resistance values and discuss what causes the observed change with exercise.
1. Cardiovascular System is a complex network of the heart, blood vessels and blood. Its job is to deliver nutrients to the human body and remove excretory products from the body parts, it’s also protects the human body against infections, distribution of heat. At the centre of the cardiovascular system is the heart, a four chambered pump that dispenses blood to the arteries. The arteries carry nutrients and oxygenated blood to the body’s tissues.
It starts with oxygen poor blood being pumped from the right ventricle into the pulmonary trunk. The pulmonary trunk divides into right and left pulmonary arteries that subdivide into the lobar arteries in the lungs. The lobar arteries accompany the main bronchi into the lungs and then branches forming arterioles and then pulmonary capillaries that cling to alveoli. Here oxygen moves from the air sacs to the blood, and carbon dioxide from the blood moves to the air sacs. Next, the pulmonary capillary beds drain into venules which join to form two pulmonary veins exiting each lung.
LDH-1 level higher than that of LDH-2 is indicative of a heart attack or injury. One of the most important diagnosis uses for the LDH isoenzymes test is in the different diagnosis of myocardial Infarction or heart attack. The total LDH level rises within 24-48 hours after a heart attack. Peaks in two to three days and returns to normal in approximately five to ten days. An LHD-1 level a phenomenon known as ‘flipped LDH’, Is strongly indicative of a Heart attack.
D1 The cardiovascular and respiratory system interlink with each other, this is because they both have a link when it comes to gases exchange. This is because inside the lungs there are air sacs they are called the alveoli there are millions of alveoli, around each alveoli are capillaries which are small blood vessels, as the walls of this is thin carbon dioxide goes into the alveoli from the capillaries and the oxygen goes back into the capillaries which then goes into heart, and the heart pumps blood all around the body. These systems work very closely together, this is to make sure that organ tissues get enough oxygen. Oxygen is needed for cellular function. The air which we breathe in which is kept in the lungs, is the transferred into blood.
Cardiovascular Function Introduction: Cardiovascular function involves the distribution of oxygen and blood to cells of organs, tissues and muscles in the human body, and returns deoxygenated blood and wastes for disposal. It maintains body temperature and pH. An average adult contains 4.7 to 5.7 litres of blood. ‘A person’s pulse is the throbbing of their arteries as an affect of the heart beat’. Pressure waves travel throughout the blood vessels, which can be felt by the further movement of the blood.
For every ATP that is broken down, it moves 3 sodium ions out and then 2 potassium ions in. This is an example of how energy is used within our bodies. Metabolic processes require energy such as the heart beating, the brain, liver and kidneys. Chemical energy from oxygen and food are converted into useable chemical energy and is converted into heat and work. (401
The 5 immediate physiological responses to exercise The five immediate physiological responses to exercise are heart rate (HR), Stroke Volume (SV), Cardiac Output (CO), ventilation and lactate levels. These five physiological responses change during different levels of exercise and are different pre and during exercise. The responses also vary for trained and untrained athletes. Heart rate can be defined as the number of times the heart beats per minute. There are three different values of heart rates; resting HR (at a steady state/pre exercise), Working HR (working at 65%- 75%, during exercise) and max HR which is the maximum your heart should pump at for extended periods of time and is calculated by 220 minus your age.
There are many things that effect physical health within your body; the cardiovascular system which is all about heart strength, cholesterol and blood pressure; the respiratory system, how fitness effects your breathing and the oxygen getting to your muscles and organs; skeletal system and how fitness effects your bones, the strength of them and the condition of the bones; Weight control which effects most of the above factors and a main benefit of being healthy as weight can have a massive effect negatively or positively on your overall health. Effects on the cardiovascular system The cardiovascular system or otherwise known as the circulatory system