|
|
|
|
|
exercise physiology ecg trace
|
|
|
Introduction: For this assignment I have been asked to describe an ECG trace and identify which areas change during exercise, describe increase in blood pressure, shows what happens to blood flow and draw and label a oxygen disassociation curve. ECGs are used to measure change in electrical patterns of the heart. ECG is short for electrocardiogram. This measures how electrical impulses that make the heart move. This also measures electrical activity and electrical signals in the heart. Above is a picture of an ECG trace. The first little lump is called the P wave. The large wave after that is called the QRS and the last wave is called the T wave. These 3 waves shows movement in the heart. The bigger the wave the more electrical charge is in the heart. The P wave- is the first wave on the trace. This shows the atrial systole. The wave is relatively small because the atria is not very strong. The QRS wave- is also known as QRS complex. This is the largest wave on the trace. This represents the ventricles systole. It also helps hide the P wave. The T wave- is the last small wave in the trace. This is either negative or positive depending on the subject. It decreases as it represents ventricle diastole. (Ventricle Repolaristaion) The diagram above is a normal heartbeat. The trace should look similar to this if not then there are heart problems. This is why ECG traces are good to spot any problems in the heart, which help to help find treatment for it as well. Whenever we exercise the body will be put under stress. When we exercise we need to get more oxygen around to the cells and there fore we breathe quicker and so the heart has to work quicker. When the heart is working harder and quicker the trace would usually be very close together. Blood pressure is always changing in the body. The cardiovascular system is a network all connected of tubes that transport blood from heart to the lungs or tissues.
|
|
|
|
Still Can't Find What Your Looking For? Then Try a Essay Search!
|
