Aims The major aims and objectives of the report included the following:  1. To take measurements of actual rates of the heart when it is at the state of resting. The value obtained was divided by the response within a minimum interval of 30 seconds.  2. To measure and determine blood pressure by making use of a sphygmomanometer. This activity was carried out five minutes before and after some mild body exercise.  3. To evaluate the wave of the heart in terms of contraction and relaxation movements using electrocardiogram (ECG) through electrodes that were attached to the human body. Results of the experiment This section illustrates the results that were obtained from each aim stated above. The first objective in experiment one Dividing response on the value obtained from the heart rate From the first experiment that was carried out in the laboratory, it is evident that there is a clear difference between heart rate when it is at rest and when engaged in some form of activity. From table one below, the heart rate when resting was found to be 81bpm. However, the mean speed at which the heart contracted when it was engaged in a diving exercise was 45bpm. Table One : Average heart rate during resting and after a diving response Resting  Diving 81bpm    45bpm   The second objective in experiment two How systolic and diastolic pressures are affected by moderate exercise According to the figures presented in the second table, the blood pressure recorded when the heart was at rest was 123/75mmHg. Nonetheless, the figure obtained after exercise was higher. The mean systolic pressure of the blood was recorded at 147mmHg after the exercise. On the other hand, the diastolic blood pressure was not significantly affected by the short exercise activity. During rest, the blood pressure was 123/75 mmHg as presented in table 2. In comparison, the average systolic blood pressure after exercising raised dramatically to 147mmHg, while the diastolic blood pressure remained almost constant as seen in the table below. Table Two Blood Pressure (BP)  Blood Pressure (BP)    During Rest          After a short Exercise Systolic             Diastolic               Systolic  Diastolic 123 mmHg             75 mmHg                 147 mmHg  74mmHg     The above-average results for the blood pressure of participants (students) were taken within an interval of five minutes. The third objective in experiment three The use of an Electrocardiogram (ECG) with electrodes attached to the human body In the third experiment, it is imperative to note that there are three different types of waves as illustrated in the diagram below. These are the T wave, the complex QRS wave as well as the P wave. From the diagram, it is clear that the P wave is the smallest type of wave with the minimum peak. It is then followed by the complex QRS wave with the highest peak. Finally, the T wave completes the wave train. Although the last wave is relatively smaller in size than the complex QRS wave, it is higher in peak than the P wave. From the figure below, the following calculations can be made:  1. The time take between two successive R waves (namely PR) is 15.5 – 14.8 = 0.7 seconds  2. In terms of the Heart Rate (HR) and also in relation to the time taken between two successive R waves, the Heart Rate (HR) can be calculated as follows: Heart Rate (HR) = 60 S