PRACTICAL BS0005: PHYSIOLOGY
MEASURING BODY PARAMETER
The aim of the practical was to take simple measurements of body parameters and to assess if the collected results are within the normal range. Introduction
In this practical we have gathered results of 41 students measurements from their weight (Kg), height (cm), percentage (%) body fat by using callipers (mm), blood pressure and their heart rate pulse of the right arm (b/min) using our index, middle and ring finger pressed on the wrist near the thumb and counting. The collected results from each group was then recorded and put on to excel sheet. Method
In this practical, we were divided to groups of three to four students. Size- Each student had to remove their shoes, in order to measure their weight using a weighing scale (Kg) and measure their height as well without shoes, using a stadiometer (cm). We then had to convert centimetres to metres by dividing cm by 100. We than compare our results for our weight on the reference weight table, which tells you what average weight is suitable for your height and age.
BMI- We than had to estimate our body mass index (BMI) which is the amount of body fat content that is equivalent to your height and weight. BMI is used to indicate whether you are overweight, obese, underweight or normal due to your height. We used a calculation find our body mass index is BMI= weight/height2. Nevertheless, this method isn’t always accurate it could sometimes mistaken fatness to muscle in athletes. To measure our BMI we used an equipment called skin callipers and we had to measure four parts of our body which are, biceps (front of upper arm), triceps (back of upper arm), suprailliac (slightly below and across the abdominal) and subscapular (below the shoulder blade). We used measured only the right side of the body as instructed, while our fellow classmate is standing up and we hold on a fold of the skin at the given regions between our thumb and middle finger of our left hand. While holding the calliper in our right hand and measure the thickness in mm, and this must be done 3 times to get a more accurate result and then find the average. We then add the skin fold and used the nomogram, in order to find the body fat percentage (%). This test gives a good estimate on amount of body fat, because approx. 50% is subcutaneous using skin callipers (Harpenden).
Heart rate- We then checked each other’s heart rate by using a stopwatch. We used the right arm, because we started out that way and avoid confusion. We used the index finger, middle finger and ring finger against the pulse on the wrist below the thumb. We counted the amount of times the blood flowed through the pulse every 15 seconds and then multiple by 4 and the beats/min and repeated 3 times and then calculated the average by add all the results together and dividing by 3. We recorded the results afterwards.
Blood pressure- the blood pressure is the pressure that is forced from the right ventricle to the atrium and pushed to the through the arteries. When measuring blood pressure we used this equipment that is called automatic sphygmomanometers. The blood pressure has two parts called systolic (heart contract) and diastolic (heart relaxed) pressures. The average measurement for the systolic is between 100 to 140 mmHg and the diastolic is usually around 60 to 85 mmHg. The person having their blood pressure checked must be seated and relaxed and the equipment wrapped on the cuff the arm and the green band is above the elbow on the left arm, in order for the wire to be pointing downwards for the measurement to be accurate. Than we push the start button and record the systolic and diastolic pressure and after 1 minute we must repeat this procedure. Then take the average of the 2 systolic and diastolic results and put the average on to the excel sheet.
Results and Discussion
Body Fat (%)
Pulse Rate (b/min)...
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