Ace Your Exercise and Nutrition Science Project by Robert Gardner

By Robert Gardner

How does antibacterial cleaning soap have an effect on micro organism? What nutrition meets your power requisites? how will you degree blood strain, metabolic price, and energy? younger scientists know about the clinical technique whereas experimenting with hygiene and well-being. Many experiments during this booklet comprise principles you should use for technology reasonable initiatives.

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Sample text

Cover the mouth of the container with a glass or plastic plate. Next turn the container upside down and place its neck under the water in a dish pan that rests in a kitchen sink (see Figure 8). Insert a short length of glass or rigid plastic tubing into a 30-cm (12-in) length of rubber tubing. Use a piece of cotton gauze to wipe the end of the glass or plastic tube with rubbing alcohol. This tube will serve as a mouth piece. Once the alcohol has evaporated, have a partner support the water-filled container while you place the end of the rubber tubing up through the submerged mouth of the container.

Determine the person’s blood pressure with whichever instrument is available. What is the systolic blood pressure? What is the diastolic blood pressure? What is the pulse pressure? Now, reverse roles. What is your blood pressure? What is your pulse pressure? FIGURE 3: These devices are used to measure blood pressure. a) An automatic cuff-type blood pressure and pulse monitor. A similar model fits over the upper arm. b) A finger-type automatic blood pressure and pulse monitor. c) A sphygmomanometer, such as those commonly found in a doctor’s office.

Pulse pressure is the difference between systolic and diastolic blood pressure. In the example given above, the pulse pressure would be 120 – 70 = 50 mm of mercury The easiest way to measure blood pressure is with a battery-operated monitor that fits over a person’s index finger, wrist, or upper arm. It provides a digital display of both systolic and diastolic pressure. Still another battery-powered blood pressure monitor inflates at the press of a button and gives a digital display of blood pressure and pulse rate.

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