to observe the effects of energy drinks on heart rate and if there is an increase in overall heart rate due to increase consumption. Twenty-three males participated in the study as well as ten males attending GCU. Prior to completing the physical test‚ participants were arbitrarily assigned to receive a placebo or energy drink. In addition‚ a Polar heart rate monitor was attached to the individuals prior to the physical tests and collected the heart rate every minute. There is no sufficient data that
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or different elevations can affect human heart rate. Furthermore‚ the equipment used in the experiment will show the functions in the right and left arm; as well as‚ in the right and left ankles. Finally‚ the lab will serve a purpose as a way to know how to read an electrocardiogram and calculate the heart rate. Introduction An electrocardiogram can be used to record activity during the cardiac process of pumping and returning blood to the body and heart because of the electric current that spreads
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CORE PRACTICAL ONE Describe how the effect of caffeine on heart rate in Daphnia can be investigated practically‚ and discuss whether there are ethical issues in the use of invertebrates. Daphnia‚ the water flea‚ is a small freshwater crustacean which lacks physiological methods of maintaining a constant body temperature. This means that if the environmental temperature changes‚ its body temperature does so too and its metabolic rate will be expected to rise or fall accordingly. So the temperature
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Tachycardia Condition The normality of the heart beats rate is of sixty to one hundred beats a minute at rest. A rate that is faster than 100 beats a minute in adults is called tachycardia. People experience transient heart beats‚ called sinus tachycardia‚ as a normal reaction to some type of excitement‚ anxiety‚ stress‚ or just exercise. There are two other types of tachycardia and those are named supraventricular tachycardia and ventricular tachycardia. The condition of tachycardia is caused
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study of the functions of living organisms. In this physiology practical‚ measurements of 41 students’ weight (kg) using electronic weighing scales‚ height (cm) using height measuring scales‚ skin fold thickness using callipers (mm)‚ heart rate by counting pulse rates were made and then these results were tabulated on an excel sheet. The aim of this practical is to deduce how students’ weights and heights are distributed and observe if they fall within the normal range. Method: “refer to schedule”
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Arrhythmias Arrhythmias are any change from the normal sequence of the electrical impulses in the heart. An arrhythmia is when your heart cannot pump blood effectively. It may happen to fast‚ to slowly‚ or it may happen erratically. When arrhythmias occur; the lungs‚ brain‚ and other organs cannot work properly and they may shut down and be damaged. A normal heart beat is strong‚ muscular pump that is a little larger than a fist and pumps blood continuously through the circulatory system. Arrhythmias
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Evidence Homework #1 Topic: Caffeine Preview: Every morning when I wake up the first thing I do after brushing my teeth is walk straight to the coffee pot. I pour myself a hot rich cup of coffee to start the day off. On my way out the door I grab my go cup and fill it up. When I finally get to school I get myself another cup of coffee. How many miller grams of caffeine do you think I have drank at this point? According to the Mayo Clinic a healthy amount of caffeine for an adult is 200 to 300 miller
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Investigative Quest The purpose of this experiment was to find out how music affects the female human heart rate. Hypothesis My hypothesis is that female resting heart rate will increase as the music tempo increases. If the tempo is slower the heart rate will stay at resting heart rate or decrease. Variables The variables used in this experiment were: • The tempo of the music. • The subject’s heart rate. • The subject’s age. Controls The controls used in this experiment were: • How long the
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Emmanuela Kubari Period 2 IB Biology SL Cinematic Suspense on the Heart Rate Research question: What is the effect of suspenseful movie scenes from Jaw on the Heart Rate Hypothesis: Suspenseful movies tend to trigger emotional release because films tend to transmit ideas through emotions rather than through intellect. It is an interesting thing to consider‚ given the fact that the person is just sitting there watching images. Therefore‚ it is surprising to see the effects that suspense has on the
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What happened to the R-R interval and heart rate after exercise? After exercise the R-R interval increased steadily from 0.48 to 0.68 seconds‚ while the heart rate BPM decreased steadily from 123 to 76; both trending back towards the resting values. What happened to the T-P interval during exercise? Outline what this means for ventricular filling time. During exercise there was a significant drop in the T-P interval which then steadily increased when exercise was completed. The T-P interval represents
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