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# Design Lab - experiment to discover whether or not listening to house music affects ones heart rate.

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Introduction

Alexandra Piedrahita IB Biology I April 30th 2009 Heart Rate Lab Period 5 ASM Design DC/DP CE MS PS | | | | | | | | | | c=fully p=partially n=not at all Purpose: To discover whether or not listening to house music affects one's heart rate. Heart rate is a measure of your pulse and your pulse is caused by the contractions of the left ventrical of the heart, and the series of pressure waves it causes on the walls of artery's. Your pulse is how many beats your heart makes per minute and is measured in bpm's (beats per minute). Heart rate varies significantly per person, according to their weight, age, fitness, and even genetics. A person's heart rate is also affected by many factors in their environment (such as temperature) and the activity which that person is doing. ...read more.

Middle

Just like in Pavlov's experiment with the dog's who began drooling, our body would probably start increasing the heart rate to adjust to what it think's would be coming. Variables: Variables Control of Variables Independent The House music It's presence and absence Dependant Heart rate I will measure the heart rate using a stopwatch to time 1 minute and by counting how many pulsations their heart makes in that amount of time. Control BMI 23 Age The age of the girls I will be testing is between 16 and 17 years old gender female Temperature at which the test is done 32�C (room temperature) Song (of the genre of house music) which is played to the person being tested The song will be "Dota" by Basshunter Duration of time that song will be played The full length of the song which is 3:22 minutes Materials: * Ipod with the song "Dota" by Basshunter * Headphones * stopwatch * Thermometer * Subjects ...read more.

Conclusion

using a stopwatch to measure one minute exactly. * Have Subject B listen to the entire song of "Dota" by Basshunter, and immediately after measure their heart rate (beats per minute) using the stopwatch to measure one minute exactly. * Record the heart rate in the data table * Measure the temperature of the same location again to ensure that the room temperature has stayed the same * Have Subject C sit down for 3 minutes without doing anything, reading anything, or listening to music, and then measure their heart rate (how many beats per minute) using a stopwatch to measure one minute exactly. * Have subject C listen to the entire song of "Dota" by Basshunter, and immediately after measure their heart rate (beats per minute) using the stopwatch to measure one minute exactly. * Record the heart rate in the data table DATA TABLE: Subject Heart rate prior to listening to the song Heart rate post listening to the song A B C ...read more.

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