XXXIII Copernicus High School
Warsaw
April 20, 2009
Sabina Narloch
THE INFLUENCE OF DEFINED FACTOR ON THE PULSE RATE
RESEARCH QUESTION
Does heart rate differ significantly in accordance to genetics, gender, age, surrounding us environment, and lifestyle?
Does heart rate may also be influenced by factors with which we do not face in everyday life as overwhelming, strong emotions?
VARIABLES
MATERIALS AND EQUIPMENT
- Stopwatch (±0.01 s)
- Barometer
- Hygrometer (± g/m3)
- Thermometer (range: 0 oC-100 oC, ± 0.5 oC)
- A large area to carry out the experiment
- Stethoscope (if heart rate would not be measure placing fingers)
- Stairs
- People of both sexes, in different age , with and without smoking status, with and without alcohol addiction, with normal and overactive thyroid gland, with good/poor physical condition, with low/normal/high blood pressure, with diversity in height, and also with diverse Body Mass Index
- Liquids: alcohol, coffee, tea, water
- 20 mugs with 1 liter of capacity ...
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MATERIALS AND EQUIPMENT
- Stopwatch (±0.01 s)
- Barometer
- Hygrometer (± g/m3)
- Thermometer (range: 0 oC-100 oC, ± 0.5 oC)
- A large area to carry out the experiment
- Stethoscope (if heart rate would not be measure placing fingers)
- Stairs
- People of both sexes, in different age , with and without smoking status, with and without alcohol addiction, with normal and overactive thyroid gland, with good/poor physical condition, with low/normal/high blood pressure, with diversity in height, and also with diverse Body Mass Index
- Liquids: alcohol, coffee, tea, water
- 20 mugs with 1 liter of capacity
- Graduated flask (needed to measuring out liquids’ volumes; ±0.01 l)
- Chair
- Sofa
PROCEDURE
- All equipment mentioned in Materials was prepared.
- Six groups (each group consisted of seven persons) of people were created considering sex, difference in age , smoking status, alcohol addiction, normal/overactive thyroid gland, good/poor physical condition, low/normal/high blood pressure, person’s height and also diversity in Body Mass Index.
- Heart rate of each person of each group was counted three times for fifteen seconds by placing stethoscope on the carotid artery on the neck and then that number was multiplied by four.
- The heart beat rate was given.
- Seventh group of people (that consisted of ten average, healthy persons) was created considering types of exercising and wearing different textile materials. Used exercises: Toe Raises, Jumping Jacks, Squats, Push-ups, and Running Upstairs.
- Each exercise lasted 10 minutes (time was measured with stopwatch; ±0.01s)
- Seventh group members were divided into two smaller groups, first group members were wearing summer clothing, second: winter clothing.
- Exercises were carried five times, with breaks between them, to reach theirs resting pulse.
- Heart rate of each person was counted (see point “3”) before and after the exercises.
- Eighth group of people (that consisted of twenty average, healthy persons) were created.
- Group members were divided into four smaller groups: one controlled that drank water (0.75 l; ±0.01 l), three other group’s members drank alcohol (until person got intoxicated insignificantly), coffee (0.75 l; ±l), and tea (0.75 l; ±0.01 l).
- Heart rate of each person was counted (see point “3”) before and after experiment.
- Ninth group of people (that consisted of ten persons) was created considering lack of sleep (five people) and emotional states (five people).
- Heart rate was counted (see point “3”) before and after long-lasting lack of sleep/felt strong emotions.
- Tenth, the last group that consisted of fifteen people was created.
- Group’s members were divided into three smaller groups (five people in each) considering influence of body position (lying/sitting/standing).
- Heart rate was counted (see point “3”) after 30 minutes in such position.
- All experiments were carried in identical conditions, controlled variables were maintained (time was measured by stopwatch, ± 0.01s; atmospheric pressure was measured by barometer: ± ; heat by thermometer, ± 0.5 oC, humidity by hygrometer: ± g/m3).
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