• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month
Page
1. 1
1
2. 2
2
3. 3
3
4. 4
4
5. 5
5
6. 6
6

# Research Question: Does the duration of exercise have an increased effect on a persons heart rate?

Extracts from this document...

Introduction

Aim: Investigate the effect of a factor on Heart Rate Introduction: People exercise on a daily basis for a variety of reasons. With exercise people often find themselves short of breath and must breathe deeply and more often in order to compensate. Due to the fact that exercise causes someone to breathe more rapidly, it would also seem that it also increases someone's heart rate. In order to gauge the effect of exercise on someone's heart rate, this lab will vary the periods of exercise that one undergoes and heart rate will be recorded afterwards. It would seem that the longer the duration of the exercise, the higher the heart rate will be. Research Question: Does the duration of exercise have an increased effect on a person's heart rate? Independent Variable: The duration of exercise - Exercise will occur for periods of 0 seconds, 45 seconds and 90 seconds after each heart rate will be recorded Dependent Variable: The heart rate of a person in beats per minute - Immediately after exercise students will find their pulse on their neck and count the number of beats they feel in a sixty second time period Control Variable: -Pulse will be found at one's neck each time. This is done to avoid confusion when counting pulse and so that in case pulse recorded varies in other parts of the body such as the wrist such error can at least be consistent. ...read more.

Middle

calculations it became unnecessary to record uncertainty Calculations: Sample Calculation for Average Heart Rate in beats per minute Average Heart Rate in beats per minute = (Subject 1 Trial 1 + Subject 1 Trial 2 + Subject 2 Trial 1 + Subject 2 Trial 2 + Subject 3 Trial 1 + Subject 3 Trial 2 + Subject 4 Trial 1+ Subject 4 Trial 2+ Subject 5 Trial 1 + Subject 5 Trial 2+ Subject 6 Trial 1 + Subject 6 Trial 2+ Subject 7 Trial 1 + Subject 7 Trial 2 + Subject 8 Trial 1 + Subject 8 Trial 2 + Subject 9 Trial 1 + Subject 9 Trial 2 + Subject 10 Trial 1 + Subject 10 Trial 2) Increment One = 0 Seconds Total Number of Trials= 20 Average Heart Rate in beats per minute = (60+74+76+80+78+82+78+84+84+58+70+98+72+96+74+96+66+74+90+96) / (20) Average Heart Rate in beats per minute "increment one of 0 seconds" = 79.30 seconds Average Heart Rate in beats per minute "increment two of 45 seconds" =135.6 seconds Average Heart Rate in beats per minute "increment three of 90 seconds" = 152.2 seconds Round to 4 significant figures in all cases to keep consistent with the bigger heart rates. Sample Calculation for Standard Deviation Input column "Increment One 0 Seconds" into graphing calculator Calc "1-Var Stats" One Standard Deviation = 11.38902981 seconds Round to 4 significant figures because smallest unit of data in the averages is 4 significant figures One Standard Deviation = 11.40 seconds One Standard Deviation "Increment One 0 seconds" ...read more.

Conclusion

While this was not significant enough to discard the duration of exercise as a factor affecting heart rate, it did inhibit the conclusion in terms of how effective duration of exercise is and continually affecting heart rate. Another Weakness is the way in which people recorded their pulse. While everyone recorded their pulse by using their neck some students reported issues with finding their pulse during the seconds following their exercise. This means that after long durations of exercising greater and greater amounts of beats were never recorded impacting the data to the point where increments two and three significantly overlapped in their error bars. In order to improve the lab and reduce the overlap of the error bars exhibiting standard deviation the procedure should be modified with at least two changes. The first improvement would be assigning a lead student who would set the pace of jumping jacks which would ensure that everyone would be exercising at the same rate. Another improvement would be having each student pair up with another student. Half the students could do jumping jacks while half the students watch. Once done jumping jacks, the resting students could record their partner's jumping jacks for them. To do this they would learn how to find their partners pulse beforehand. This would effectively eliminate the beats lost to error in finding one's own heartbeat. Together these improvements would help reduced the overlap that occurs in the error bars of standard deviation by making results more consistent in two ways. The type of exercise is streamlined even more and the method for recording pulse is improved. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Biology section.

## Found what you're looking for?

• Start learning 29% faster today
• 150,000+ documents available
• Just £6.99 a month

Not the one? Search for your essay title...
• Join over 1.2 million students every month
• Accelerate your learning by 29%
• Unlimited access from just £6.99 per month

# Related International Baccalaureate Biology essays

1. ## Neurology and Behaviour. Focus question: Is there an increase in the perception and ...

5 star(s)

1 2 3 4 5 6 7 8 9 10 1 1 1 1 1 1 2 1 3 1 2 2 2 1 1 2 1 2 1 4 1 3 3 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 2

2. ## To investigate how aerobic exercise affects the heart rate

time to account for the delay in reaction to the start and stop of the experiment. So, this treatment of uncertainty will ensure that this factor is taken into account. Qualitative observations Throughout the experiment I have noticed that the test subject became tired quicker as the length of time to perform the physical activity increases.

1. ## In this extended essay I am looking at the effect of different kind of ...

So give support to plants when required. Day 8: The data collected on Day 8: Name of music Played on plant Plant1 (cm) Plant2 (cm) Plant3 (cm) Plant4 (cm) Plant5 (cm) Average height (cm) Classical 19.9 20.9 19.5 20.5 21.8 20.5 Rock 18.0 19.9 21.3 20.2 19.9 19.9 Traffic 20.8 18.6 18.4 20.0 16.6 18.9 No sound

2. ## The effect of toliet cleaning products on E-coli ...

-Vapours may cause drowsiness and dizziness. -Do not breathe gas/ fumes/ vapour/ spray. -Avoid contact with skin. - Wear eye/ face protection. - Use only in well ventilated diameters. - Keep container in a well ventilated place. -To clean the floor and all objects contaminated by this material use water.

1. ## Biology lab What effect does age have on the breathing rate and heart rate ...

1 2 19 22 25 29 6 7 6.5 Boy 3 (13 years) 1 2 43 31 50 39 7 8 7.5 Boy 4 (14 years) 1 2 24 27 31 34 7 7 7 Boy 5 (15 years) 1 2 18 23 36 38 18 15 16.5 Boy 6 (16 years)

2. ## Experiment Plan. What effect does 2 minute of each leg muscle stretch (hamstring, calf ...

There will be a decrease in demand for blood and oxygen from the muscles as there are already in an ?excited? state. Sources: http://www.livestrong.com/article/507222-the-purpose-of-stretching/#ixzz29BxJK2hR http://intensecogitation.info/2010/08/02/the-effect-of-stretching-on-aerobic-exercise-heart-rate-experiment-biology-notes/ http://circ.ahajournals.org/content/93/5/1043.full In this experiment the form of exercise will running on a treadmill. Variables: Independent variable: Stretching hamstring, calf and thigh muscles before the exercise.

1. ## Investigating the Effect of Increasing Exercise in Aerobic Respiration

The chemical equation for the aerobic respiration is shown below: C6H12O6 + 6O2 ï 6H2O + 6CO2 + Energy Glucose + Oxygen ï Water + Carbon Dioxide + Energy The biggest amount of CO2 produced was observed after two minutes of exercise.

2. ## bio lab - The Effect of Temperature (C) on the Rate of Diffusion in ...

When the temperature was 100 C° (±0.001 °C), the boiling water was poured in a 200ml test tube to keep the surface area controlled. 5) An eye dropper was then used to extract the green food colouring. Same brand was used for all trials to keep the concentration of the food colouring the same.

• Over 160,000 pieces
of student written work
• Annotated by
experienced teachers
• Ideas and feedback to