How Does Exercise Effect The Body?

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Amandeep Gill                                                GCSE Coursework

How Does Exercise Effect The Body?

Aim :  My aim is to find out how exercise effects the body, particularly looking how your heart rate changes from a stationary position to the after effects of the activity of my choice. The exercises I have chosen to carryout are sprinting, jogging, walking and performing star jumps.

Word Equation Formula for Respiration,

Glucose + Oxygen                  Carbon Dioxide + Water + Energy

Symbol Equation Formula for Respiration,

C6 H12 O6  +  6O2                        6CO2   +  6H20  + Energy

I will be using the formula for respiration in the latter stages of my experiment and showing how it is related to exercise?

Equipment Used,

The following is a list of the equipment I will be using for my practical experiment:

Stop Clock – Used to time various stages of the experiment, e.g. 30 seconds for stationary pulse.

Tape Measurer – Used to measure the twenty- five metre strip used in the majority of the exercises.

Pen and Paper – Used to record the results whilst the activities are taking place.

Pair of Trainers – Used instead of school shoes, as they can often be painful when running in and this could effect the pace in which the experiment is carried out at.

Towel – Used after the practical experiment has taken place.

Diagrams of the Equipment,


Prediction,

From previous scientific knowledge, I predict that when doing exercise, the body’s temperature, breathing rate and the heart rate will all increase. I predict this because when muscles are in use, they will produce heat. It is this heat that affects the body’s temperature. The body will also try to keep the original heat and will sweat to cool the body down. Muscles need oxygen to work properly. They also need glucose. The formula for respiration tells us that glucose and oxygen are taken in and energy and carbon dioxide are given out. The muscles will need more oxygen and glucose as they work harder; therefore the breathing rate should rise to allow a bigger intake of the two. For this now larger intake the heart must pump this oxygen and glucose, situated in the blood, to the muscle cells more rapidly. This means that the heart rate will increase. The fitter the body is the slower the heart rate and breathing rate will increase. A look at the cardiovascular system shows us where the blood travels to and from.

Method,

  1. Gather all Equipment.

  1. Measure and mark out twenty- five metres for the activities.

  1. Decide what role each member of the group partakes in, e.g. who actually participates in the exercise activities?

  1. Measure how many times your heart beats in thirty seconds. This is to find your stationary heart rate.
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  1. I will repeat this process three times and work out an accurate average.

  1. Once this has been completed, I will decide to record the results after two minutes for each activity.

  1. Between each activity I will decide to wait for a period of eight minutes as I felt this was sufficient time for my heart rate to return to its stationary rate.

  1. I will record each result in a table format.

  1. I will repeat the stages : 7 and 8, on three consecutive days

  1. I will do this ...

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