The Effect of Exercise on Heart Rate

849 Words2 Pages

The Effect of Exercise on Heart Rate

Introduction

This assignment is intended to determine what the effects of exercise

will have on your heart rate. We are going to do this experiment by

using a data logger to record the results we receive. This can then be

transferred to a computer and results can be made into graphs and

charts. A data logger works by first being connected to a computer.

Then software is used to select start times finish times and when to

take measurements. The logger is then disconnected and attached to the

person. The logger records each measurement and stores it in memory

along with the time. The logger is then reconnected to the computer

and the software is used to retrieve the data and see the measurements

as a graph, and charts. Data loggers are extremely efficient because

they are very small and usually battery powered for ease of use. The

exercise I will use will be a step-up machine, this is because it is

the most accurate way of exercise as it is at the same pace throughout

and can be kept at the same difficulty level.

As the body is exercising the cells need oxygen quicker therefore the

heart has to pump the oxygenated blood around the body quicker than

normal and this makes the heart rate increase.

Most cells in the body need oxygen to function correctly, when we

exercise the cells need more energy and oxygen so that the muscles

which help us to complete the exercise can move by muscle contraction.

The energy which we need for muscle contraction comes from food

molecules inside cells, this is a process which is known as

respiration. The main respiratory substance is glucose and the energy

released is used for the muscle contraction that we need to exercise.

When we do anything are body is releasing energy to help us to fulfil

what we are doing. Even the simplest actions need energy. When we

start to exercise we use aerobic respiration, this takes place in the

Open Document