Hypothesis

For this experiment I think that the hypothesis is that the rates such as blood pressure, respiration etc, will increase as the activity gets harder to do. The reason for this is that as we use our muscles faster and more then we would normally do as we do when we are watching TV or walking around. So as the muscles are moving much faster they need more oxygen and supplements then when if our muscles were to be at rest. So the brain senses that the muscles need more oxygen in order to move faster. So you breathe faster and pump blood much faster so that your muscles can contract and extend more. If you did not have enough oxygen going to your muscle you would get cramps and spasms.