How does equilibrium effect heart rate?

For our cardiovascular function lab some classmates and I decided to explore how heart rate and blood pressure are effected by a person's equilibrium.  Would they have a different blood pressure if they were dizzy?  If they were upside down?  Would a girl's blood pressure be different from a guy's?  We set out to study and test this problem.

Hypothesis: Changing the equilibrium of a person will change their blood pressure accordingly as the body will work to adjust to the new position.

Procedure:
We strapped a blood pressure monitor on the wrist of our first subject.  We had the subject sit still for 3 minutes so we could use those readings as the normal state because they would be upright and at rest, meaning there were no other factors to interfere with the results.
Next, we had them stand with their eyes closed for three minutes.  Standing with your eyes closed usually messes with your equilibrium.
After five minutes of sitting, the subject laid down on their side.  As the body is not usually on it's side we believed that the posture would also effect equilibrium.
Another five minutes of sitting and the subject hung upside down.  This was a little hard to accomplish in a classroom environment but we made it work by having the subject hang over the edge of their desk. I should have taken pictures, it was hilarious.
The last test was spinning.  We had the subject sit cross legged on a spinning office chair and I spun them around for 3 minutes.  It's a lot more effort to spin someone than I at first imagined.
We repeated this with the other three test subjects.
Graphs

The girls' systolic pressures stayed pretty close to each other.  As expected, systolic pressure varied from the normal pressure with their position and equilibrium.

The diastolic pressure of their bodies varied in much the same way as their systolic pressures.  As you can see, the diastolic pressure goes above and below the normal pressure depending on the body's equilibrium.

The pulse also followed the same trend as blood pressure.  So we can conclude from these graphs that both heart rate and blood pressure are effected by equilibrium.

Conclusion: Our tests and data confirmed our suppositions about equilibrium and heart rate.  Both blood pressure and heart rate will be effected by the position and equilibrium of the body because the body will try to normalize any state that is awkward or different from usual.  Apparently it is most usual for blood pressure and heart rate to increase with an abnormal position or equilibrium.