Sorry if this is a really simple question but my academic background is in completely different sciences. I recently made a computer game for an experiment that was related to anxiety and relaxation. One of the ways that I measured for success was to record participants blood pressure before and after they played the game.
There was a slight increase in systolic BP after playing the game, but not by a statistically significant amount. However the data shows a decrease in diastolic BP that is statistically significant. I've been trying to figure out why this might have happened but can't seem to find any answers. My brief overview of search engines and journals only seem to relate these changes to certain types of exercise. Which doesn't help as the participants of the experiment were asked to remain seated for 20 minutes by the time the second BP recording was made. Just wondering if anyone has any information in relation to relaxation techniques that might result in this pattern?
If it helps heart rate has mostly uniform throughout the experiment.