I wear a Fitbit I don't monitor BP during exercise but I do watch the heart rate. My doctor gave me a stress test in December he said all looked good. Perhaps you should have one as well that is the gold standard to see how well the blood flows and how your hear responds during high energy exercise. The only numbers my doctor gave me was my blood pressure he wants it below 130/80 which it is well within those limits. For moderate-intensity physical activity, your target heart rate should be between 64% and 76% of your maximum heart rate. You can estimate your maximum heart rate based on your age. To estimate your maximum age-related heart rate, subtract your age from 220.