A physical activity profile is used in order to track how much activity you have been getting - it helps you to make goals as to how you would like to improve based on your past results.
They are often coated in microporous materials often PTFE.
Resting heart rate will be decreased, because your heart and cardiovascular system are being worked out, therefore increasing the muscle tissue within the heart and thereby making it stronger, which makes it beat more powerfully and yeah. So just Resting Heart Rate,