Great question ! Never thought about this one, I don't have the equipment to test this but I'm sure someone does, that would be a fun little experiment.
Short answer is yes. BP and heart rate go up,they top off at orgasm. No,I’m not hooking my self up to my BP monitor while trying to super-o,that distraction would fall under obstacles to progress. But my Apple Watch claims my heat rate goes up. Siri doesn’t tell me lies.