Now that we have all this super-whamadyne wearable technology, anyone tracking how many steps/calories during a practice session or match? I'm thinking of getting one.
I would be more interested in heart rate changes.
I use a monitor regularly, but it is part of cycling computer. Been using it for years and am pretty accurate in guessing where my rate is.
Hard cycling efforts see HR in the 180 bpm range. I bet pool gets it in the 130s, if not 140s.