there we go. >> there you go, reaching straight down. >> warmup. >> sanjay, looking good. looking good. >> we're going to be putting this device on sanjay and so we measure the heart rate and respiration rate or what we call the physiology so what we're going to see here in the gym today is sanjay against different types of athletes so we've got some ball players, a football player. my name is brian russell. i'm the ceo of zephyr. i work with leslie. to measure somebody we need to put it on them unencumbered. someone like leslie can look at that data while she's in clinic and logon and see that data anywhere in the world. >> this gives us an amazing amount of medical grade data.