but if you're looking more let's say for example you want to know better now for example uh your subsidization or have an idea of that it I would say even argue that you can't necessarily only do one measurement you have to do a little bit of couple of let's say little bit change in intensities not much but small range there with a couple of measurements to get an ID because your let's say call it your your lactate uh or your maximum lactate steady state concentration for example in in a session can also vary based on for example dehydration