For field use with a lactate meter, the duration of effort steps does not significantly matter as long as a target concentration is identified.

“if you're are going to use it for actively let's say controlling the intensity Outdoors for example using a lactate meter I um then then I would say it really doesn't matter because then you could say that even taking into account that there's some lag between what's happening in the muscle and what's happening in the blood exactly because the thing here is that here you're looking for more let's say um not necessarily here also it's important just for me to say initially that when you find for example a lactic concentration of LT1 and lt2 for example or basically at and LT for example or at lt2 but we basically say lactate turn point2 and lactate turn point1 so the first one and the second one”