# Lactate Profile data/graph **URL:** \ **Category:** Uncategorized\ **Created:** [31 October 2025 12:55 UTC](https://forum.intervals.icu/t/lactate-profile-data-graph/114697 "2025-10-31T12:55:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![binhopires](https://forum.intervals.icu/user_avatar/forum.intervals.icu/binhopires/32/46100_2.png) [@binhopires](https://forum.intervals.icu/u/binhopires)\ **Post date:** [31 October 2025 12:55 UTC](https://forum.intervals.icu/t/lactate-profile-data-graph/114697/1 "2025-10-31T12:55:18Z")
**Hi everyone,** Sorry if this has already been asked, I couldn’t find it through search. I know it’s possible to create custom fields, but I’d like to know how _you would approach this_. I’m trying to replicate what I currently do in Google Sheets to track my lactate tests: basically a few fields and a custom graph within the activity view. Here’s a screenshot: Thanks! ![image](https://forum.intervals.icu/uploads/default/original/3X/1/c/1c4c854cd57f07676ea8b99fdddcbcf26616ace0.png) ---
**Author:** ![R2Tom](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r2tom/32/50144_2.png) [@R2Tom](https://forum.intervals.icu/u/R2Tom)\ **Post date:** [31 October 2025 20:28 UTC](https://forum.intervals.icu/t/lactate-profile-data-graph/114697/2 "2025-10-31T20:28:51Z")
You could do that with interval fields. Split your activity into these 5min intervals. Avg. W and max. HR are built in fields. You just have to create an interval field for entering your lactate value for each lap/split. I think it should even be possible to create charts from interval fields. ---
**Author:** ![binhopires](https://forum.intervals.icu/user_avatar/forum.intervals.icu/binhopires/32/46100_2.png) [@binhopires](https://forum.intervals.icu/u/binhopires)\ **Post date:** [3 November 2025 11:29 UTC](https://forum.intervals.icu/t/lactate-profile-data-graph/114697/3 "2025-11-03T11:29:53Z")
Thank you very much! This makes sense