# Fatigue spike?! **URL:** \ **Category:** Bug Reports\ **Created:** [26 April 2024 11:53 UTC](https://forum.intervals.icu/t/fatigue-spike/65518 "2024-04-26T11:53:34Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![R.enato](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r.enato/32/29951_2.png) [@R.enato](https://forum.intervals.icu/u/R.enato)\ **Post date:** [26 April 2024 11:53 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/1 "2024-04-26T11:53:34Z")
Hi, I am doing relatively light rides (load 50) but I see that my fatigue has spiked hugely after the last ride, for reasons I don’t understand (most likely a bug, data error) so that my form is now -150% 😳. Any explanation? Thanks, R ![Screenshot 2024-04-26 094318](https://forum.intervals.icu/uploads/default/original/3X/d/c/dceeb4fc10732a02da36eb3f8cc896a7863e8639.png) ---
**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\ **Post date:** [26 April 2024 13:38 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/2 "2024-04-26T13:38:57Z")
Post screenshots so that we can see what is going on. You most likely need to have a read here first: > [@FITNESS PAGE - a guide to getting started](https://forum.intervals.icu/t/fitness-page-a-guide-to-getting-started/17702): > > In the guide, you will learn about the Fitness page , and the features available. Each section is covered in a separate post, so that any features relating to the specific section on this page can be updated accordingly. ---
**Author:** ![R.enato](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r.enato/32/29951_2.png) [@R.enato](https://forum.intervals.icu/u/R.enato)\ **Post date:** [26 April 2024 13:46 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/3 "2024-04-26T13:46:18Z")
Thanks, screenshot added. I don’t think it’s about my knowledge. This was after a series of short rides, and I did not even ride on Thursday 🤷‍♂️. ---
**Author:** ![Gerald](https://forum.intervals.icu/user_avatar/forum.intervals.icu/gerald/32/28423_2.png) [@Gerald](https://forum.intervals.icu/u/Gerald)\ **Post date:** [26 April 2024 14:10 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/4 "2024-04-26T14:10:29Z")
Do you have something planned for the future (next 7 days)? The spike is right on the vertical line, so not something that happened prior. ---
**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\ **Post date:** [26 April 2024 14:50 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/5 "2024-04-26T14:50:50Z")
I think you have planned rides for today that didn’t pair and thus the load is doubled. That would disappear tomorrow, because past planned workouts don’t count anymore when the day is over. ---
**Author:** ![R.enato](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r.enato/32/29951_2.png) [@R.enato](https://forum.intervals.icu/u/R.enato)\ **Post date:** [26 April 2024 18:20 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/6 "2024-04-26T18:20:55Z")
Thanks. I do not have anything planned and the spike is actually referring to yesterday, when I did not do anything. The vertical line was on the last activity, which was on Weds 24. The peak is on Apr 25 and the effort should be under activities (in the past), while there is nothing for Apr 25. Even if I had something planned, it would need to be like a multiple ultramarathon to increase fitness by 23 points in a single shot 😱 Today is post-spike, my fitness is 73 (down from 75) and at this pace I’d be in the red for quite some time. **I guess my question is: is there a way to clean that spike if it’s not activity-related?** The only planner I use is TP, and I deleted two empty exercise for yesterday and I have nothing planned for the near future. This bring me to raise another question: where can I plan activities in Intervals? I think I read it was now possible to do and to transfer to the wahoo unit. ---
**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\ **Post date:** [26 April 2024 19:21 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/7 "2024-04-26T19:21:05Z")
> [@R.enato](#): > > I guess my question is: is there a way to clean that spike if it’s not activity-related? Fitness and Fatigue are mathematical calculations from a Load input. This can’t simply ‘fall from the sky’. Something must be there that is causing this. Change the calender view to List view and make sure all filters are off. Show us a screenshot with load column displayed. ![image](https://forum.intervals.icu/uploads/default/original/3X/5/2/52e9436dc3da6687fbe2e5f1af18b3e853bf9bdf.png) ---
**Author:** ![R.enato](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r.enato/32/29951_2.png) [@R.enato](https://forum.intervals.icu/u/R.enato)\ **Post date:** [26 April 2024 20:39 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/8 "2024-04-26T20:39:00Z")
Thanks for wanting to look into this. Here you go. The last larger-than-average load was almost 2 wks ago, a 3h ride with a load of 170. It resulted in an increase of 3 in fitness and 17 in fatigue ![image](https://forum.intervals.icu/uploads/default/original/3X/7/f/7f30679a89f9adf6d2228abdb140d73ad46f2ac1.png). ---
**Author:** ![MedTechCD](https://forum.intervals.icu/user_avatar/forum.intervals.icu/medtechcd/32/40383_2.png) [@MedTechCD](https://forum.intervals.icu/u/MedTechCD)\ **Post date:** [27 April 2024 08:27 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/9 "2024-04-27T08:27:27Z")
Can´t see anything wrong here. @david should have a look to figure it out. ---
**Author:** ![R.enato](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r.enato/32/29951_2.png) [@R.enato](https://forum.intervals.icu/u/R.enato)\ **Post date:** [27 April 2024 15:33 UTC](https://forum.intervals.icu/t/fatigue-spike/65518/10 "2024-04-27T15:33:59Z")
Well, I did a 2h ride today. The spike is gone 🤷‍♂️ ![IMG_8236](https://forum.intervals.icu/uploads/default/original/3X/5/7/578ba58d6aa25aedfb31aff222a28d2c5637505c.jpeg)