# @runwithbigj on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DRSL9jaAExm
- **Gondola URL:** https://gondola.cc/posts/37123393-runwithbigj-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/7a755e1a4a.jpg
- **Posted:** 2025-11-20T16:13:03.000+00:00
- **Account Owner:** BIG J (Jonas F) (@runwithbigj) — https://gondola.cc/runwithbigj

## Caption

If you feel these symptoms, it’s already too late:

Cramps, chills, dizziness, sudden increased perceived effort, a spike in heart rate while on the course, the clock is ticking and you could either DNF or forget about your PR. 

Here’s the thing:

If I’m losing 1600mg/hr, taking 1-2 x 500mg sodium electrolytes just isn’t enough and I’m not even accounting for heat, humidity, you name it. 

So what I'm saying here is that understanding your numbers is a game-changer. 

I’m a heavy sweater. Everyone’s different. This is your reminder to dial in your hydration, like you do your training. 

Stay Working. 

#athlete #runner #running #performancelab #marathontraining #hybrid #dreamon 

EVER CRAMPED DURING A RACE?

## Stats

- **Views:** 681
- **Likes:** 210
- **Shares:** 0
- **Comments:** 18

## Tags

hybrid, running, performancelab, runner, marathontraining, athlete, dreamon

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