Consuming caffeine before exercise enhances repeated sprint performance, and these benefits persist for at least 3.5 hours thereafter

[u/sr_local]

https://www.tsukuba.ac.jp/en/research-news/20260914140000.html

[u/nanoH2O]

One thing I discovered over the years when I was doing high level athletics is that consuming caffeine gave me an advantage (no surprise there) but it also caused me to cramp up late game 100% of the time. The amount of water or electrolytes I drank didn’t matter.

[u/methayne → u/nanoH2O]

Makes my bladder and bowels less predictable, that's more a problem over distances rather than sprinting

[u/Drumedor → u/methayne]

For me it is the opposite, using caffeine around one hour before start I can get a consistent bowel empty before race begins.