Foamy sweat?

Triathlon Forum
1

Several of my friends have “foamed” around their armpits after hard runs. Kind of weird, but I attributed it to something like deodorant.

After my run tonight, which included 30 min of effort right at Z3/Z4 boundary (HR ~170, LTHR ~174), the back of my legs were covered in foamy sweat. First time this ever happened, and I’m wondering what the heck is up with that??

I googled foamy sweat and get all kinds of info on “kidney sweat” for race horses - LOL.

2

you may have rabies
.

3

Back in HS I once got caught out in the rain on my bike with jeans on and each pedal revolution my quads pumped foam out through the fabric of my jeans. Finally figured out it was the laundry soap that didn’t get rinsed properly. Have had the same thing happen on some of my runs in the rain. Now all my workout gear gets the extra rinse cycle.