Hello, if you drink 5l every 10k you'll soon develop hyponatremia:
Depending on the weather, 400ml-800ml per hour will more than suffice.
A handheld lik… (View Post)
In agreement with Shades. I've got a Garmin FR 235 and the wrist measurement was ropey to say the least. Defaulted HRM to a Garmin chest strap and it's been spot-on (I use electrode gel for contacts)… (View Post)