For me, I always have water on-hand when I work out, but I rarely finish an entire 12 ounce bottle before my workout (even 60 minute ones) are over.
This is because I find that I don't need to rehydrate my body so immediately during a workout as I need to wet my whistle. I especially don't drink more than a sip or two when I'm about to do ab work (on my back or front). If I do, I can feel the water rise in my throat.
It's best to drink in moderation during exercise, and excess afterwards.
- 12/8/2012 4:55:53 PM