
Originally Posted by
cylon357
I'm willing to bet professional athletes spend that much time working out over the course of a given day, though it is likely broken out into 2 or even 3 a day sessions. They have access to better support (doctors, therapists, trainers, etc) and better aas than the majority of us do, though, so they adjust their daily work based in part on bio-feedback, cycle tracking, etc.
Anyhow, a 4 hour workout does seem excessive, but if you have the energy, and you are avoiding over training, then go for it. When I've been in better shape, I have done 90'ish minute workouts natty, so I would think good gear could extend that. Probably not a good idea to go that long all the time though.