Amount of time for workouts

[thebends10]

i have read conflicting articles and routines on workouts and the total times from start to finish.

#1.workout sessions should not last longer than 45 min or else catabolic hormones begin to break down muscles.

#2.professional athletes workout for hours at a time, fighters of all types, sports athletes, even power lifters,etc yet build excellent mass (well toned not bulk) with speed and flexibility

Which is the right answer..please back up the answer with a good link to an article or similar

 

[ohboy]

An hour is reasonable amount considering that you have a full time job. Those athletes have nothing else to do apart from traning. Cant compare with them mates

 

[Kraken]

mine are 45 mins to an hour.