One Session Duration
60 to 90 minutes! Sixty minutes is an optimal duration to spend a day in the workout to build muscles. However, you can push yourself to ninety minutes to feel satisfied after the workout.Ideal Interval Time Between Sets
2 to 3 minutes intervals between sets would be suitable if you want to build mass.
Allowing your working muscles to rest for more than a couple of minutes between the sets enables you to perform the following sets effectively.