Take a group of guys who have been lifting weights for at least a year.
Split them into two groups.
Get both groups to do the same exercises – bench press, military press, wide grip lat pulldown, seated cable row, squat, leg press and leg extension – three times per week for eight weeks.
But with one key difference.
The first group does 3 sets of 8-12 reps to failure with a heavy(ish) weight.
The second group uses a lighter weight and does 3 sets of 25-35 reps to failure.
All other variables – rep tempo and rest between sets – are kept the same.
Which group do you think will build the most muscle?
Check out this article for the answer!