Small weights and more reps vs heavier weights and less reps
I am very, very new at this (actually, only 3 weeks lifting weights.) But I wonder if I am doing something wrong. Because the truth is that my muscles are not even slightly sore the day after I work out. And thus, I wonder if my exercise is being as optimal as it should.
For example: Yesterday I did a couple sets of lat dumbbell raises, and I'm using 17.5 lb dumbbells. The first set went OK, but I could barely finish the second set (1 minute rest interval.) Still, today I don't feel anything. Would it be best to try to lift say 30 lb dumbbells, if only for 5 reps?