(It was brought to my attention that the guys over at EliteFTS did this article. I remembered reading it recently, but wasn't sure where. So, all credit goes to them. This is my iteration of their points. And, yes I know that iteration technically is a mathematical term, but it sounds too cool not to use it.)
4) Building bulk comes from lots of volume. Ladies, you're going to hate this one again because it goes against the grain of everything you've ever been told. That rep range of 8-20 that most women love to use is actually the rep range that causes what we in the business like to call hypertrophy, or increase in muscle size. Again, we can go to Essentials of Strength Training and Conditioning from Bill Kreamer and see that the 1-5 rep range builds maximal strength, 5-12 builds bulk, and 12+ increases muscular endurance. Plus, how many times have you seen someone do squats, then leg press, then the leg extension leg curl machine, then thigh ab/adduction machine, then calf raises? Pretty pointless. Focus on heavy weights, low reps to increase strength, not size.
5) Lifting heavy makes you strong, not huge. This goes with the previous one. When lifting heavy, you're actually making gains in the neurological system. Your brain is learning how to use the muscle you already have more efficiently. Plus, heavy weights also help improve bone density which is critical for ladies to help prevent osteoporosis in the later years of life.
6) You have to eat a lot to bulk up. And by a lot, I mean A LOT. Remember, if we burn more than we consume, we're losing fat (if you're training, if not, you're losing muscle). So to get big you have to eat enough to not only maintain your current weight, but also to fuel your exercise and training regimen, and have enough left over to pack on the size.
7) What your old trainer had you doing probably wasn't working. Most females have an aversion to squats and deadlifts because they bulked up when their old trainer "prescribed" them. We have two possible scenarios here. 1) The trainer was stupid and was using a moderate weight and that rep range of 8-20, which causes hypertrophy. 2) Most females look in the mirror and see an extra 5-20 pounds that really isn't there when they realize they are becoming stronger. Just because you can see more muscle now that the fat is gone doesn't mean that you have gained size.
The rest still to come. . . .