Never Again NASM
NASM blocked me from posting on its Facebook page, because I inadvertently showed up its CPTs. If they didn't have a cookie-cutter curriculum it wouldn't have been so easy. For instance, if power is equal to acceleration x mass, then you cannot delete acceleration nor mass from the equation and still train for power. NASM apparently didn't know that.
They also posted a question about which muscles are most affected when we squat using a weighted barbell. I answered that it depends if the bar is placed high, across our shoulders, or low, near the shoulder blades, on our backs. The first one puts more emphasis on our quads the second, on our glutes.
I'm NSCA certified. We were told how to activate certain muscle groups while studying for the test. Further, we were given just enough information to guide us to reason out the answers. For instance, men have lower pulse rates, because they have bigger hearts and lungs and, therefore, their hearts push more blood through the left ventricle with each beat. We weren't told that directly, but we're given enough information about the affect of training on the cardiovascular system to come to that conclusion. No OPT-model's going to get you that.
I had respect for NASM until they banned me from their boards, even though I never swore, called anyone stupid (really didn't think that anyone was until I was banned for seemingly no reason), and earned the FNS credential from them. I now believe that they are a money hungry organization, and I would never earn anything through them again. As a matter of fact, they can have back what I already have earned. I'll earn another from an organization that I have more respect for.