You may be correct about the personal trainers you know, but the youtube clip, although I don't disagree with his info, is just trying to sell his own book. I was certified through the NASM, (National Academy of Sports Medicine), and the training I do with athletes is scientifically proven and it gets measurable results. I researched, and tested programs before becoming certified, and I have over 30 years of training experience myself. I know what has worked for me, and although I have increased speed, done injury prevention, and have lost weight and gained muscle, I still would never claim that my program has cured cancer like Bert in the youtube clip says.
You are correct that being "certified" means very little, but then again I didn't become certified to sell my knowledge, I became certified to learn more to help my players and to help myself. The information I learned showed me why I had continually pulled and strained muscles, (especially calf, hamstrings and groin), through the years and it showed me that it was more a function of form rather than something contact or stress related. I was just imparting this info from what I have learned over my last 30+ years of playing and training. Yes I'm old.
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