The angle of the torso, when squatting, is not a function of whether or not the bar is high or low on the back. The angle of the torso (and thus torque on the spine) is primarily determined by the angle of the shin, a.k.a how much the ankle dorsiflexes. AND IN MY BOOK, THIS IS THE KEY TO BEST BACK TRAINING PRACTICES. GET IT??? MAKE YOUR QUADS, HAMS AND GLUTES DO THE WORK. If your shin is perpendicular to the floor, then your torso will incline forward to keep the CoM over your BoS, regardless of how low the bar is on your back. And your back will be forced to handle higher torque. A good, general rule of thumb, IMHO, is to keep the shins and the torso parallel, from an inclination standpoint. This could change with femur/torso length issues (tight adductors and hips in general can cause issues too), but this method is pretty good to help someone figure out whether or not they have decent ankle flexibility when squatting. And this will minimize torque on the back, as we will d
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Are you planning to retire before the kids today grow up? If not, you may find yourself strangling some people during your sessions.
Cell phone stuff like that is only going to get worse. For those of us that grew up without them or have spent the last 10 years incarcerated, we can get by with not having them when we go to the restroom. I remember that up until 3 years ago, I didn't even carry one on my person (you know it got in the way of my gun). I would keep it in my glove box for road emergencies. Of course, now I'm as guilty as anyone in terms of having it, but I did turn mine off during your workshop :)
CI