If you look at either video, you will see that, while the back is certainly straight, it is not vertical. It would be impossible to keep the back vertical without having the knees extend beyond the toes, thereby messing with the knees at the expense of the target muscles. Try it in front of a mirror without any weights and see for yourself.
"This photo shows me in a deep upright position, with a strong back arch. Note the bar high on the shoulders and the knees well out over the toes." http://www.cbass.com/Squats.htm ps this is not me
Old school and bad form. That's the way it was done before they knew better. Just like the people who continue to do upright rows and bench press to the neck, they are joint injuries waiting to happen. Incidentally, I was lucky that I never hurt my knees when I was doing squats improperly. However, I felt it at least as much in the knees as I did in the intended muscle groups. And there's no reason for that. The proper way really homes in on the intended muscles with the added benefit of less risk of injury. In any event, don't take my word for it. Try it both ways and see for yourself.
do whatever you want but in your own vids they are obviously maintaining a straight back deliberately despite your interpretation
only an idiot would perch a heavy barbell on his shoulders then deliberately stick it out in front of his lumbar spine but hey ..
gabfly, if it's any consolation to your obvious loss arguing this point.. i don't do barbell squats. it's a stupidly dangerous exercise that can be completely avoided with the leg press. i no longer do them. will you accept my olive branch in peace
I just do body weight squat. It's safe and I don't need to care too much about my posture, since it is natural. If I want to do a heavier weight, I just eat more. Life is good! PA