With the stressing of "chest out", it seems to me that a common tendency of misinterpretation would be to actually push the chest actually too out which in turn can either:
1.
send the hip too far back, like in the second case in the first picture below (lumbar lordosis),
2.
or by trying to correct the hip too strongly cock it way too in, like in the third case of the second picture (military back), which at my current understanding seems to be a common hyper correction mistake and also (wrongly?) recommended by some experts like in this video: http://www.youtube.com/watch?v=3MIZ6Fl2 ... W&index=11
Thoughts/Ideas?
1.
send the hip too far back, like in the second case in the first picture below (lumbar lordosis),
2.
or by trying to correct the hip too strongly cock it way too in, like in the third case of the second picture (military back), which at my current understanding seems to be a common hyper correction mistake and also (wrongly?) recommended by some experts like in this video: http://www.youtube.com/watch?v=3MIZ6Fl2 ... W&index=11
Thoughts/Ideas?