I have a female that trains with me and when she squats, her low back rounds a tiny bit in the bottom position. She is doing PL-style squats with near vertical shins and sitting back more. Is this due to weak hamstrings and thus a more pronounced forward lean? Or is it something else. I figured I would just have her lower the weight and perfect the form. Hopefully I will have a video soon for critiquing. Thanks!
Mel Siff actually answered a very similar question on the Supertraining forum back in 2002. Here's what he said:
Quote:
The slight terminal rotation or 'tucking under' of the pelvis is a
perfectly natural involuntary manoeuvre which enables one to sit in a low
squat position. In some of us, the flexibility of all the joints involved
during squatting may mean that this pelvic rotation is small or
non-existent, but in others, it poses a problem only if it causes a
pronounced rounding of the lumbar spine.
You probably can decrease your reliance on level of this pelvic
'counternutation' and 'nutation' if you progressively take your squats a
little deeper every week over an extended period. However, as I suggested
before, this tendency is diminished if you use a wider stance in your squats.
As the level of pelvic tucking-under decreases, you may progressively
decrease your foot spacing, as well - if you wish.
Interesting. I remember noticing the same "tucking" by Buk on his deep squats at the last summit (he'll just love the fact that I pointed that out here).
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Low back "tucking under" when back squatting?
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