[quote]JoabSonOfZeruiah wrote:
[quote]alternate wrote:
[quote]JoabSonOfZeruiah wrote:
[quote]alternate wrote:
Not posting a pic, guys, so feel free to not believe me
those questions about deads were sort of hypothetical, but I am looking to get into them now.
Is Steve Cotter’s back still rounded though? It looks only just rounded. But it also looks like he is significantly shifting all the emphasis to his quads with that form - he’s obviously highly skilled so no dissing him - but I’d like to sit really far back on the heels and still maintain a neutral spine.
What about doing them from a high box so the non-working leg can dangle all the way down - it is easier to keep a neutral spine then - does anyone have a vid of someone doing it with a neutral spine?
Is it actually physically possible to do? And if it is, what mobility drills should you work on to achieve it?[/quote]
At a certain point physics goes into play, if your going to be doing pistols sitting back on your heel with a neutral spine, either your range of motion will be very small or you will fall backwards, your knee will shift forward even with a weight held in front of you if you do not want to fall backwards and get decent range of motion meaning you can’t de-emphasize the quads.
Since this is the bodybuilding forum do this for your legs.
Thanks.
Does this only apply to unilateral squats (ie. pistols, though) - or do bilateral squats enable you to sit MUCH further back and still squat ass to grass with a neutral spine?
Is it actually physically possible to lean really far forwards with a neutral spine (to prevent falling over backwards) when your hip is flexed ass to grass in a pistol squat - and all the weight is on your heel? If so, I guess it’s a mobility issue holding everyone back. (Since no-one seems to be able to use this form). What mobility drills would correct this?
What about doing pistols the TRX way, where you hold onto the rope so you can lean way back without falling over backwards. When weighted would that be a good exercise, or completely useless?[/quote]
A lot of it has to do with your center of mass over your base of support(either feet or foot) for the same person a front squat and back squat done to the same ass to grass depth using the same weight; in the back squat ones torso and/or shins will lean more forward than the front squat to keep the center of mass over the base of support making both ass to grass styles place more emphasis on the quads.
If your sitting back like in a power lifting squat and involve the hamstrings more in the movement you really can’t squat ass to grass and at best are able to hit parallel or a bit lower.
Similar mechanics occur for the pistol squat[/quote]
Hey, but if you’re leaning really far forward in an a2g back squat, doesn’t that make it hip dominant rather than quad dominant? And I thought the glutes really came into play the deeper you go below parallel?
Is forwardness of the trunk angle, or the vertical-ness of the shin the more important factor in making a squat movement quad or hip dominant?
Having the weight in front of your body allows a more vertical shin when squatting a2g, as the weight pulls you forward so you can lean further backwards (in turn making the shin more vertical) without falling over. But a vertical shin increases posterior chain involvement.
Having the weight on your back when squatting a2g means you need to lean forward in order not to fall over, which in turn causes the knee to drift over the foot. But a forward torso lean increases posterior chain involvement.
Which of the two above options increases posterior chain involvement the most?