It's always said to "keep your back straight", however you can't "straighten" your back at all, your back is just bones and cartilage and the muscles of your back don't help straighten or not straighten, they move your arms. Same with so-called arching or rounding your back - you don't actually do anything with your back, you are simply loading it in different ways. If you allow your shoulders to fall forward under weight, then that causes your back to bend. If you look too far down or don't engage chest muscles sometimes, that can also cause the effect of bending of the back. It's like if you're asked to keep your finger straight - the only thing you have control over to keep it straight is the joints of the finger. Keeping the part between the joints straight would be all about reducing the shear load on it. You can't keep something straight if you can't move it to begin with.
>>77353261u retarded as fuck OP.
>>77353261>your back is just bones and cartilage and the muscles of your back don't help straighten or not straighten, they move your arms.
>>77353261Just straighten your back retard.
Thanks OP I didn’t know this
>>77353261You just flex the muscles involved to keep your spine as static as possible throughout the lift while under load. A bit of rounding doesn't matter as long as it's static.Of course you can also train active flexion and extension of the spine, as with jefferson curls but that's a different matter and generally with much less load.
>>77353261>It's always said to "keep your back straight", however you can't "straighten" your back at allI can, git gud
>>77353261the important part is to not change the curvature of your back during the lift, whatever the starting postion may be
