Noticing that prolonged standing at an easel and painting with the right hand results in a twisted torso, it seemed a good idea to spend time to learn sketching with the left hand to twist the torso in the opposite direction and thereby, hopefully, realign centrally.
Remembering that da Vinci is reported to have been ambidextrous, I looked him up on Wikipedia and noticed with disappointment that his Vitruvian Man shows two opposite twists. The belly button is displaced with respect to the sternum in one direction and the sternum and his nose are displaced in the opposite direction.
Thus, rather than trying to get help from da Vinci, I am now rereading Eric Franklin’s book ‘Dynamic Alignment through Imagery’.
Do you obsessively maintain a posture while doing your art? If yes, does it do weird things to your body alignment?