Avoid flexing forward over your desk. Lengthen up through your spine with your shoulders back and down, and keep your head in alignment. Do not let the abdominals sag. Your feet should be flat on the floor, with your knees directly over them.
Avoid flexing forward over your desk. Lengthen up through your spine with your shoulders back and down, and keep your head in alignment. Do not let the abdominals sag. Your feet should be flat on the floor, with your knees directly over them.