Make sure to do it slowly and controlled like she is. Do not swing your legs. You want your lower abdominals to do the work, not the momentum from you swinging your legs. Be sure to contract while performing. I do these while lying on a decline bench the opposite way to add resistance.
Hey there Aunt Scripty! Thank you so much for all the hard work you do assisting writers all over the interwebs C: My question is, if my character is stabbed in the gut and pushed over the side of a speeding boat, could he survive long enough to swim to shore? Would having his wound be in the arm be better or worse for survival? Thanks again!