Yep, particularly anything that requires your hip flexors, like when your feet are raised off the floor. Mine grip on like crazy things if I run before core work.
Cirque du soleil are in Belfast next autumn. Just in case you want to audition now with all this coreness.
Yeah the hip flexors were having a tough time. Also just general abs from stumbling and slipping on snow and ice. I may need to do a bit more than 5/10 mins a day to be in the Cirque du Soleil. And ability or talent. Would also need that.