If you’ve nailed a chest lift, perfected your plank pose and could do a roll-up in your sleep, you’re probably looking for the most advanced Pilates exercises to help level up your at-home practice.

I tried mat Pilates for the first time a few years ago at my local YMCA. We crunched for minutes at a time, we planked for what could have been hours. In groaning unison we went from lying flat on our ...