IRON YOGIS As an unflexible, pavement-pounding runner, I’ve wanted to integrate yoga into my exercise routine for years. I’ve tried doing DVDs, I’ve taken a class here and there…nothing has stuck. But a few classes into CorePower Yoga’s week of unlimited free classes for first-time visitors, yoga and I finally clicked. I’m hooked on pretty much every class on offer there, but when I want a super-intense session, I go to Yoga Sculpt. “The great thing about this class is that you do not need to go to the gym afterward,” says instructor Eliza Wendt. “It’s strength and cardio.” She’s not kidding. The one-hour class takes place in a 98-degree room. Students choose light dumbbells and leave them on the floor during gentle asanas to awaken muscles. Next, single poses are performed while holding the weights. (Muscles quickly go from pleasantly warm to working-hard tingly.) And then the full-body workout really begins: Students flow through various series of poses while holding weights. (Meanwhile, tingling muscles become burning, quivering ones.) In each class, sweat pours off my face, dampens my tank top, rolls down my legs and drips onto my mat. (Before Yoga Sculpt, I didn’t know my legs could sweat.) I leave class feeling zonkered, stretched out and centered. And I think it makes me a stronger runner, which is a happy side benefit. One week unlimited free classes for new students; drop-in class rate $16. •555 W Roosevelt Rd (312-829-9642, corepoweryoga.com); •12 W Maple St (312-266-9642).