Free MegaFormer Pilates Classes at Plank Studio
Philadelphia Magazine (blog)
Curious about the 250-pound, 10-foot-long, talked-about-in-hushed-tones MegaFormer Pilates machine? The newly opened Plank Studio in Wayne has them, and they're running a few classes this weekend and next so you can try them out for free. Actually …

Fitness: Strengthen your core with The Plank
BikeRadar.com
This can be quite tricky: a method used in Pilates called 'zip and hollow' involves keeping your stomach muscles contracted while breathing in (allowing …