A safe, challenging, and effective method of core conditioning, planking is one of the best ways to get fit and toned. Variations of planks are used across many

A safe, challenging, and effective method of core conditioning, planking is one of the best ways to get fit and toned. Variations of planks are used across many

Forget crunches! Build your strongest core ever with 100 Planks! It includes 100 of my all-time favorite plank variations with lots of tips for beginners, corre

Learn how to sculpt your arms, shoulders, back, abs, legs and butt in just seven weeks with this comprehensive fitness guide—and without weights or a gym. Fol

Transform your core muscles with unstable workouts using the exercise ball with this revolutionary fitness book from author Jeanine Detz. From shapely abs to th