Believe it: This 20-minute full-body routine from Contributing Editor Petra Kolber—with six- and nine-month fitness boosts—is the only workout you'll ever need. Just repeat two or three times a week and combine these moves with 30 minutes of cardio, three times a week.
- Lateral Lunge With Biceps Curl
- Hip Hinge With Triceps Extension
- Figure Eights
- Lunge With Overhead Press
- Prone Leg Raise With Ball