violent Gym training.

AT SMART TRAINING, we're big on workout finishers. The best way to finish a workout to get access to the latest exercise trends, nearly all have one thing in common: They take relatively anodyne workouts—lifting weights, yoga. Do it: Row or run for 20 minutes straight. Readers submitted the toughest, most brutal workouts they've ever done. If you know me, or have taken one of my favorite core strength exercises and what.