Sit-ups remain one of the best methods of reshaping the abdomen, second only to standing in front of a lit cannon. Enjoy explosive exercise with today's Groupon: for $50, you get one month of unlimited CrossFit classes at CrossFit Now (a $200 value).
CrossFit Now's coaches include policemen and firefighters who lead exercisers of all ages and skill levels through a rigorous training regimen adjusted to fit each individual. Tackle a complimentary one-on-one consultation session to learn CrossFit basics and try out a class before delving into the exercises, which focus on building stamina, speed, strength, and flexibility. Workouts utilize functional movements that can be applied to everyday life, such as sit-ups to build cores, squats to tone thighs, and shopping-cart bench presses to strengthen triceps. More than 40 Workout of the Day classes per week rotate heart-pumping routines, interspersing them with rest periods for mending sore muscles or catching up on needlepointing.