The Flat-Abs-Fast Secret: Lie faceup with hands behind head, elbows out, ball between feet, legs extended above floor. Lift left shoulder and crunch right knee to left elbow (as shown). Return to start; repeat on opposite side for 1 rep. Do 12 reps.
This beginner kettlebell workout, which combines the benefits of dumbbell training with a high intensity cardio workout to help you build muscle, increase power and get lean—all in just a few sessions.
Research is proving that the more intense the workout, i., adding weights to interval training, the better the workout. You have to exercise a lot more if you are dong a low intensity workout. Check out this cool chart!