Begin with five to 10 minutes of brisk walking, jogging on a treadmill or pedaling on a stationary bike. Two other in-home cardio options might include marching in place or jumping rope.
Stop and immediately get down on your mat for one set of crunches done until muscle fatigue. If possible, adjust intensity (as described below) so as to hit fatigue in the 20-30 repetition range.
Stop and immediately get down on your mat for one set of bike ....
2. CRUNCH: Lie on your back on a mat or padded carpet with your knees partially bent, feet flat on the floor and arms folded across your chest (as shown). Exhale as you press the lower back into the floor and begin to raise your head, shoulders and chest off the floor, concentrating on ....