Hold a plank for 10 seconds and then break. Perform 3 rounds of a 10-second plank each day. Do this for a few weeks to build strength. Then, steadily work your way up to longer intervals. Try two, 15-second planks, then hold it for a full 30 seconds.

Start in plank position. Carefully shift your weight to your right forearm (or palm). Extend your left arm straight out in front of you. Hold for three seconds while keeping your core tight. Slowly bring your arm back to starting position. Switch arms and repeat. Do two to three sets of 10 reps.