Work Your Abs in Just 15 Minutes

Tone and strengthen your abdominal muscles with 8 quick exercises.

Warm-up: Cat-Camel

After the warm-up, do each exercise once; work your way up to two sets. Finish with the cooldown.

Start on all fours with hands directly beneath shoulders and knees below hips (top illustration). Exhale and contract your abdominal muscles, rounding your spine up to the ceiling (bottom illustration). Tuck in your chin slightly and hold for 10 to 15 seconds. Next, exhale and arch your lower back and draw your chest and head upward; hold for 10 to 15 seconds. Return to the starting position and repeat the full move five to eight times.