"Abs, Core, and a Little Bit More" Bodyweight Workout

Work your legs and abs with this one move.

• As you return to standing from your squat, bring your right elbow to your right knee to perform a side crunch.
• Alternate sides with every rep.
• Repeat for 45 seconds.

Work your abs to stabilize your torso as you alternate circling your arms while holding a plank.

• In a plank position, reach your left arm back and then circle it overhead, bringing your palm back to the floor; repeat on the other side.
• The wider your feet are, the more stable you will be. Do not let your pelvis drift toward the ceiling.
• Repeat for 45 seconds.

This classic Pilates ab exercise provides a great hamstring stretch, too.

• Lie on your back with both legs in the air and your head and shoulders off the ground; hold your right ankle as you lower your left leg toward the floor.
• Keep your abs pulled to your spine, and switch legs.
• Repeat for 45 seconds.