This is a core strength exercise that focuses on the low back and glutes.

Instructions

  1. Lay on your back with your arms crossed across your chest. Bend one knee up so that your foot is comfortably flat on the floor, and extend the opposite leg.

  2. Keeping your body and the extended leg aligned, slowly raise your hips off the floor. Hold this position for 15-30 seconds and then switch legs and repeat.