If you want a flat belly, then you need to step it up a bit. Here are 6 challenging moves to tone your core you should try.
1: Bridge opposite arm-leg reach
- Lie faceup with your left knee bent, left foot flat on the floor, and right leg extended toward the ceiling.
- Reach toward the ceiling with your the left arm and keep your right arm down by your side.
- Without moving your hips or shoulders, open your raised leg to the right and raised arm to the left.
- Now, concentrating on your abs, return your raised leg and arm to the center. Do 10–12 reps, then switch sides and repeat.