These Are the 19 Best Ab-Strengthening Exercises Using Weights That You Can Do at Home

This lunge variation works the entire body, and adding the twist ensures that your abs get a little extra attention.

• Stand with your feet hip-distance apart. Hold a five- to 10-pound medicine ball in both hands with your arms outstretched in front of you.
• Keep your core stable, and take a large step back with your right foot, then lower your body until both legs are bent at 90-degree angles.
• As you sink into the lunge, twist your torso to the left.
• Bring your torso back to center with your arms straight, and exhale as you straighten your legs. Bring your feet back together, and then step back on your left leg, twisting to the right.
• This completes one rep.