![Ab Roller: 70-Year Old Grandpa Reveals His Secret to Great Abs](https://keepfitkingdom.com/wp-content/uploads/thumbs_dir/Ab-Roller-70-Year-Old-Grandpa-Shows-His-Secret-to-Great-Abs-KEEP-FIT-KINGDOM-842x472-2-qczdu5e0tivt8stlafzzpaj8juiutea6t5a5mrjycg.jpg)
Ever wondered how to develop your abs without painful sit ups? Well you can with trunk twists, lower ab raises and stomach suctions to give your stomach a more tapered and trim appearance. You can also use a tool such as the ab roller, which is simply a bar put through a wheel. In the video ...
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