Planking
Josh wanted to work on his abs. But doing situps and crunches hurt his neck and back. So he read about planking and tried it. After a few weeks, he was able to hold a plank for half an hour. And his abs continued to get flatter and more muscular.
So he read about planking and tried it. And his abs continued to get flatter and more muscular. Josh wanted to work on his abs. But doing situps and crunches hurt his neck and back. After a few weeks, he was able to hold a plank for half an hour.