
Hopefully, you're aware of the importance of your core muscles. The core is a group of muscles that are located around the torso, and that group includes the rectus abdominis (the six-pack muscles), the obliques (the muscles located along the side of the torso), hip flexors, muscles in your back and the pelvic floor.
Although exercises like sit-ups and crunches can activate these muscles, that only trains one type of movement.