Despite being a core group of muscles used when running, the hip flexors—a cluster of muscles in the front part of the hip—are a part of the body many people neglect to stretc ...

Russian twists are an excellent exercise to engage the obliques. Sit on the floor with knees bent and feet flat. Lean back ...

It’s the oblique muscles — which connect the lower rib cage to the pelvis on each side of the body — that rotate and flex the trunk and spine. Rotation exercises strengthen the obliques and ...

This simple workout offers you three exercises that take on different aspects of what your core can do. You'll brace and flex your abs to ... and glutes to create full-body tension.