Work your abs and spinal flexibility with this classic sit-up.
- Lie on your back with bent knees and your feet flat on the ground with your arms reaching toward the ceiling.
- Keeping your heels on the ground, engage your abdominal muscles and roll through the spine, coming to a seated position.
- Hold the position for a second and, with control, come slowly back to lying on your back.
Image Source: POPSUGAR Photography / Kyle Hartman