Slow down while doing this traditional ab exercise and focus on the abs pulling to the spine — you might just find your abs shaking at the end of each set.
- Lie on the floor with your knees pulled into your chest and your hands behind your head. Lift your shoulder blades off the ground and pull your abs toward your spine, pressing your low back into the mat.
- Straighten your left leg out while turning your upper body to the right, bringing your left elbow toward your right knee. Make sure your rib cage is moving and not just your elbows. This is one rep.
- Repeat this action on the other side for a second rep.
- Do 20 reps total.
Image Source: POPSUGAR Photography / Kyle Hartman