- Begin on your back with your legs straight and arms reaching overhead.
- Lift your head and arms off the floor and begin to roll up to sitting, focusing on the abs rounding the back and keeping the motion smooth. If you have tight hamstrings, try this exercise with your knees bent and your feet flat on the floor.
- Roll back down to the mat slowly, one vertebra at a time. Ending by reaching your arms overhead to complete one rep.
Works: abs and hip flexors while stretching the back and hamstrings