This video demonstrates how to perform neck and lower back towel molding exercise. The towel molding exercise supports the normal curvatures in the neck (cervical) and lower back (lumbar).
Caution: If you experience discomfort during this exercise, you can decrease the duration and decrease the height of the towels. You may also shift the towels to a more comfortable position along the spine. If the discomfort persists, stop the exercise and consult with your health practitioner.
Ask Dr. James 
Hi James, Thanks for the video – I need to buy a mat thicker than a yoga mat because my floor set right on concrete – but I shall definitely do this exercise. I’ve noticed that the more my knee bothers me, the more I tend to hunch over as I walk. I totally overdid it on subways in Toronto on the holiday weekend and am really paying the price now. I’ve been good about the pre-op stretching but have been doing them on the bed so I’ll take your advice about having a firmer surface. I am sorry I didn’t get a Christmas card to you but I wish you all the joys of the season just past and a healthy, happy, successful year ahead. Cheers,
Woody
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