https://www.amazon.com/JH-Smith-Body-Exerciser/dp/B00266X5JY/ If you scroll down to the bottom of this product there is a short video showing how this simple pulley could possibly be used to move your legs. Thoughts? And if one didn't have strong arms, does anyone know how this could be adjusted to make pulling the legs easier? Also wondering if anyone knows of a similar product with something like velcro adjusted straps that might hold your feet better?