http://www.hoopskills.com/agility/tensile-band.html -- Prehab before you Rehab with the P.P.T. Band. The P.P.T. Band from Tim Grover's ATTACK Athletics may help prevent common sports injuries. It strengthens specific muscles in the lower leg that cannot be trained with traditional exercises.
"The P.P.T. Band has been an integral part of my training program. I recommend it to anyone trying to prevent ankle sprains or recover from ankle injury."