H.E.M. Ankle Rehab is the fastest and safest way to heal a sprained ankle. HEM heals an ankle sprain much faster and better than any other at home treatment. H.E.M. Ankle Rehab was written by the National Academy of Sports Medicine certified trainer, Scott Malin. Scott is a co-founder of Dynamics of Motion, a company dedicated to creating the best diet, weight loss and fitness books on earth.