How can it help my Tennis Elbow?

This condition is aggravated by repetitive palms down labor like shaking a manure fork. I developed tennis elbow in less than six months of daily stall cleaning. My doctor told me to either change the way I did the job or it would become chronic. He told me to change the palms down movement of shaking the manure fork to a palms up method, like shoveling. This was my prime motivation for developing the Stall Shi*fter. I have not suffered from Tennis elbow in over 15 years; many of my customers have told me the same thing, their Tennis Elbow pain began to abate within a week of using the manure sifter and using palms up labor to shovel instead of palms down labor to shake the manure fork.