In any written work, the title is an important clue about both the subject matter and the author's attitude or tone toward the work. In an oral presentation, a title can be even more important, as it is often both seen and heard by the audience, doubling its impact. In short, the title is the audience's introduction both to you and your presentation. Because of that, it is important to set the proper tone.
I do have a few ideas for you; however, since I do not know you, your audience, or your material, here are a few things for you to consider before choosing your title.
Humor is often an effective tool to capture an audience's attention, but it is not always appropriate. Repetitive stress injuries can be quite serious, of course, so perhaps a little levity would be nice. If your audience is people who are suffering from these injuries, however, the humor might be in poor taste.
Alliteration is also an effective device to use in a title and will serve as a mnemonic device (something which will help your audience remember your presentation--or at least the title). Going too far, though, can move you from witty to ridiculous very quickly.
Any kind of startling word or phrase will also catch the attention of the audience, but sometimes these are best saved for the introduction since your audience might still be reacting to your title while you have moved on to your introduction.
Finally, a word or phrase (particularly an unusual one) from your introduction might work well to connect your title to your speech. Whatever title you choose, it is essential that it has some direct connection to your speech. The title can also be used in the speech somewhere, perhaps in the conclusion.
Here are a few specific ideas:
Over and Over...and Over Again
Lather, Rinse, Do NOT Repeat
Cumulative Trauma Disorders
The Wrong Repetition (sounds alliterative)
Little by Little