People come from many backgrounds, many places in the world, and are exposed to different acronyms and vocabulary, especially in the fitness world.
Therefore, consider the following:
* When using abbreviations, place the full text in parenthesis next to it. e.g. ROM (Range of Motion)
* Imagine this post will be the first post someone will read, so don't make any assumptions about the reader's knowledge
* The next person reading your post knows less about technology than you do