Using the Normatec Elite Hip air compression device seemed to help with tightness in my hips and hamstrings during marathon training, but there are cheaper ways to boost recovery.

The purpose of your engine is to compress fuel and air and then ignite it, creating heat energy that then makes mechanical motion. If your engine can't compress the air and fuel properly, the engine ...

You might talk about it often, but do you really know what compression is all about? Every engine has to make it and those that don't are hurtin' for sure. But, here's the confusing part, for this ...