Despite the fact that the compression socks did indeed reduce the muscle vibrations, this didn’t appear to have any effect at all on muscle fatigue. So are compression tights useless? Because this study was so small—just 10 runners, all of them experienced and all of them male—it’s hard to say for sure. And the researchers only measured the runners’ vibrations over the course of two days. Chaudhari says it’s certainly possible that the difference with the tights was so subtle that it would only be detectable over a longer period of time, slowly accumulating to have a measurable effect. However, he says, that type of study is a lot more difficult. You'd have to factor in variables like nutrition, hydration, variations in cardiovascular capacity, and other things that are a lot harder to control than a couple of days of monitored running.