The theory looked good on paper: Compression tights would prevent muscles from vibrating; thus, they would conserve energy that could be used to run farther and faster. On the track, however, the theory remained theory. HealthDay reports on research conducted at Ohio State University that monitored runners while they ran on a treadmill on two different days, once with compression tights and once without. The bottom line: the shorts did prevent some muscle vibration, but they didn’t improve running times or distance. The good news: they didn’t hurt running times or distance.