Not sure if this report is good news or bad news. D. Casey Kerrigan of JKM Technologies LLC led research overseeing 68 young adult runners, 37 of them women say that the strain on your joints from running in running shoes is worse than wearing high heels. They observed their running motions on a treadmill in running shoes with all of them running at least 15 miles a week. While the shoes protected the runner's feet well, the researchers said they put excessive strain on hip, kneee and ankle joints. For example, knee joint twisting was about 38% higher than running barefoot they said. The twisting and strain is even greater than that put on by high heels. For more, click here.