Pronation is the inward movement of the foot as it rolls to optimally distribute the force of impact on the ground as you run. With "normal" pronation, the foot “rolls” inward about 15 percent, comes ...

Joseph Cheptegei has only raced four times in 2020, but he has made each opportunity count by breaking three world records. His latest performance broke a 15-year-old world record in the men’s 10,000 ...