3 ms·

Interesting topic. Terrible reporting. Conclusion is contradicted by the data: http://www.iau-ultramarathon.org/images/file/Records/2017_2020_RecordsTable201

• loeg 8y ago
  Yeah, it seems there is some relationship between hip width and running efficiency. (Wider hips create an angle between knee and hip, whereas narrower hips the leg extends basically straight down in front profile.) So if you're a woman with relatively narrow hips, great, you've got a chance of keeping up with the men over 100s of miles. But many women have wider hips than most men.