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Are women better than men at endurance running?

Are women better than men at endurance running?

Summary

Women are increasingly competing successfully in very long and tough running races called ultramarathons. Studies suggest the usual physical advantages men have in shorter races become smaller in longer ones, and women may have some physical traits that help them do better over very long distances.

Key Facts

  • Ultramarathons are extremely long running races, often over 100 miles.
  • Traditionally, men have been faster in races like marathons by about 10-12%.
  • In races of 100 miles or more, the speed gap between men and women shrinks to around 0.25%.
  • Women have higher fat stores and use fat more efficiently, providing steady energy in long races.
  • Women have more "slow twitch" muscle fibers, which use oxygen efficiently and support endurance.
  • Women may be better at resisting fatigue over many hours of running.
  • Experts say more scientific studies are needed to fully understand these advantages.
  • Mental toughness and handling tough conditions also play a big role in completing ultramarathons.
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