People choose to run at their optimal speed.

摘要: Objectives The purpose of this article is to test whether people choose behave in a manner that reduces the amount energy they use travel given distance. While has been shown consistently for walking, it never tested with human running. Materials and Methods We collected energetic data lower limb anthropometrics on nine men running at six different speeds. We all speeds 3 days took average values each speed. On day we also asked participants speed which could comfortably run an hour, these preferred then fit 2nd order polynomial compared minimum cost transport (SpMinCoT) occurred their speed. Results All showed curvilinear relationship between (CoT). Additionally, was not significantly than minCoT (p = 0.215), best line CoT y = x (R2 = 0.994). Discussion Humans are able preferentially identify minimizes expenditure during running, as well walking. Over long distances, conservation would be particularly crucial so further investigations should focus mechanisms by detect ‘optimal’