the citius end world records progression announces the completion of a brief ultra-physiological quest更快结束世界纪录进展宣布完成一个简短ultra-physiological追求.pdf

The Citius End: World Records Progression Announces the Completion of a Brief Ultra-Physiological Quest 1 ´ 1 1,2 1,2 1 Geoffroy Berthelot , Valerie Thibault , Muriel Tafflet , Sylvie Escolano , Nour El Helou , Xavier Jouven2,3, Olivier Hermine3,4, Jean-Franc¸ois Toussaint1,3,5* ´ 1 Institute for Biomedical Research and Sports Epidemiology (IRMES), Paris, France, 2 INSERM, IFR69, U780, Villejuif, France, 3 Universite Paris-Descartes, Paris, France, ˆ ´ ˆ 4 Centre National de la Recherche Scientifique (CNRS) UMR 8147, Hopital Necker, Paris, France, 5 Centre d’Investigation en Medecine du Sport (CIMS), Hotel-Dieu, ˆ Assistance Publique-Hopitaux de Paris (AP-HP), Paris, France Abstract World records (WR) in sports illustrate the ultimate expression of human integrated muscle biology, through speed or strength performances. Analysis and prediction of man’s physiological boundaries in sports and impact of external (historical or environmental) conditions on WR occurrence are subject to scientific controversy. Based on the analysis of 3263 WR established for all quantifiable official contests since the first Olympic Games, we show here that WR progression rate follows a piecewise exponential decaying pattern with very high accuracy (mean adjusted r2 values = 0.91 60.08 (s.d.)). Starting at 75% of their estima