DIFFERENTIAL EFFECTS OF STRENGTH TRAINING LEADING TO FAILURE VERSUS NOT TO FAILURE ON HORMONAL RESPONSES, STRENGTH AND MUSCLE POWER GAINS Mikel Izquierdo 1 , Javier Ibañez 1 , Juan José González-Badillo 2 , Keijo Häkkinen 3 , Nicholas A. Ratamess 4 , William J. Kraemer 5 , Duncan N. French 6 , Jesus Eslava 1 , Aritz Altadill 1 , Xabier Asiain 1 and Esteban M. Gorostiaga 1 Running title: Strength training leading to failure and endocrine responses 1 Studies, Research and Sport Medicine Center, Government of Navarra, Spain 2 Olympic Center of Sport Studies Spanish Olympic Committee, Spain 3 Department of Biology of Physical Activity University of Jyväskylä, Finland, 4 Department of Health and Exercise Science The College of New Jersey, Ewing, NJ, USA 5 Department of Kinesiology, Human Performance Laboratory University of Connecticut, Storrs, CT 06269-1110, USA 6 Institute of Sport, Northumbria University, United Kingdom. Address for Correspondence to: Mikel Izquierdo, Ph.D. Studies, Research and Sport Medicine Center Government of Navarra C/ Sangüesa 34 31005 Pamplona (Navarra) SPAIN + 34 948 292623 tel + 34 948 292636 fax mikel.izquierdo@ceimd.org 1 Articles in PresS. J Appl Physiol (January 12, 2006). doi:10.1152/japplphysiol.01400.2005 Copyright © 2006 by the American Physiological Society. by 10.220.33.6 on April 5, 2017 http://jap.physiology.org/ Downloaded from