Journal of Strength and Conditioning Research Publish Ahead of Print DOI: 10.1519/JSC.0b013e3182606cd9 ACCEPTED Copyright © National Strength and Conditioning Association Unauthorized reproduction of this article is prohibited. The effects of different intensities and durations of the general warm-up on leg- press 1RM Renato Barroso¹*, Carla Silva-Batista¹*, Valmor Tricoli¹, Hamilton Roschel¹, Carlos Ugrinowitsch¹ * Both authors contributed equally to the study Institution: ¹School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil Corresponding author Renato Barroso Institution: School of Physical Education and Sport – University of São Paulo Address: Av. Prof. Mello Moraes, 65, Cidade Universitária – São Paulo, SP – Brazil Postal code: 05508-030 Phone: +55 11 9782-9004 barroso@usp.br Short title: General warm-up intensity and duration affects strength