Journal of Strength and Conditioning Research Publish Ahead of Print DOI: 10.1519/JSC.0000000000000822 Ultraendurance Cycling in a Hot Environment: Thirst, Fluid Consumption and Water Balance Authors: Lawrence E. Armstrong 1 , Evan C. Johnson 2 , Amy L. McKenzie 1 , Lindsay A. Ellis 1 , and Keith H. Williamson 3 1 Department of Kinesiology, University of Connecticut, Human Performance Laboratory, Storrs CT 06269-1110; 2 Department of Health Human Performance & Recreation, University of Arkansas, Fayetteville AR 72701; 3 , Vinson Health Center, Midwestern State University, Wichita Falls TX 76309 E-mail addresses and telephone numbers of authors, as ordered above: lawrence.armstrong@uconn.edu (below); evancjohnson@gmail.com (202 431 4065); amy.mckenzie@uconn.edu (860 486 2543); lindsay.ellis@uconn.edu (860 486 2543); keith.williamson@mwsu.edu (940 397 4231) Corresponding Author: Lawrence E. Armstrong, Ph.D., FACSM University of Connecticut; Department of Kinesiology, Human Performance Laboratory, Unit 1110, 2095 Hillside Road, Storrs CT 06269-1110, USA. Office telephone: (860) 486 2647. Office FAX: (860) 486 1123. e-mail: lawrence.armstrong@uconn.edu This research was conducted at the Hotter ‘n Hell Hundred cycling event (HHH) in Wichita Falls, TX. The project was directed by Lawrence Armstrong, University of Connecticut Running Head: Thirst, Fluid Consumption and Water Balance (3 Tables, 2 Figures; 3,543 word count excluding abstract, references, tables and figures) ACCEPTED Copyright Ó Lippincott Williams & Wilkins. All rights reserved.