Heat preparation and nutrition strategies for a 100-mile ultramarathon in extreme heat: A questionnaire study at the Western States Endurance Run

Journal of science and medicine in sport 2026 Open access

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Authors: Loïs Mougin, Richard Stennett, Brett R. Ely, Lee Taylor, William M. Adams, Richard C. Blagrove, Danny P. Longman, Stephen A. Mears
DOI: 10.1016/j.jsams.2026.05.014
Cited by: 1
References: 30

Abstract

Objectives This study examined heat preparation, nutritional strategies, and gastrointestinal (GI) symptoms of runners competing in the 2025 Western States Endurance Run (WSER), a 100-mile ultra-marathon with extreme heat exposure. Design 1. Cross-sectional, 2. Prospective observational study. Methods Pre- and post-race surveys (n = 106 pre-race; n = 66 post-race) collected data on demographics, heat experience, heat acclimat(isat)ion, nutrition and hydration strategies, and race-related symptoms. Finishers were grouped by race time (

Fields of Study & Subjects

Thermoregulation and physiological responses Muscle metabolism and nutrition Exercise and Physiological Responses

Publication details

Journal / source
Journal of science and medicine in sport
Publisher
Elsevier BV
Publication date
1 June 2026
Language
EN