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American Fitness Index ranks 100 largest cities based on 35 indicators  Despite a significant increase in Americans’ aerobic and strength

ACSM President Carrie Jaworski, MD, FACSM joined other members of the Global Alliance for the Promotion of Physical Activity in

The 2025 ACSM American Fitness Index has added new indicators: trail miles, splashpads, and pickleball and dual-use courts.
Policy can encourage physical activity across all levels. Three keys areas for policy application are public spaces, transportation and school-based

Rural-dwelling individuals have higher rates of physical inactivity and chronic diseases — as well as lower life expectancies and poorer

Learn about OSHA’s proposed rule that aims to protect workers from heat illness with hydration, rest breaks, and temperature monitoring.

Physical activity during pregnancy is recommended for its many benefits for both mother and fetus, including reducing the risk of pregnancy

The World Health Organization (WHO) states that 99% of the world’s population lives in places where air pollution exceeds recommended

We discuss whether recreational sports have become a relic of the past or could be a solution for the future

As the largest sports medicine and exercise science organization in the world, the American College of Sports Medicine® (ACSM) seeks to

GSSI Pre-Conference

The Physiology of Hydration: More Than Water Alone

This session explores the physiology of hydration through an integrated lens—examining how carbohydrate, sodium, flavor, and fluid interact to influence intake, absorption, retention, and performance. We’ll review current research on fluid balance, osmotic drivers, and palatability, highlighting mechanisms that underpin voluntary intake and thermoregulation. Attendees will gain insight into individualized strategies, including sweat profiling and timing approaches, to optimize euhydration and mitigate performance decrements associated with >2% body-mass loss. Practical applications will be linked to laboratory- and field-based research, ensuring translation from bench to field. This pre-conference equips you with evidence-based tools to support athlete hydration across diverse environments and sporting contexts. 

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  • Session 1: Sweating the detail: New insights on hydration considerations for athlete performance
    • Lewis James, PhD, Associate Professor in Human Nutrition in the School of Sport, Exercise and Health Sciences at Loughborough University
  • Session 2: Functional ingredients in fluid replacement beverages for athletes
    • Lindsay Baker, PhD, Director at the Gatorade Sports Science Institute
  • Session 3: The hydration toolkit: Practical approaches to athlete support
    • Floris Wardenaar, PhD, Associate Professor at the College of Health Solutions at Arizona State University