Hot Topic | Physiological Assessments Using Muscle Near-Infrared Spectroscopy (mNIRS)

What is muscle near-infrared spectroscopy (mNIRS)? Muscle near-infrared spectroscopy (mNIRS) is a non-invasive technique that can be used to measure the changes in blood volume and oxygenation responses within the smaller diameter blood vessels in skeletal muscle. This is possible because near infrared light (~700-900 nm) emitted into biological tissues can help determine the oxygenation […]

Personalized Fitness Plans via Mobile Health Technology

As you look around your home, you may spot devices like smartphones, tablets, smart TVs or even fitness tools like a smart gym, a smart soccer ball, or a virtual reality exercise bike. These devices not only keep us connected or entertained but also transform how we approach health and fitness. Moreover, these fall under […]

Capitalizing on Accelerometry to Measure Performance Fatigability in Older Adults

Fatigability is not a new concept in the exercise physiology realm. Researchers have long paired physical activity measures with ratings of perceived exertion or contractions of isolated muscle groups during tasks to quantify self-reported or muscle fatigability. Of late, the term “fatigability” has evolved and is widely used in aging research to represent a whole-body trait of […]

#EatingHealthy: Can Nutrition Apps Do the Job?

We’ve all seen the increase in the number of available apps to monitor lifestyle behaviors such as physical activity, sleep and stress. There is also clear interest in apps that monitor diet and nutrition. So, how do you know if a nutrition app will be helpful? In the last few years, millions of users have downloaded and […]

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