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Douglas J.  Casa, Ph.D. - University of Connecticut. Storrs, CT, US

Douglas J. Casa, Ph.D. Douglas J.  Casa, Ph.D.

Professor, Department of Kinesiology | University of Connecticut


Focused on prevention of sudden death in sport, exertional heat stroke, wearable technologies, hydration, and maximizing athletic training.


For the past 17 years, Dr. Casa has worked toward his goals at the Department of Kinesiology, College of Agriculture, Health, and Natural Resources, University of Connecticut. During this time he has published more than 200 peer-reviewed publications/book chapters and presented more than 400 times on subjects related to exertional heat stroke, heat-related illnesses, preventing sudden death in sport, and hydration. Dr. Casa has successfully treated 265 cases of exertional heat stroke (with 0 fatalities). In October 2005 and 2010 the Department of Kinesiology doctoral program at the University of Connecticut was ranked number 1 in the country by the National Academy of Kinesiology (for 20005-2105). Additionally, in September 2010 the National Research Council ranked the faculty in the Department of Kinesiology number one for research productivity.

Dr. Casa is CEO of Korey Stringer Institute at UConn, and was named full professor of kinesiology in August 2010. In 2008 he was the recipient of the medal for distinguished athletic training research from the National Athletic Trainers’ Association. In 2016 Dr. Casa received the highest honor in his field when he was named a fellow of the National Academy of Kinesiology (FNAK #556). He was named a fellow of the National Athletic Trainers’ Association in 2008. He received the Sayers “Bud” Miller Distinguished Educator Award from the National Athletic Trainers’ Association in 2007 and has been a fellow of the American College of Sports Medicine since 2001. In 2011 he was inducted into the University of Florida alumni hall of fame. He has been a lead or co-author on over 15 sports medicine (ACSM, NATA) position statements/consensus statements/roundtables related to heat illness, hydration, and preventing sudden death. He is an associate editor of the Journal of Athletic Training, Journal of Science and Medicine in Sports and on the editorial board of Current Sports Medicine Reports, Journal of Sport Rehabilitation, and the Journal of Strength and Conditioning Research. Dr. Casa has worked with numerous media outlets across the country in discussing his research including the NBC Today Show, Good Morning America, ESPN, CNN, PBS, Sports Illustrated, USA Today, Wall Street Journal and the New York Times.

Areas of Expertise (10)

Elite Atheletes Hydration/Dehydration Fluid-Electrolyte Balance Exertional Heat Illnesses Wearable Technologies Preventing Sudden Death Heat Stroke Exercise & Heat Thermoregulation Athletic Training

Education (3)

University of Connecticut: Ph.D. 1997

University of Florida: M.S. 1993

Allegheny College: B.S. 1990

Affiliations (4)

  • Journal of Athletic Training, Section Editor
  • Journal of Sport Rehabilitation, Editorial Board
  • Journal of Science and Medicine in Sport
  • Current Sports Medicine Reports, Editorial Board

Accomplishments (3)

Fellow (professional)

National Academy of Kinesiology

President’s Lecturer (professional)

American College of Sports Medicine National Meeting

NSCA President’s Award (professional)

NSCA President’s Award




Douglas J.  Casa, Ph.D. Publication



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What happens when you get heat stroke? - Douglas J. Casa


Media Appearances (4)

What You Need to Know About Heat Stroke

U.S. News & World Report  print


The length of time that heat stroke affects someone is highly variable, says Douglas Casa, chief executive officer of the Korey Stringer Institute at the University of Connecticut in Storrs, Connecticut. The institute is named after a Minnesota Vikings offensive lineman who collapsed and died of heat stroke after a practice in July 2001. If a heat stroke victim's core body temperature is brought below 104 degrees Fahrenheit within 30 minutes, he or she typically will recover completely and resume normal activities in two to four weeks, Casa says. If the core body temperature isn't cooled down quickly enough, a heat stroke victim could suffer long-term complications such as cognitive problems, like memory loss; an intolerance and inability to cope with heat; muscle damage; and kidney and liver problems.

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Cold Workout Classes Are a New Fitness Trend—and Science Says They're Legit

Shape magazine  print


Quick science lesson: When you start to exercise, experts say your core body temperature can reach 102 degrees Fahrenheit or higher within minutes. Sweating, a process of evaporation, is how the body cools itself down. "When a sweat droplet evaporates, it lowers your skin temperature, which helps pull the heat out of your body more efficiently," says Doug Casa, Ph.D., CEO of the Korey Stringer Institute, which provides research on exertional heat stroke prevention.

That's not a sign of how hard you're working. That's just a physical reaction—one you're just as likely to experience during a HIIT workout or during a stroll on a hot summer day.

But what if your body didn't have to cool itself down during exercise? You'd actually perform better, says Casa.

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Sports Study: High School Athletes Not Being Fully Protected

The New York Times  online


"Casa notes that progress is slow because most states only make a change after a tragedy. But he stresses that the policies KSI promotes are not difficult to adopt." (...)

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Korey Stringer's death lingers on a final trip to Mankato

ESPN  online


"The big thing is that we know death from heat stroke is 100 percent preventable," said Douglas Casa, the CEO of KSI and a professor of kinesiology at the University of Connecticut. (...)

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Articles (5)

Top 10 Research Questions Related to Preventing Sudden Death in Sport and Physical Activity Research Quarterly for Exercise and Sport

Rachel K. Katch, Samantha E. Scarneo, William M. Adams, Lawrence E. Armstrong, Luke N. Belval, Julie M. Stamm & Douglas J. Casa


Participation in organized sport and recreational activities presents an innate risk for serious morbidity and mortality. Although death during sport or physical activity has many causes, advancements in sports medicine and evidence-based standards of care have allowed clinicians to prevent, recognize, and treat potentially fatal injuries more effectively. With the continual progress of research and technology, current standards of care are evolving to enhance patient outcomes. In this article, we provided 10 key questions related to the leading causes and treatment of sudden death in sport and physical activity, where future research will support safer participation for athletes and recreational enthusiasts. The current evidence indicates that most deaths can be avoided when proper strategies are in place to prevent occurrence or provide optimal care.

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Biomarkers in Sports and Exercise: Tracking Health, Performance, and Recovery in Athletes The Journal of Strength and Conditioning Research

Lee, Elaine C. Ph.D; Fragala, Maren S. Ph.D; Kavouras, Stavros A. Ph.D; Queen, Robin M. Ph.D; Pryor, J. Luke Ph.D; Casa, Douglas J. Ph.D., ATC


Biomarker discovery and validation is a critical aim of the medical and scientific community. Research into exercise and diet-related biomarkers aims to improve health, performance, and recovery in military personnel, athletes, and lay-persons. Exercise physiology research has identified individual biomarkers for assessing health, performance, and recovery during exercise training. However, there are few recommendations for biomarker panels for tracking changes in individuals participating in physical activity and exercise training programs.

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Identification and Treatment of Exertional Heat Stroke in the Prehospital Setting Journal of Emergency Medical Services

Neha Raukar, Renée S. Lemieux, Douglas J. Casa, Rachel K. Katch


A 15-year-old football player collapses during practice on a day when the heat index is 114 degrees F.
Bystanders move the patient to the shade and EMS is called. Upon arrival, paramedics jump in to assist the bystanders, who are removing the boy's pads, uniform and equipment.

The transport of the patient to the hospital took 15 minutes. In the ED, the patient's Glasgow coma scale was 5, and his rectal temperature was 107.3 degrees F. He is cooled with IV fluids and cool water misting.

The patient died on the fourth day of hospitalization as a combined consequence of the effects of an exertional heat stroke (EHS), including, hepatorenal failure, sepsis, coagulopathy, and cardiopulmonary collapse.

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LPS-Induced TLR4 Activation During Prolonged Running and Cycling Events in Hot and Humid Environments The Federation of American Societies for Experimental Biology

Yuri Hosokawa, Jacob R Zinn, Skylar Wright, Madeline Leduc, Emily Howard, Joseph J Bivona, Douglas J Casa, Rebecca L Stearns, Robert A Huggins, William M Adams, John Jardine, Robert J Davis, Lawrence E Armstrong, Jakob Vingren, Hui Ying Luk, Danielle Levitt, Matthew S Ganio, Brendon P McDermott, Keith Williamson6, Amy L McKenzie, Colleen X Munoz, Laura J Kunces, and Elaine C Lee


We aimed to test the hypothesis that competing in prolonged cycling (50–100 mile event) or high-intensity running (7 mile race) events in hot and humid environments (heat index>80°F) result in LPS-induced TLR4 activation and changes in cellular gene expression.

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Comparing Ad Libitum and Prescribed Fluid Replacement to Fluid Balance Following Exercise-Induced Dehydration The Federation of American Societies for Experimental Biology

William M Adams, Lesley W Vandermark, Luke N Belval, Elaine C Lee, Lawrence E Armstrong, Lindsay J DiStefano and Douglas J Casa


Objective: To test the hypothesis that prescribed fluid replacement is more effective at replacing fluid losses than ad libitum replacement following exercise-induced dehydration.

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