Principal Investigators

Dr. Richard Kreider

Dr. Richard Kreider

Professor and Executive Director, HCRF, Health and Kinesiology

Dr. Kreider serves as Professor, Executive Director of the Human Clinical Research Facility (HCRF), and Director of the Exercise & Sport Nutrition Lab at Texas A&M University. He served as Head of the Department of Health & Kinesiology and Thomas A. and Joan Read Endowed Chair for Disadvantaged Youth (2008 to 2017). He has over 30 years administrative experience serving as Co-Director/Director of the Wellness Institute & Research Center at Old Dominion University (1987 to 1993); Assistant Department Chair at the University of Memphis (1994 to 2002); Chair of the Department of Health, Human Performance, and Recreation and Director of the Center for Exercise, Nutrition & Preventive Health at Baylor University (2002 to 2008); Head of the Department of Health & Kinesiology (2008 to 2017), and Executive Director of the HCRF (2017 to present). Under his leadership, the departments at Baylor University and Texas A&M University experienced extraordinary growth, development, improved teaching and research facilities, enhanced scholarly productivity, improvement in national rankings, and international impact. Dr. Kreider is a member of the graduate faculty in the Department of Health & Kinesiology and Department of Nutrition and Food Sciences. He has conducted numerous studies on nutrition and exercise and has published three books, over 175 peer-reviewed articles and book chapters, over 440 research abstracts, and 150 health and fitness related articles. According to Google Scholar, his work has been cited over 9,500 times in the literature (h-index 51, i10-index 123). Dr. Kreider and his students have presented over 600 presentations at regional, national, and international professional conferences. Dr. Kreider is a Fellow of the American College of Sport Medicine (FACSM); an active member of the National Strength and Conditioning Association (NSCA); a co-founder, board member, and Fellow of the International Society of Sports Nutrition (FISSN); founding Editor-In-Chief of the BioMed Central – Journal of the International Society of Sports Nutrition (IF 2.066); Fellow of the American College of Nutrition (FACN); Board Member of the American Kinesiology Association (AKA); elected Fellow of the National Academy of Kinesiology (FNAK, #568); and, member of the American Public Health Association (APHA). Dr. Kreider has received over 22 million dollars as a PI, Co-PI and/or consultant in external funding to support research related to the role of exercise and nutrition on health, disease, rehabilitation, performance, and/or health disparities/equity. Dr. Kreider has been a featured speaker at numerous conferences internationally and serves as a scientific consultant for industry and national professional organizations.

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Dr. Nicolaas Deutz

Dr. Nicolaas Deutz

Professor, Health and Kinesiology

Experience : Dr. Nicolaas Deutz, MD, PhD currently serves as Director for the Center for Translational Research in Aging and Longevity (CTRAL). For more than 30 years, his research background and expertise focus on nutrition, metabolism, and physiology studies involving the use of stable isotope methodologies, both in humans and animals. Dr. Deutz has extensive experience with isotopic calculations, validation and data interpretation. The stable isotope approaches are used in several studies to unravel the metabolic changes in patients with chronic diseases (i.e., chronic obstructive pulmonary disease, cancer, cystic fibrosis, chronic heart failure, obstructive sleep apnea, mild cognitive impairment and dementia, autism spectrum disorder). This research leads to new insights in protein and amino acid kinetics in subjects with chronic disease and resulted in specific recommendations to nutritional supplements as method for reducing muscle wasting. Recently, he started studying the anabolic effects of specialized nutritional supplements in different chronic diseases and models of disease. Using translational approaches is a logical extension of the body of his research in the field of protein and amino acids metabolism. Education: Dr. Deutz obtained his MD and PhD at the University of Amsterdam, Netherlands. He is a medical physiologist and Nutrition Physician Specialist. Learn more about Dr. Deutz by visiting his page on CTRAL’s website

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Dr. Marielle Engelen

Dr. Marielle Engelen

Associate Professor, Health and Kinesiology

Experience : Dr. Marielle Engelen, PhD, Associate Professor, currently serves as CoDirector and Head of Clinical Research for the Center for Translational Research in Aging and Longevity (CTRAL). She is an expert in the field of nutrition and metabolism in chronic diseases. Her research focuses on the metabolic alterations underlying involuntary weight loss and muscle wasting in chronic inflammatory diseases, involving the use of stable isotope methodologies, and the effects of dietary modulation and exercise intervention to restore metabolism and physical performance in these patients. As such, she has conducted and supervised many acute studies and coordinating human clinical trials, examining the effects of protein and amino acid intervention in healthy elderly and in those with chronic wasting diseases (i.e., chronic obstructive pulmonary disease, cancer, cystic fibrosis, chronic heart failure, obstructive sleep apnea, cognitive impairment). In addition, she has the expertise in methodology and techniques to examine body composition, muscle function, physical performance, gut and cognitive function, and wellbeing. Education: Dr. Engelen studied Health Sciences (Movement Sciences) at Maastricht University, Maastricht, the Netherlands. In 1994, she worked as Research Associate at the Dept. of Respiratory and Critical Care Medicine at Harbor UCLA Medical Center, Torrance, CA (director: Karlman Wasserman, MD, PhD). After she returned to the Netherlands, she worked as a PhD student at the Dept. of Respiratory Medicine at the Academic Hospital Maastricht and obtained her PhD in 2000 (title thesis: “Muscle wasting in COPD: a metabolic and functional perspective”), and subsequently worked as a postdoctoral fellow at the Dept of Surgery. Learn more about Dr. Engelen by visiting her page on CTRAL’s website

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Melinda Sheffield-Moore

Melinda Sheffield-Moore

Professor and Department Head, Health and Kinesiology

Dr. Sheffield-Moore holds a long and distinguished career in both the education and health sectors. After earning her master’s degree in exercise physiology from the University of Houston, she spent four years working at NASA Johnson Space Center as an experiment support scientist. She later earned her doctorate in human biogenetics from Ball State University, training with Dr. David Costill — one of the pioneers of exercise physiology.

She completed her National Institute of Health (NIH) funded postdoctoral training at the University of Texas Medical Branch within the Department of Surgery and Shriners Burns Hospital. While there, she completed her training in human metabolism and skeletal muscle biology. For the past 20 years, Dr. Sheffield-Moore has worked at the University of Texas Medical Branch at Galveston (UTMB) in the Department of Internal Medicine. During her time at UTMB as a professor, she has held a number of leadership roles including being the director of the Translational Technologies Key Resource for the Institute of Translational Sciences and a program director of the Institute of Translational Sciences Clinical Research Center.

Dr. Sheffield-Moore has been continuously funded by the National Institutes of Aging, National Cancer Institute, NASA, and through foundation grants to support her human clinical research program in areas of aging, cancer and traumatic brain injury.