Open Menu Close Menu Open Search Close Search
Roger A. Fielding

Associate Center Director, Lead Scientist, Senior Scientist
Nutrition, Exercise Physiology, and Sarcopenia Team
(617) 556-3016

Roger A. Fielding, Ph.D. is Associate Director of the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University and serves as Leader and Senior Scientist of the Nutrition, Exercise Physiology, and Sarcopenia (NEPS) Team. He is also Professor of Nutrition at the Friedman School of Nutrition Science and Policy, Professor of Medicine at Tufts University School of Medicine and the Associate Director of the Boston Claude D. Pepper Older Americans Independence Center. Dr. Fielding is an internationally known researcher who studies the underlying mechanisms contributing to the age-associated decline in skeletal muscle mass, the resultant impact on function, and the potential role of exercise, nutrition, physical activity and other therapies on attenuating this process. He has published over 200 peer-reviewed papers with over 8,000 citations and has conducted numerous cross sectional, longitudinal, and intervention studies examining the role of skeletal muscle power on physical performance in older adults. Dr. Fielding is an associate editor of the Journals of Gerontology: Medical Sciences, Calcified Tissues International, and Musculoskeletal Research. He has also served as a reviewer on numerous NIH study sections and was elected to the NIH/CSR College of Reviewers. In 2015, he received the Olof Johnell Science Award from the International Osteoporosis Foundation.


M.A., Physical Education/Human Bioenergetics, Ball State University, 1985
Ph.D., Human Nutrition Science, Tufts University, 1993

Academic Appointments
Professor of Nutrition, Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy at Tufts University
Professor of Medicine, Tufts University School of Medicine

Current Research Projects
• USDA-ARS: Sarcopenia, Nutrition, and Physical Activity
• ICON: Characterising SARcopenia and sarcopenic obesity in patients Aged 65 years and over, at risk of mobility disability.
• Astellas Pharma Global Development, Inc.: A Phase 1 b Study to Assess the Anti-fahgability Effect of CK-2127107 in Elderly Male and Female Subjects with Limitations in Mobility

• Pronutria Biosciences, Inc. (now Axcella Health Inc.): Assessment of Fractional Synthetic Rate
• Lonza, Inc.: The effect of L-Carnitine and Creatine on skeletal muscle protein synthesis in young and older humans