Roger A. Fielding, Ph.D.

Senior Scientist and Director
Nutrition, Exercise Physiology, and Sarcopenia Laboratory
Phone: (617) 556-3016
Fax: (617) 556-3083




MA, Physical Education/Human Bioenergetics, Ball State University, 1985
PhD, Human Nutrition Science, Tufts University, 1993

Research Focus
Role of nutrition and exercise on age-related changes in skeletal muscle growth capacity. Impact of nutrition and exercise on physical functioning and disability in older adults.

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

Selected Professional Affiliations
Associate Director Boston Claude D. Pepper Older Americans Independence Center
Fellow, Gerontological Society of America
Member, American Society of Nutrition
Member, American Physiological Society
Member, American College of Sports Medicine

Selected Publications

Chale A., Cloutier G.J., Hau C., Phillips E.M., Dallal G.E., Fielding R.A. Efficacy of whey protein supplementation on resistance exercise-induced changes in lean mass, muscle strength, and physical function in mobility-limited older adults. The journals of gerontology Series A, Biological sciences and medical sciences 2013;68(6):682-90

Pahor M., Guralnik J.M., Ambrosius W.T., Blair S., Bonds D.E., Church T.S., Espeland M.A., Fielding R.A., Gill T.M., Groessl E.J., King A.C., Kritchevsky S.B., Manini T.M., McDermott M.M., Miller M.E. Effect of structured physical activity on prevention of major mobility disability in older adults: the LIFE study randomized clinical trial. JAMA 2014;311(23):2387-96

Rivas D.A., Lessard S.J., Rice N.P., Lustgarten M.S., So K., Goodyear L.J., Parnell L.D., Fielding R.A. Diminished skeletal muscle microRNA expression with aging is associated with attenuated muscle plasticity and inhibition of IGF-1 signaling. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2014;13:14-254490

Lustgarten M.S., Price L.L., Chale A., Fielding R.A. Metabolites related to gut bacterial metabolism, peroxisome proliferator-activated receptor-alpha activation, and insulin sensitivity are associated with physical function in functionally-limited older adults. Aging cell 2014;13(5):918-25

A. Trombetti, K. F. Reid, M. Hars, F. R. Herrmann, E. Pasha, E. M. Phillips, and R. A. Fielding. Age-associated declines in muscle mass, strength, power, and physical performance: impact on fear of falling and quality of life. Osteoporos  Int. 2016; 27(2): 463–471.

All Publications