About the Authors

Kevin S. Heffernan

ksheffer@syr.edu

Affiliation Department of Exercise Science, Human Performance Laboratory, Syracuse University, Syracuse, New York, United States of America

Todd M. Manini

Affiliation Department of Aging and Geriatric Research, University of Florida, Gainesville, Florida, United States of America

Fang-Chi Hsu

Affiliation Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest University Health Sciences, Winston-Salem, North Carolina, United States of America

Steven N. Blair

Affiliation Arnold School of Public Health, Department of Exercise Science, University of South Carolina, Columbia, South Carolina, United States of America

Barbara J. Nicklas

Affiliation J. Paul Sticht Center on Aging, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America

Stephen B. Kritchevsky

Affiliation J. Paul Sticht Center on Aging, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, United States of America

Anne B. Newman

Affiliation Center for Aging and Population Health, Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Kim Sutton-Tyrrell

Affiliation Center for Aging and Population Health, Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

Timothy S. Church

Affiliation Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, United States of America

William L. Haskell

Affiliation Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, California, United States of America

Roger A. Fielding

Affiliation Nutrition, Exercise Physiology and Sarcopenia Laboratory, Jean Mayer United States Department of Agriculture Human Nutrition Research Center on Aging at Tufts University, Boston, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SNB BJN SBK ABN KST TSC WLH RF. Performed the experiments: SNB BJN SBK ABN KST TSC WLH RF. Analyzed the data: KSH TMM FCH. Wrote the paper: KSH TMM FCH RF.