Dose of physical activity, physical functioning and disability risk in mobility-limited older adults: Results from the LIFE study randomized trial

• Roger A. Fielding ,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: roger.fielding@tufts.edu

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

  http://orcid.org/0000-0003-2236-9020

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• Jack M. Guralnik,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Epidemiology and Public Health, University of Maryland School of Medicine, 4655 W. Baltimore Street, Baltimore, MD, United States of America

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• Abby C. King,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Health Research & Policy, and Stanford Prevention Research Center, Department of Medicine, Stanford University Medical School, Stanford, CA, United States of America

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• Marco Pahor,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

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

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• Mary M. McDermott,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Medicine, Northwestern University Feinberg School of Medicine, 750 N Lake Shore Drive, 10th Floor, Chicago, IL, United States of America

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• Catrine Tudor-Locke,

  Roles Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliations Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA, United States of America, Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA, United States of America

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• Todd M. Manini,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

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

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• Nancy W. Glynn,

  Roles Conceptualization, Investigation, Methodology, Project administration, Supervision, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States of America

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• Anthony P. Marsh,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, United States of America

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• Robert S. Axtell,

  Roles Methodology, Project administration, Supervision, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Department of Exercise Science, Southern Connecticut State University, New Haven, CT

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• Fang-Chi Hsu,

  Roles Data curation, Formal analysis, Methodology, Validation, Writing – original draft, Writing – review & editing

  Affiliation Department of Biostatistical Sciences, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, NC, United States of America

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• W. Jack Rejeski,

  Roles Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  Affiliation Center for Aging and Population Health, Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States of America

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• for the LIFE study group

  ¶Membership of the LIFE study group is provided in the Acknowledgments.

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