Physical Activity in Non-Frail and Frail Older Adults

• F. Marijke Jansen,

  Affiliations Department of Urban Environment and Safety, TNO, Utrecht, The Netherlands, Human geography and Planning, Utrecht University, Utrecht, The Netherlands

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• Rick G. Prins,

  Affiliation Department of Public Health, Erasmus MC, Rotterdam, The Netherlands

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• Astrid Etman,

  Affiliation Department of Public Health, Erasmus MC, Rotterdam, The Netherlands

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• Hidde P. van der Ploeg,

  Affiliation Department of Public and Occupational Health, EMGO Institute for Health and Care Research, VU University Medical Center Amsterdam, Amsterdam, The Netherlands

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• Sanne I. de Vries,

  Affiliations Department of Healthy Living, TNO, Leiden, The Netherlands, Healthy Lifestyle in a Supporting Environment, The Hague University of Applied Sciences, The Hague, The Netherlands

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• Frank J. van Lenthe,

  Affiliation Department of Public Health, Erasmus MC, Rotterdam, The Netherlands

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• Frank H. Pierik

  * E-mail: frank.pierik@tno.nl

  Affiliation Department of Urban Environment and Safety, TNO, Utrecht, The Netherlands

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