Grip strength cut-points from the Swiss DO-HEALTH population.

"Declarations Ethics approval and consent to participateDO-HEALTH has been approved by the appropriate ethics committee (Canton of Zurich, Zurich, Switzerland) and has therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. All persons gave their informed consent prior to their inclusion in the study. Consent for publicationAll authors gave final approval of the submitted version. Competing interestsThe authors declare no potential conflict of interest with respect to the authorship or publication of this article. LAA is currently an employee of MSD. Competing interests The authors declare no potential conflict of interest with respect to the authorship or publication of this article. LAA is currently an employee of MSD."

"Funding DO-HEALTH was funded by the Seventh Framework Program of the European Commission (grant agreement 278588), the University of Zurich (Chair for Geriatric Medicine and Aging Research), DSM Nutritional Products, Roche, NESTEC, Pfizer, and Streuli. The funding/supporting organizations had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; or decision to submit the manuscript for publication."

"Trial registration ClinicalTrials.gov Identifier: NCT01745263."