Received: 15 March 2019
Accepted: 2 July 2019
First Online: 27 July 2019
Ethics approval and consent to participate
: There was no Ethical approval required as the study was a systematic review. This review was registered at Prospero with the ID: CRD42017068912.
: All authors have approved the manuscript and agree with its submission to “European Review of Aging and Physical activity”.
: The authors declare that they have no competing interests.