Interactive effect of socio-eco-demographic characteristics and perceived physical activity barriers on physical activity level among older adults.

"Declarations Ethics approval and consent to participateThe study procedures were approved by the Institutional Review Committee of the University of Guilan. Participants gave written informed consent. Consent for publicationAll authors have reviewed the manuscript and consent to the submitted version. Competing interestsThe authors of the present study declare that there is no conflict of interest to report. Competing interests The authors of the present study declare that there is no conflict of interest to report."

"Funding The study was supported by a grant from General Directorate of Sports and Youth Affairs of Guilan Province, Centre for Strategic Studies and Researches, Iran’s Ministry of Sports and Youth Affairs, funder approval no. 220/120/22934."