“…Among the included studies, 36 examined the effects of retirement on PA ( Supplementary Table S2d ). The absence of work activities provides an opportunity for free time; thus, it is not surprising to see that many studies showed an increase in leisure-time PA after retirement ( Brown, Heesch, & Miller, 2009 ; Eibich, 2015 ; Henkens, van Solinge, & Gallo, 2008 ; Holstila, Manty, Rahkonen, Lahelma, & Lahti, 2017 ; Insler, 2014 ; Koeneman et al, 2012 ; Kuvaja-Köllner, Valtonen, Komulainen, Hassinen, & Rauramaa, 2013 ; Lahti & Laaksonen, 2011 ; Midanik, Soghikian, Ransom, & Tekawa, 1995 ; Motegi, Nishimura, & Terada, 2016 ; Oshio & Kan, 2017 ; Sjösten et al, 2012 ; Stenholm et al, 2016 ; Syse et al, 2017 ).…”