%0 Journal Article %B British Journal of Sports Medicine %D 2011 %G eng %M 21926078 %P 1079-80 %T Is exercise effective in promoting mental well-being in older age? A systematic review %V 45 %7 2011/09/20 %8 229478235459 %@ 1473-0480 (Electronic)0306-3674 (Linking)