Why older people do not participate in leisure time physical activity: a survey of activity levels, beliefs and deterrents
Crombie, I. K., Irvine, L., Williams, B., McGinnis, A., Slane, P., Alder, E., & McMurdo, M. (2004). Why older people do not participate in leisure time physical activity: a survey of activity levels, beliefs and deterrents. Age and ageing, 33(3), 287-292. https://doi.org/10.1093/ageing/afh089