Evidence-based risk assessment and recommendations for physical activity clearance: established cardiovascular disease (1) (1) This paper is one of a selection of papers published in this Special Issue, entitled Evidence-based risk assessment and recommendations for physical activity clearance, and has undergone the Journal’s usual peer review process - Thomas, S G; Goodman, J M; Burr, J F (Appl Physiol Nutr Metab, 2011)