Physical activity	Any bodily movement produced by the skeletal muscles that results in energy expenditure.
Exercise	A component of physical activity. Exercise is planned and structured.
Intervention	A treatment or therapy, in this instance aiming to increase participation in physical activity.
Pulmonary	In relation to, or affecting, the lungs.
Secretions	A substance produced by and discharged from a part of the body e.g. pulmonary secretions ‐ a substance produced by the lungs.
Prognostic	Relating to prognosis; predicting the likely outcome of a disease.
Suppurative	The formation and/or discharge of pus e.g. suppurative lung disease ‐ a disease process producing pus in the lungs.