Major surgery has been linked to running a marathon as in both represent large endeavours where the body will experience an increase in demands to supply the necessary energy. It has been alledged that, as one would train to prepare for a marathon, the same should be applied to surgery. The process of getting ready and/or fitter for surgery is frequently referred to as prehabilitation and it usually involves interventions on improving nutrition and diet, getting fit and improve emotional wellness. Prehabilitation can improve the recovery after surgery and reduce the time spent in hospital afterwards. This research seeks to determine whether a home based program of increased physical activity and breathing training can improve patients' physical and respiratory function in preparation for lung cancer surgery.