Pre-habilitation (ii): time for a patient-doctor contract?

The author discusses the need of promoting pre-habilitation, in which patients manage their physical fitness so as to mitigate old age related physiological ailments. The topics discussed include use of pre-habilitation for reducing burden on healthcare resources needed for old and obese population, pre-habilitation programmes as a clinical intervention measures for older patients undergoing major surgery, and pre-habilitation for promoting healthier lifestyle.