Flex RCT

The aim of this Randomised Controlled Trial is to test the impact of Vire app and a 6 month Flex programme to decrease sitting time and increase physical activity in cardiac rehabilitation participants to reduce the risk of repeat cardiac events.


A multi-centre randomised controlled trial will be conducted over a total of 24-months within the Canberra area, recruiting 144 participants. Participants will be assessed on admission to cardiac rehabilitation, and at 6 and at 12 months post intervention for re-admission to hospital. Results will inform future research in this area, potentially leading to a decrease in hospital admissions and morbidity in those with heart disease. If successful, Flex will be promoted as an adjunct to traditional cardiac rehabilitation and in other clinical rehabilitation programs.


This project introduces a 6 month localised Flex programme, similar to the one developed in the ToDo-CR study. It uses personalised analytics to interpret important behavioural aspects: physical activity, variety in situational context and social opportunity. The approach is unique in that it integrates ‘real time’ information in space (geographical location) for generating and suggesting context specific actionable micro behaviours (Do’s), based on Australian physical activity and cardiac rehabilitation guidelines. We evaluated ToDo-CRs acceptance and ability to decrease sitting time in cardiac rehabilitation participants. 

Study design

The randomised controlled trial (RCT) will recruit participants from the cardiac rehabilitation (CR) programs at the Canberra hospital, Calvary and National Capital Private Hospitals. Randomisation will be computerised and participants will be allocated on a 1:1 ratio to cardiac rehabilitation plus the behavioural smartphone app or cardiac rehabilitation (usual care). Outcome assessors will be blinded to group assignment throughout the study. Participants will be assessed on admission to the traditional phase II hospital-based CR program. Randomised group status will be revealed to participants and clinical staff only after completion of baseline measures. Participants’ will complete follow-up assessments at 6 (end of Flex programme) and 12-months from beginning the CR program.


For this research project Onmi partners with University of Canberra, Canberra Hospital, Calvary Hospital, and National Capital Private Hospital. The study is funded by the Medical Research Future Fund (MRFF).