Current guidelines recommend that adults undertake at least 150 minutes of moderate intensity physical activity or 75 minutes of vigorous physical activity per week. Regular physical activity improves many cardiovascular and metabolic health makers including beneficial effects on body weight, insulin sensitivity, glycaemic control, lipid profile, endothelial function and aerobic capacity. Despite overwhelming evidence that an inactive lifestyle leads to chronic disease and premature death, many adults fail to meet physical activity guidelines. Physical inactivity, defined as physical activity levels less than those required for optimal health and prevention of premature death, is a public health crisis. More than 1.4 billion adults worldwide classed as physically inactive, representing a large economic burden to healthcare systems. Clearly, new strategies are urgently needed to increase physical activity participation in the increasingly inactive population.

A number of behavioural and environmental factors associated with modern lifestyle including urbanisation, mechanisation and increased motorised transport are largely responsible for the high prevalence of physical inactivity, in addition to a number of common exercise barriers. Lack of time is cited as the main barrier to exercise as many individuals feel that increasing work hours and family commitments mean they cannot achieve the physical activity guidelines. Other common barriers within the general population include limited access to exercise facilities and appropriate equipment, difficulty with transportation, inadequate financial resources, bad weather and lack of motivation to engage in regular exercise. In an attempt to overcome many of the common barriers to exercise, members of our research group developed a virtually-monitored exercise intervention that used simple on-the-spot bodyweight exercises that could be performed in the participant's home without supervision or equipment. This home-based intervention was designed to be a practical and effective training strategy capable of producing metabolic and functional adaptions while removing many of the common barriers to exercise uptake and adherence such as "intimidating" gym environments, difficulty with access to facilities, travel time and financial constraints. Although these pilot studies successfully reduced common exercise barriers, more engaging exercise strategies are needed to increase levels of physical activity in the physically inactive population.

Inspired by current trends in the fitness market, the Swiss company Sphery Ltd. developed an immersive and motivating fitness exercise game (exergame), the "ExerCube". The ExerCube provides a full-body workout that concurrently challenges physical and cognitive functions as well as adapting to the individuals' fitness and skill level. Previous research has shown that the ExerCube is an effective training method that is more enjoyable than conventional exercise training. Development of a home-based version of the ExerCube has the potential to make this system available to more individuals, and to reduce major barriers to exercise, providing an attractive strategy to improve cardio-metabolic health of the population. Innovative home-based exergames are in demand given the increase in the number of people wanting to exercise at home due to the COVID-19 pandemic.