Physical activity is important for people's health. The emphasis over the last two decades has been on moderate to vigorous exercise when designing activity and exercise programmes for adults with stroke. Emerging evidence suggests that sedentary behaviour is distinctly different from a lack of moderate to vigorous physical activity and has independent and different physiological mechanisms. In the general population, reduced physical activity is associated with a shorter life expectancy and a higher risk of developing type II diabetes, cardiovascular disease and some types of cancer [1,2]. To reduce these risks, guidelines recommend at least 30 min of moderate-intensity physical activity on at least five days a week [2]. For decades, exercise professionals have promoted moderate-to vigorous-intensity levels of physical activity.Stroke rehabilitation often focuses on improving or maintaining the aerobic fitness level, improving cerebrovascular health and brain perfusion. For the prevention of recurrent stroke and acute cardiac events in stroke survivors, modification of multiple risk factors is recognized as the cornerstone of initiatives. Physical activity can modify several predisposing vascular risk factors like high blood pressure, abnormal blood lipids, HDL cholesterol, obesity and diabetes mellitus [3]. So, it is no surprise that the American Heart Association recommends that stroke survivors should participate in structured physical activity programmes to improve health [4].Although it is well-established that physical activity is important for one's health, recent evidence suggests that this is only part of the story. Sedentary behaviour and physical activity had previously been seen as two sides of the same coin. They are, however, different constructs in the activity continuum and have independent effects on health. Recent studies have consistently shown that a large amount of sedentary behaviour, as distinct from a lack of moderate to vigorous physical activity, is also associated with an increased risk of coronary heart disease, hypertension, diabetes, obesity, mortality and some cancers in the general population [5,6]. Sedentary behaviour is characterized as any behaviour with extremely low-energy cost. Activity-related energy expenditure is quantified using metabolic equivalents of tasks (METs) [7]. The adverse health outcomes associated with sedentary behaviour (i.e. sitting/reclining) are independent of the total amount of moderate to vigorous physical activity performed [8]. It is increasingly clear that the amount of sedentary behaviour people engage in has a large impact on health, regardless of their level of physical activity [8]. It is therefore no surprise that the interest in decreasing sedentary behaviour