Physical activity has been shown to have various positive effects on HD patients . Some of the important benefits linked to exercise include an improvement in physical fitness , aerobic capacity , dialysis adequacy (measured as urea Kt/V) , quality of life , and reduced depressive symptoms .Walking can be considered as the most natural form of PA as it is easily performed by everyone except for the seriously disabled or very frail. Smartphones and their embedded computer technologies are increasingly being used to promote physical activity. Gamification presents itself as a promising approach to overcome a loss of interest, increase user engagement , raise the quality of health behaviors , and motivate users to use mHealth apps for a sustained period
Patients undergoing HD are mostly physically inactive and have reduced functional capacities compared to healthy individuals which contributes to a decreased quality of life and consequently increases the risk of mortality