  In a world where in-person context transitions more into remote and hybrid
concepts, we should consider new concepts of interaction in health and
rehabilitation and what advantages and disadvantages they bring. One of the
rising topics is mixed reality, where we can use the advantages of immersive
3D, 360-degree environments. Meanwhile, physical activity is further decreasing
and with it negative effects increase through sedentary behaviour or wrong and
untrained movements. In this position paper, we discuss these new risks and
potential benefits of mixed reality technology when used for rehabilitation and
fitness. We conclude with suggesting better feedback and guidance for physical
movement and tasks at home. Improving feedback and guidance for participants
could be achieved through using new technologies like virtual reality and
motion tracking.
