Stroke rehabilitation as a field of research holds great promise in improving how patients recover. Unlike other organs, the brain’s neuroplasticity allows it to functionally reshape itself in beneficial ways. But it doesn’t do it on its own, so targeted interventions that require patient participation are key to optimal outcomes. There has been a slew of mechanical devices that promote arm movements in a structured way, focusing the training of the affected limb to improve therapy. While reasonably effective, such…