This study addresses force/movement control in a dynamic "hybrid" task: the master sub-task is continuous manual tracking of a target moving along an eight-shaped Lissajous figure. with the tracking error as the primary performance index; the slave sub-task is compensation of a disturbing curl viscous field. compatibly with the primary performance index. The two sub-tasks are correlat... https://crowssportes.shop/product-category/mouthguard/