A-PLR: An Activity-Aware Assistant for Accurate and Usable Passive Leg Raise Tests in the Smart ICU. - Paul Chojecki; David Przewozny; Felix Tirschmann; Falko Schmid; Utz Jerzembeck; Detlef Runde; Kirsten Brukamp; Hug Aubin; Sebastian Bosse (IUI, 2026)