A Multimodal Approach to Ergonomic Assessment Fusing an IMU-Based RULA and Surface EMG System. - Ratikanlaya Tanthuwapathom; Udomporn Manupibul; Wimonrat Jarumethitanont; Weerawat Limroongreungrat; Songpol Ongwattanakul; Warakorn Charoensuk (IEEE Access, 2026)