RT Journal Article T1 Perceived distress in assisted gait with a four-wheeled rollator under stress induction conditions A1 Díaz-Boladeras, Marta A1 Parra-Llanas, Xavier A1 Fernández-Carmona, Manuel A1 Catalá, Andreu A1 Urdiales-García, Amalia Cristina A1 Musté, Marta A1 Pérez, Elsa A1 Barco, Álex K1 Estrés (Fisiología) K1 Evaluación AB In assisted ambulation, the user’s psychological comfort has a significant impact not only on acceptability of mobility aids but also on overall gait performance. Specifically, in the case of rollators, negative states such as distress may result in balance loss, inefficient manoeuvres, and an increased risk of falling. This paper presents a pilot study to investigate the effect of distress on rollator assisted navigation. To achieve this goal, a novel test protocol is proposed to assess distress while walking with a rollator, using the Self-Assessment Manikin (SAM) questionnaire. First, the participant completes a standardised visual stress induction test and fills in a SAM questionnaire on the dimensions of arousal and valence, to establish personal benchmarks. Then, they complete a course consisting of four navigation tasks with different levels of difficulty that affect the rollator manoeuvrability, filling in a SAM questionnaire after each task. An experiment including 25 healthy volunteers has been completed. Our preliminary results show that stressors like uneven or sloping surfaces increase perceived stress, whereas the shape of the trajectory does not significantly affect stress. The ultimate purpose of this work is to validate a performance-oriented protocol to investigate the dynamics of stress response in assisted walk and to train automatic stress detection systems. PB Taylor and Francis YR 2023 FD 2023 LK https://hdl.handle.net/10630/34190 UL https://hdl.handle.net/10630/34190 LA eng DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026