BACKGROUND: Robot-assisted gait training (RAGT) is increasingly used in stroke rehabilitation. However, its comparative effectiveness across device types remains unclear. This study explored the effectiveness of RAGT compared to conventional treatment using real-world clinical data. METHODS: This retrospective cohort study included 2,947 patients with stroke who received inpatient rehabilitation at a single center between 2015 and 2022. Patients were divided into RAGT and conventional treatment groups. Functional improvement was defined as a gain of ≥ 1 point in the Functional Ambulation Category. Multivariable logistic regression and classification and regression tree (CART) models were applied to identify predictors of favorable outcomes (effectors) and to explore clinical decision-making for device selection. RESULTS: The RAGT group showed poorer baseline function but had a similar proportion of effectors (58.0%) compared to the control group (62.5%). Overall, RAGT was not associated with effector outcome versus control. Among RAGT devices, Morning Walk (adjusted odds ratio aOR = 3.25; 95% confidence interval CI: 1.79-5.87) and Exowalk (aOR = 4.42; 95% CI: 1.84-10.64) were significantly associated with higher odds of effector status compared to control, whereas Erigo was associated with lower odds (aOR = 0.58; 95% CI: 0.35-0.96). CART models identified clinical features, such as the Berg Balance Scale, the Mini-Mental Status Examination, and the Fugl-Meyer Assessment, as key predictors of effector status and revealed patterns in robotic device allocation. CONCLUSION: While RAGT was not superior to conventional treatment, certain devices were associated with improved gait function. These findings highlight the importance of tailoring robotic interventions.
Park et al. (Mon,) studied this question.
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