IMPACT OF ROBOTIC THERAPY AND WHOLE-BODY VIBRATION ON MOTOR RECOVERY AND BALANCE IN STROKE SURVIVORS: A REVIEW

Abstract

Background: Stroke remains a main cause of long-term disability, often resulting in motor deficits, impaired balance, gait dysfunction, and reduced functional independence. Recent advances in neurorehabilitation have introduced technology assisted modalities such as robotic therapy and whole-body vibration (WBV), both of which aim to enhance neuroplasticity and improve motor outcomes. However, comparative evidence regarding their effectiveness and potential combined benefits remains limited. Objective: To synthesize current evidence on the effects of robotic therapy and whole-body vibration on motor recovery and balance in chronic stroke survivors.

Methodology: A structured narrative review was conducted following a predefined synthesis model. Five major databases—Google Scholar, PubMed, Web of Science, and PEDro , were searched for studies published between Jan 2021 and Nov 2025. Eligible studies included RCT, non-randomized experiments, meta-analysis, systematic reviews and case control investigations evaluating robotic therapy, robotic assisted gait training (RAGT), or WBV in adult stroke survivors. Key outcomes extracted included gait performance, balance, spasticity, proprioception, and motor function.

Discussion: Thirty studies met the inclusion criteria (robotic therapy n = 18; WBV n = 12). Robotic therapy, including exoskeleton and end effector systems, consistently improved gait velocity, stride symmetry, dynamic balance, and functional ambulation, especially in subacute stages. Combined robotic approaches (e.g., robotics + FES or VR) demonstrated enhanced motor gains. WBV interventions yielded moderate improvements in balance, proprioception, spasticity reduction, and neuromuscular activation, particularly with side alternating platforms and variable frequency protocols. Combined therapy models demonstrated the greatest improvement (72%) compared with robotic therapy alone (65%) or WBV alone (48%). Across studies, both interventions were safe, feasible, and well tolerated. Evidence also highlighted that therapeutic effectiveness varied based on stroke chronicity, intervention intensity, and device type.

Conclusion: Robotic therapy and Whole body vibration are effective adjuncts to conventional physiotherapy, each offering unique benefits for post stroke motor recovery and balance. Robotic therapy optimizes task specific motor relearning, whereas WBV enhances neuromuscular activation and proprioceptive control. Their complementary mechanisms suggest that integrated or sequential use may yield superior functional outcomes. Future research should prioritize standardized protocols, long term follow up, and trials evaluating combined modality approaches to optimize clinical implementation in stroke rehabilitation.