Developing a Multi-Directional Lower-Limb Training System Toward Aging in Place Rehabilitation: A Preliminary Feasibility Study on Healthy Individuals

• Published in: IEEE transactions on neural systems and rehabilitation engineering Vol. 33; pp. 975 - 983
• Main Authors: Lee, Song Joo, Park, Kyung-Mi, Kim, Keun-Tae, Seo, Eun-Young, Gemechu, Duguma T., Kim, Olga
• Format: Journal Article
• Language: English
• Published: United States IEEE 2025
• Subjects: Adult; Aging; Aging - physiology; Aging in Place; Auditory-visual cue; Biomechanical Phenomena; Biomimetics; eccentric contraction; Electromyography; Exercise Therapy - instrumentation; Exercise Therapy - methods; Feasibility Studies; Female; Healthy Volunteers; Humans; Injuries; Lower Extremity - physiology; Male; Middle Aged; Muscle Contraction; muscle power; muscle strength; Muscle Strength - physiology; Muscle, Skeletal - physiology; musculoskeletal injury prevention and rehabilitation; Neuromuscular; pivoting control; Prevention and mitigation; Propioception; proprioception; Proprioception - physiology; Resistance Training - methods; Safety; Servomotors; therapeutic intervention; Training; Young Adult
• ISSN: 1534-4320; 1558-0210; 1558-0210
• DOI: 10.1109/TNSRE.2025.3545845

Not only improving muscle strength but also improving muscle power and neuromuscular control are important factors in improving lower limb function. In this study, a multi-directional lower-limb training system for aging -in-place rehabilitation was developed. The training system offers four distinct modes: muscle power training, pivoting neuromuscular training, muscle strength training using eccentric contractions, and proprioception training with evaluation. The feasibility of the training system was assessed through experiments conducted on healthy adults. Parameters such as mean of electromyography (EMG) peaks and pivoting instability during stepping tasks, and proprioceptive acuity in terms of pivoting angle error were tested using the system. By incorporating these diverse training modes, the training system can potentially be used to support clinicians in delivering tailored and effective subject-specific interventions for individuals with musculoskeletal and/or neuromuscular abnormalities toward aging-in-place rehabilitation.