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About

Ryuji Kaji is a leading authority in movement disorders, with a particular focus on spastic paresis and its treatment. His work challenges conventional thinking by redefining spastic paresis as a treatable movement disorder rather than a fixed consequence of neurological injury. Kaji’s most cited paper (2024, 16 citations) argues that spastic paresis should be classified alongside other movement disorders, opening new avenues for therapeutic intervention. He has also pioneered the integration of robotics into clinical practice, studying the Hybrid-Assisted Limb (HAL™) to enhance functional recovery in post-stroke patients following botulinum toxin injections (2021, 5 citations). This work demonstrates how combining pharmacological and robotic approaches can improve outcomes beyond traditional spasticity management. Kaji’s research bridges neurology, rehabilitation, and biomedical engineering, offering practical solutions for patients with disabling spasticity. His contributions are particularly impactful for clinicians and researchers seeking to transform spastic paresis from a chronic impairment into a dynamic, treatable condition.