High-dose motor therapy improves outcomes after perinatal stroke in infants and toddlers. A new study, presented at the American Stroke Association's International Stroke Conference 2026, reveals that a treatment combining restricted use of the stronger arm with intensive task-oriented physical therapy has led to enhanced function and skill development on the weak side compared to standard care. This approach, known as Constraint-Induced Movement Therapy (CIMT), is particularly effective for young children who have experienced perinatal arterialischemic stroke (PAIS), the most common form of stroke in children. The study, conducted by Sharon Ramey, Ph.D., and her team, is the first to evaluate the impact of CIMT tailored for very young children, delivered in their natural environments, and including a parent program. This research fills a critical gap in understanding the benefits of this treatment for infants and toddlers, as previous recommendations were based on a mixed group of older children with cerebral palsy and hemiparesis, lacking specific data for this clinical population. The study's findings demonstrate that both high-dose and moderate-dose CIMT were well-received, safe, and produced measurable improvements in neuromotor skills, with a median gain of 3 new skills each. However, the usual care group also showed clinically important improvements, which may reflect the greater variability in responses to treatment among children with PAIS. The study's success highlights the potential for early stroke recovery in infants and the importance of personalized treatment plans. The research team's careful approach and monitoring of participants ensured the validity of the results, and the study's limitations are discussed, emphasizing the need for further research to identify the most effective treatment strategies for individual children.