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A Sub-Kilogram Robot Helped Children With SMA Regain the Ability to Walk

Легкий робот допомагає дітям з СМА відновити можливість ходьби. Photo: НВ — Техно

Study Results

On June 5 at 3:00 PM, findings were released from a study conducted by researchers at Beihang University, Peking University Third Hospital, and the Massachusetts Institute of Technology. Six children aged 6 to 10, all diagnosed with type 2 spinal muscular atrophy (SMA), took part. SMA is a genetic disorder that damages the nerves responsible for controlling muscle movement.

An Innovative Rehabilitation Approach

The team developed a portable robotic device weighing just 0.96 kilograms. Instead of assisting movement, this gadget provides controlled resistance, enabling kids to engage in physical exercise through play. During sessions, the children played a video game where they had to kick a virtual ball by extending their legs. The robot, attached to their knees, made each movement more challenging, thereby stimulating muscle activity.

Over six weeks, the participants completed 30 training sessions. As a result, the volume of their quadriceps muscles increased by 19%, and muscle strength improved by 130%. Additionally, the children saw better knee joint function, with greater range of motion and enhanced force generation. Researchers also detected stronger nerve signals between the femoral nerve and the leg muscles.

A major milestone was that all six children could independently stand up from a chair after finishing the program. Importantly, the training benefits persisted even after they stopped using the robotic device and returned to standard physiotherapy. These outcomes highlight the potential of new technologies in rehabilitating children with severe neurological conditions.

This study underscores the importance of innovation in medical rehabilitation, particularly for treating children with genetic diseases like spinal muscular atrophy.

Leveraging technologies that blend physical exercise with gaming elements can significantly enhance treatment results and patients' quality of life. These findings open new avenues for future research in rehabilitation medicine and may lay the groundwork for further development of similar technologies.

The advancements in robotic technology are not limited to rehabilitation for children; they also extend to various fields where machines can tackle intricate tasks. A recent study highlights how robots can effectively learn complex skills without needing diverse datasets. This research could pave the way for further innovations in both healthcare and automation, showcasing the versatility of robotic applications.