In a groundbreaking development, a team of researchers, led by Professor Wang Qining from the School of Advanced Manufacturing and Robotics at Peking University, has unveiled the world’s first portable underwater exoskeleton system. This innovative exoskeleton is designed to assist divers with knee movement, effectively reducing air consumption and muscle effort during dives. Published in the IEEE Transactions on Robotics in October 2025, this research marks a significant leap forward in underwater exploration technology.
Challenges and Advances in Underwater Movement
The ocean, accounting for 71% of Earth’s surface, presents unique challenges for exploration due to the resistance to movement it poses, which demands more energy compared to land-based activities. While wearable exoskeletons have traditionally been effective at easing physical labor on land, adapting such technology to the underwater realm has tested engineers and scientists. The distinct biomechanical and environmental constraints of aquatic environments have posed significant hurdles. This recent study demonstrates that powered exoskeletons can enhance labor efficiency in extreme underwater conditions, extending their potential well beyond terrestrial confines.
Functionality and Benefits of the Underwater Exoskeleton
The underwater exoskeleton designed by the research team features a bilateral cable-driven system supporting divers during the flutter kick. It provides real-time assistance using motion sensors and force-based controls. This system significantly reduces the physical demands on divers, as evidenced by a 22.7% decrease in air consumption and around a 21% reduction in quadriceps and calf muscle activation. These benefits not only extend dive durations and improve safety but also mitigate fatigue, offering promising applications in marine research, underwater construction, and diver training.
Future Implications of Underwater Robotics
This pioneering underwater exoskeleton represents a significant leap in diving technology, offering substantial improvements in performance and endurance for divers. By reducing the physical burden and oxygen use, divers can explore marine environments more effectively and safely. This breakthrough not only supports current applications in marine operations but also paves the way for future innovations in wearable robotics, facilitating a closer bond between humans and the ocean.
In conclusion, the introduction of this portable underwater exoskeleton underscores the potential of integrating advanced robotics into underwater exploration. As this technology continues to evolve, it promises to revolutionize the way humans interact with and explore our oceans’ depths, opening new frontiers in environmental study and resource management. The exoskeleton not only enhances the capabilities of today’s divers but also sets the stage for future advancements that could transform underwater exploration.