Chinese scientists have introduced a breakthrough in wearable robotics, nonmotorised robotic hand exoskeletons designed to enhance human grip strength and reduce fatigue during physically demanding tasks. Developed by a research team led by Professor Sun Shuaishuai at the University of Science and Technology of China (USTC), the innovation allows users to effortlessly lift objects exceeding 200 kilograms.
Unlike conventional motorised exoskeletons, these gloves use magnetorheological (MR) actuators, delivering higher gripping power and endurance while consuming minimal energy. Published in IEEE Transactions on Robotics, the study revealed that the MR actuators achieve a peak holding force of 1046 N with only 5 W input, reducing energy consumption by nearly 98 per cent compared to traditional designs.
The exoskeletons demonstrated major potential in rescue operations, particularly in earthquake scenarios where equipment often fails to function in complex environments. Simulated tests showed that wearers experienced a 41.8 per cent improvement in grip strength, lower muscle fatigue, and up to a 20 per cent reduction in respiratory rate. Additionally, participants were able to transport injured individuals 110 per cent farther than without the device.
Beyond disaster relief, the technology could be adapted for industrial work, medical rehabilitation, and even space exploration. Sun emphasised plans to integrate intention recognition, lightweight composite materials, 3D printing, and enhanced human-machine interaction to refine performance and mimic natural hand movement more closely.
The innovation marks a leap forward in exoskeleton technology, combining efficiency, strength, and adaptability without reliance on heavy external power systems.
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