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China's Soft Suit Slashes Walking Effort
29 Jul
Summary
- Soft exosuit uses artificial muscles, not conventional motors.
- Prototype weighs 4.2 pounds and reduces energy use by 13.9%.
- Future versions need longer battery life and safety testing.
A groundbreaking soft exosuit developed in China offers a novel approach to mobility assistance by employing artificial muscles instead of traditional motors. This 4.2-pound prototype, designed to fit around the waist and thighs, uses flexible fibers that mimic human muscles to help propel the wearer's legs forward. Early trials on a treadmill demonstrated a remarkable 13.9% reduction in energy expenditure for participants, indicating that their leg muscles also worked less.
This innovative design distinguishes itself from heavier, rigid exoskeletons by allowing for more natural body movement. The artificial muscles are crafted from a dielectric elastomer, a material that changes shape when electrified. Researchers have enhanced this material to provide sufficient pulling force for human assistance.
While promising, the technology is still in its early stages. Challenges remain, including extending battery life for longer use, improving the control system's responsiveness to changes in walking speed, and addressing the high voltages required by the artificial muscles, which necessitate extensive safety testing.
Future research will focus on testing the suit with older adults and individuals facing mobility challenges. The goal is to determine its effectiveness in real-world scenarios, aiming to help people maintain activity and independence. No consumer price or release date has been announced.
