Presentation: 2025 ND EPSCoR Annual conference 

October 21, 2025, NDSU Memorial Union, Fargo, North Dakota

Biomimetic Adaptive Insole for Enhanced Mobility in Lunar EVA Boots

During lunar spacewalks, the stiff design of current EVA boots will limit natural foot actuation during lunar gait. This will increase energy needs in reduced gravity. In order to address these issues, we've developed a biomimetic adaptive insole that can be easily integrated into next-generation EVA boots. The insole features adjustable 3D printed structures that mimic the human foot’s medial arch and windlass mechanism. This design allows for controlled flexibility on uneven terrain and varying loads, while maintaining the necessary support and stability. Initial tests and simulations show that the adaptive insole improves foot force distribution, enhances balance, and reduces the energy needed to walk compared to traditional rigid insoles. These results highlight the potential of biomimetic strategies to reduce musculoskeletal strain and increase astronaut endurance during spacewalks on other planets. Next steps include testing prototypes in lunar gravity analog environments and integrating them with full-scale EVA footwear systems to evaluate long-term performance. This research contributes to advancing EVA boot technology by emphasizing functional adaptability, ultimately supporting the Artemis program’s goal of establishing a sustainable human presence on the Moon.