Engineering and Technology

Soft wearable flexible bioelectronics integrated with an ankle-foot exoskeleton for estimation of metabolic costs and physical effort

J. Kim, P. Kantharaju, et al.

This innovative research introduces a soft, flexible bioelectronic system that integrates with a wearable ankle-foot exoskeleton, revolutionizing the way we estimate metabolic costs and physical effort. Conducted by a team of experts, this system utilizes a soft flexible biopatch to measure vital data, paving the way for real-time adjustments in wearable robotics based on user biofeedback.

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Abstract

This paper introduces a soft, flexible bioelectronic system integrated with a wearable ankle-foot exoskeleton to estimate metabolic costs and physical effort. The system uses a soft flexible biopatch (SFB) to measure ECG and motion data, replacing bulky indirect calorimetry. Experiments involving walking, running, and squatting showed a strong negative correlation (R = 0.758) between metabolic costs and heart rate variability root mean square of successive differences (HRV-RMSSD). This integrated system offers potential for real-time wearable robot adjustments based on biofeedback, paving the way for field-deployable exoskeleton platforms.

Publisher

npj Flexible Electronics

Published On

Jan 25, 2023

Authors

Jihoon Kim, Prakyath Kantharaju, Hoon Yi, Michael Jacobson, Hyungkeun Jeong, Hojoong Kim, Jinwoo Lee, Jared Matthews, Nathan Zavanelli, Hyeonseok Kim, Heejin Jeong, Myunghee Kim, Woon-Hong Yeo

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