Abstract
Loading-carrying walking is a common and important task. Since carrying load is one of the main functions of wearable robotic devices, studying human responses to the dynamic disturbance of load-carrying can help to design sophisticated control algorithms for wearable robots. However, few studies focus on the effects of for-aft direction load on locomotion and the reaction of human has not been fully analyzed. This paper studies the surface Electromyography (sEMG) reaction under the fore-aft dynamic disturbance. A backpack is designed which can exert disturbance force on fore-aft direction during level walking. Comparison experiments, with and without load backpack, are performed to obtain kinematic and sEMG data from subjects. The muscle synergy is used to evaluate the dynamic responses of subjects to the disturbance. The experimental results indicate that subjects explore new patterns, expressed by different muscles synergies, to adapt to fore-aft interference through adjusting muscle activations. The obtained results may hint that human beings tend to utilize ankle strategy to exert fore-aft disturbance during level walking.
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Acknowledgment
This work was supported by the National Natural Science Foundation of China under Grant 61603284 and 61903286.
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Liu, K., Xiang, K., Tang, B., Luo, J., Pang, M. (2022). Evaluation of Muscle Activation Reaction on Fore-Aft Dynamic Interference During Load-Carrying Level Walking. In: Liu, H., et al. Intelligent Robotics and Applications. ICIRA 2022. Lecture Notes in Computer Science(), vol 13458. Springer, Cham. https://doi.org/10.1007/978-3-031-13841-6_56
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DOI: https://doi.org/10.1007/978-3-031-13841-6_56
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