Publications

Assistive and Rehabilitation Robotics Lab

International Journal

Reducing sprint time with exosuit assistance in the real world
Author
Junyoung Moon†, Kimoon Nam†, Jaewook Ryu‡, Yoosun Kim‡, Juseok Yun, Seungtae Yang, Jaeha Yang, and Giuk Lee*
Journal
Science Robotics
Status
Published
Vol
8(82)
Year
2023
Exceeding the limits of the human body is a fundamental human desire. We revealed that a wearable robot can reduce sprint times of non-elite runners, indicating the transcendence of personal physical limitations through a wearable robot. Compared with the no-suit condition, the sprint time of 200-m sprinting in the suit-on condition decreased by 0.97 s on average. Specifically, the sprint times in the 0- to 100-m and 100- to 200-m sections were reduced by 0.68 and 0.30 s on average, respectively. And we found a linear correlation between the rate of decrease in the sprint time and rate of increase in the step frequency during the sprints. This finding indicates that the exosuit served to shorten the sprint time by increasing the step frequency.

Funding Information
*The Industrial Strategic Technology Development Program (no. 20007058), funded by the Ministry of Trade, Industry and Energy (MOTIE; Korea)
*Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (no. 2021R1A4A3030268)
*Korea Medical Device Development Fund grant, funded by the Korean government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, and the Ministry of Food and Drug Safety) (RS-2022-00140621)
*R&D Program for Forest Science Technology (no. 2021364B10-2123-BD01), provided by the Korea Forest Service (Korea Forestry Promotion Institute).