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This paper introduces the Bilateral Back Extensor Exosuit (BBEX), a robotic back-support device designed to address both functionality and safety concerns. The design of the BBEX draws inspiration from the anatomical characteristics of the human spine and back extensor muscles. Using a multi\u2013degree-of-freedom architecture and serially connected linear actuators, the device\u2019s components are strategically arranged to closely mimic the biomechanics of the human spine and back extensor muscles. To establish the efficacy and safety of the BBEX, a series of experiments with human participants was conducted. Eleven healthy male participants engaged in symmetric and asymmetric lifting tasks while wearing the BBEX. The results confirm the ability of the BBEX to provide effective multidimensional force assistance. Moreover, comprehensive safety validation was achieved through analyses of muscle fatigue in the upper and the lower erector spinae muscles, as well as mechanical loading on spinal joints during both lifting scenarios. By seamlessly integrating functionality inspired by human biomechanics with a focus on safety, this study offers a promising solution to address the persistent challenge of preventing lumbar spine injuries in demanding work environments.<\/jats:p>","DOI":"10.1126\/scirobotics.adk6717","type":"journal-article","created":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T17:58:18Z","timestamp":1721843898000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":13,"title":["Bilateral Back Extensor Exosuit for multidimensional assistance and prevention of spinal injuries"],"prefix":"10.1126","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7561-5681","authenticated-orcid":true,"given":"Jae","family":"In Kim","sequence":"first","affiliation":[{"name":"Samsung Electronics, Suwon, Korea."},{"name":"Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea."}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4177-3010","authenticated-orcid":true,"given":"Jaeyoun","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea."}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9290-9099","authenticated-orcid":true,"given":"Junhyung","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea."},{"name":"Institute of Advanced Machines and Design, Seoul National University, Seoul 08826, Korea."},{"name":"Institute of Engineering Research, Seoul National University, Seoul 08826, Korea."}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4399-9323","authenticated-orcid":true,"given":"Junkyung","family":"Song","sequence":"additional","affiliation":[{"name":"Department of Physical Education, Seoul National University, Seoul 08826, Korea."},{"name":"Institute of Sport Science, Seoul National University, Seoul 08826, Korea."}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0156-5591","authenticated-orcid":true,"given":"Jaebum","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Physical Education, Seoul National University, Seoul 08826, Korea."},{"name":"Institute of Sport Science, Seoul National University, Seoul 08826, Korea."}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2491-2114","authenticated-orcid":true,"given":"Yong-Lae","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Seoul National University, Seoul 08826, Korea."},{"name":"Institute of Advanced Machines and Design, Seoul National University, Seoul 08826, Korea."},{"name":"Institute of Engineering Research, Seoul National University, Seoul 08826, Korea."}]}],"member":"221","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.21037\/atm.2020.02.175"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(18)30488-4"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(18)30480-X"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/00043764-200301000-00007"},{"key":"e_1_3_2_6_2","unstructured":"J. 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