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. 2022 Jul 6;12:11398. doi: 10.1038/s41598-022-15682-w

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Example of strength-assisted task performed by person wearing exosuit applying fabric muscle (see Video S5). (a) The worker prepares to lift the object with both the BFM and TMF of the exosuit relaxed in a loading area (State 1: 2 s). As the worker flexes his arm and lifts the object, the BFM of the exosuit contracts to support the muscle strength (State 2: 3 s). The BFM is then controlled to a constant temperature, and the worker moves to an unloading area while maintaining the flexion state of the arm holding the object (State 3: 3 s). Finally, the worker extends his arms, lowers the object into the unloading area, and returns to the initial position (loading area) to carry the next object (State 4: 12 s). (b) Measured temperature (top graph) and displacement (bottom graph) of BFM and TFM according to the state.