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. 2021 Jun 9;11:12133. doi: 10.1038/s41598-021-91683-5

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© The Author(s) 2021

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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Schematic of the measured and calculated kinetic and kinematic variables in the sagittal plane. F_y1 and F_y2 are the anteroposterior GRF of the first and second force plates, respectively. F_z1 and F_z2 are the vertical GRF of the first and second force plates, respectively. y_COP is the global COP in the anteroposterior direction. y_COM and z_COM are the position of whole-body COM in the anteroposterior and vertical directions, respectively. M_x is the external moment about COM in the sagittal plane.