Unfortunately, the original version of this article [ 1] missed a detail. The full term can be found below:
Sufficient test–retest reliability and validity (r 2 > 0.97; RMSE = 4.1°; p < 0.001) of this measurement system for lumbar spine kinematics has recently been demonstrated .
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.