Perturbations in sitting posture. represented by the center of mass (COM) of the upper body. provide critical information for analyzing balance control. While the COM is generally measured by an optical motion capture system. https://qxsjwjsdu2yw.blog2freedom.com/34914108/csr-and-technology-companies-a-study-on-its-implementation-integration-and-effects-on-the-competitiveness-of-companies