BMECH_COP_COM_INCLINATION compute the angle between the COP and COM in the antero-posterior and medio-lateral diretion with respect to the global vertical ARGUMENTS fld ... str, folder to operate one see Lee HJ, Chou LS. Detection of gait instability using the center of mass and center of pressure inclination angles. Arch Phys Med Rehabil 2006;87:569–75. https://doi.org/10.1016/j.apmr.2005.11.033 see also cop_com_inclination_data, cop_com_inclinaton