A new study from our group characterizing the biases introduced by the use of simplified center of estimates during walking and turning was recently published in Gait and Posture.
K.L. Havens, T. Mukherjee, J.M. Finley. (2018). Analysis of Biases in Dynamic Margins of Stability Introduced by the Use of Simplified Center of Mass Estimates during Walking and Turning. Gait and Posture. 59, 162-167.