Figure 5: Stability region of the MP and hip gain P for nine JCS pairs.
From: Effect of intermittent feedback control on robustness of human-like postural control system

Top and bottom figures represent P regions for the MP and hip, respectively. Each JCS{u} corresponds to the ones shown in Table 2. Grey, black, and brace bars represent three different pairs of viscoelasticity and alpha shown on the top.