Table 2. Correspondence between thigh circumference and relative arterial occlusion pressure. Thigh circumference Pressure (40% AOP) Pressure (60% AOP) < 51 cm 80 mmHg 120 mmHg 51-55.9 cm 100 mmHg 150 mmHg 56-59.9 cm 120 mmHg 180 mmHg ≥ 60 cm 140 mmHg 210 mmHg