Fig. 1From: Magnetic resonance imaging R2* sequences can better detect microstructural cartilage changes than T2 mapping in cynomolgus monkeys with limited knee kinematics: preliminary imaging findingsHip and knee flexion–extension measurements in the sagittal plane during a walking trial. A five colored markers (red, yellow, blue, green, purple; a, b, c, d, e) were used to mark the sacroiliac, hip, knee, ankle, and toe joints, respectively; B the foremost (a1, b1, c1, d1, e1) and backmost (a2, b2, c2, d2, e2) positions the corresponding joints reached during walking; C the length of the yellow line b1-b2 and blue line c1-c2 were recorded as the range of motion of the hip and knee joints, respectivelyBack to article page