Fig. 1
From: Adolescent idiopathic scoliosis and spinal fusion do not substantially impact on postural balance
Velocity of the COP in the anteroposterior direction (VCPy) at the three measurements for patients with a single (light blue) and double (dark blue) curvature in the foam surface, eyes closed (FEC) condition. Red lines represent median value (with 25th and 75th percentile) of healthy control group. No differences were observed between the control group and AIS patients. Patients with double curves demonstrated significantly greater velocities (p < 0.05)