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Table 3 Mean (±SD) of reaching task, dynamic balance task

From: Adolescent idiopathic scoliosis and spinal fusion do not substantially impact on postural balance

Outcome measure Control group (n=18) Single curve (n=18) Double curve (n=6)  
  Pre-operative 3 months 1 year Pre-operative 3 months 1 year p-value $
Reaching task
COP position (%) Anterior 71.8 (9.5) 66.5 (9.5) 69.4 (10.0) 67.4 (10.6) 68.9 (5.3) 68.6 (7.6) 72.8 (7.1) 0.10
COP position (%) Posterior* 22.1 (6.2) 33.0 (14.3) 30.7 (16.4) 32.4 (18.3) 25.3 (7.3) 22.0 (8.9) 22.6 (3.8) 0.006
COP position (%) Left* 61.9 (9.8) 52.6 (11.5) 53.0 (13.8) 49.5 (13.1) 55.2 (6.4) 59.5 (9.3) 59.1 (5.8) 0.009
COP position (%) Right* 61.4 (9.4) 49.7 (8.6) 49.0 (17.2) 49.3 (12.9) 52.8 (8.7) 56.4 (7.9) 48.0 (22.7) <0.001
Dynamic balance task
Score 13.0 (1.6) 13.1 (2.9) 14.4 (3.0) 14.5 (3.0) 12.2 (4.3) 12.2 (2.2) 13.8 (3.7) 0.89
Movement time (s) 2.3 (0.3) 2.3 (0.4) 2.1 (0.4) 2.1 (0.5) 2.7 (1.4) 2.5 (0.5) 2.3 (0.7) 0.50
  1. *significant different between control group and AIS patients at T0
  2. $ student t-test between control group and AIS patients at T0