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Table 2 Mean (±SD) of double-leg quiet standing tasks

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

Outcome measure VCP (mm/s) Control group (n = 18) Single curve (n = 18) Double curve (n = 6)
Pre-operative 3 months 1 year Pre-operative 3 months 1 year
SEO x 7.1 (2.8) 6.7 (3.5) 18.4 (2.6) 6.0 (2.7) 7.6 (1.3) 9.1 (2.7) 8.3 (2.3)
SEO y 8.7 (2.4) 8.8 (2.7) 9.2 (3.3) 8.6 (3.2) 11.6 (5.5) 12.3 (3.1) 11.9 (5.3)
SEC x# 9.8 (3.8) 8.6 (3.2) 8.6 (3.6) 8.8 (5.4) 11.7 (3.0) 13.7 (2.9) 12.2 (4.4)
SEC y# 13.5 (4.1) 13.1 (3.9) 13.0 (4.9) 13.3 (4.0) 17.4 (7.3) 18.7 (5.1) 18.2 (6.8)
FEO x# 9.5 (3.0) 8.5 (3.0) 8.5 (3.3) 7.9 (2.6) 11.3 (4.3) 12.1 (2.6) 11.0 (3.1)
FEO y# 13.6 (3.6) 10.8 (2.5) 11.7 (2.8) 12.1 (4.2) 15.0 (5.7) 15.3 (2.2) 13.7 (4.1)
FEC x# 16.6 (5.7) 15.1 (6.0) 15.5 (5.4) 15.6 (6.2) 20.5 (5.1) 24.1 (8.5) 20.8 (10.6)
FEC y*,# 27.1 (8.5) 22.6 (5.9) 24.3 (6.5) 23.7 (6.9) 30.7 (8.3) 36.2 (8.6) 30.3 (12.5)
RQ x Solid 1.4 (0.3) 1.4 (0.4) 1.3 (0.2) 1.4 (0.4) 1.5 (0.2) 1.6 (0.3) 1.5 (0.3)
RQ x Foam 1.8 (0.4) 1.8 (0.4) 1.9 (0.4) 2.0 (0.4) 1.9 (0.5) 2.0 (0.5) 1.8 (0.5)
RQ y Solid 1.6 (0.3) 1.5 (0.3) 1.4 (0.2) 1.6 (0.3) 1.5 (0.1) 1.5 (0.1) 1.6 (0.3)
RQ y Foam 2.0 (0.4) 2.1 (0.4) 2.1 (0.4) 2.0 (0.3) 2.1 (0.5) 2.4 (0.6) 2.2 (0.7)
LSEO x 29.5 (10.1) 25.2 (6.7) 25.1 (8.9) 25.2 (8.3) 33.1 (12.1) 35.0 (8.0) 30.6 (9.6)
LSEO y 31.1 (11.1) 27.2 (8.2) 27.2 (8.3) 25.4 (8.8) 37.5 (8.6) 35.1 (4.2) 30.6 (6.9)
RSEO x 27.2 (6.1) 25.5 (8.7) 24.6 (9.3) 23.6 (6.2) 34.8 (6.7) 33.9 (7.0) 30.4 (5.8)
RSEO y 27.3 (6.2) 26.8 (7.6) 26.8 (8.2) 26.0 (8.6) 37.8 (8.5) 37.4 (6.2) 34.0 (5.0)
  1. RQ = Romberg’s quotient
  2. *significant effect of Time
  3. #significant effect of Curve Type