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Table 3 Anthropometric parameters, postural balance and proprioception muscle strength measurements in dancers with scoliosis and with no-scoliosis

From: Generalized joint hypermobility, scoliosis, patellofemoral pain, and physical abilities in young dancers

  Dancers with no-scoliosis (n = 94) Dancers with scoliosis (n = 38) p value Mean Difference 95% CI
Anthropometric parameters Lower Upper
 BMI (Kg/m2) 19.0 ± 2.5 19.7 ± 2.2 .141 −.69 −1.63 .23
Postural balance and proprioception
 YBT Anterior (cm) 58.2 ± 6.5 56.2 ± 5.4 .075 2.01 −.20 4.24
YBT Post. Med. (cm) 87.3 ± 7.2 85.8 ± 7.7 .315 1.48 −1.43 4.40
 YBT Post. Lat. (cm) 87.4 ± 11.1 85.4 ± 8.2 .277 1.94 −1.58 5.46
 YBT composed score (cm) 92.2 ± 8.9 90.6 ± 8.0 .308 1.65 −1.54 4.84
 AMEDA (AUC score) .628 ± .042 .603 ± .040 .003 .024 .009 .04
Muscle strength measurements
 Knee extension (N) 251.2 ± 44.3 227.4 ± 52.7 .017 23.80 4.32 43.28
 Knee flexion (N) 125.3 ± 18.5 116.2 ± 20.5 .022 9.06 1.34 16.78
  1. BMI Body mass index, YBT anterior Y balance test in the anterior direction, YBT Post. Med. Y balance test in the posterio-medial direction, YBT Post. Lat. Y balance test in the postero-lateral direction, AMEDA Active Movement Extent Discrimination Apparatus