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Table 5 Co-contraction index (CCI) (mean, SD) during treadmill walking for girls with Generalized Joint Hypermobility (GJH) and girls without GJH (non-GJH)

From: No difference in knee muscle activation and kinematics during treadmill walking between adolescent girls with and without asymptomatic Generalised Joint Hypermobility

  GJH
(n = 16)
non-GJH
(n = 10)
p-value
Mean HQ 4.4 (1.3) 5.4 (1.9) 0.14
 Medial HQ (ST,VM), 4.1 (1.4) 4.9 (2.3) 0.27
 Lateral HQ (BF,VL), 3.8 (1.1) 4.7 (1.6) 0.12
Ratio medial/lateral HQ 1.1 (0.3) 1.1 (0.4) 0.68
Mean GQ 4.2 (1.9) 4.0 (1.4) 0.79
 Medial GQ (GM,VM), 3.5 (1.7) 3.6 (1.8) 0.96
 Lateral GQ (GL,VL), 4.3 (2.1) 4.0 (1.1) 0.77
Ratio medial/lateral GQ 0.9 (0.3) 0.89 (0.3) 0.87
  1. HQ hamstrings-quadriceps, GQ gastrocnemius-quadriceps, quadriceps, VL vastus lateralis, VM vastus medialis, hamstrings, BF biceps femoris, ST semitendinosus, gastrocnemius, GL gastrocnemius lateralis, GM gastrocnemius medialis