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Table 5 Cluster analysis of stride frequency and variance analysis of main outcomes measurements in fibromyalgia patients

From: The interest of gait markers in the identification of subgroups among fibromyalgia patients

  Subgroup I
n = 9
Subgroup II
n = 24
Subgroup III
n = 19
Comparison of subgroups F ratio P
SF, mean (SE) (Hz) 1.04 (0.03) 0.94 (0.02) 0.86 (0.02) I, II ≠ III 76 0
VAS weekly, mean score (0 - 100) 56.9 (12.9) 76.9 (7.1) 67.5 (8.1) I ≠ II 4.99 0.01
FIQ, mean score (0 - 100) 42.0 (10.6) 59.6 (5.8) 59.8 (6.6) I ≠ II & III 6.20 0.004
SF-36 (PCS), mean score (0 - 100) 39.9 (5.8) 33.5 (3.0) 32.2 (3.4) I ≠ III 3.35 0.04
CCP, mean (W/Kg) 4.2 (1.0) 2.6 (0.5) 1.9 (0.6) I ≠ II & III 10.63 0.0002
  1. SF = stride frequency; SE = standard error; VAS = Visual Analog Scale; FIQ = Fibromyalgia Impact Questionnaire; SF-36 (PCS) = Short Form 36 items Medical Outcomes Study Questionnaire - physical component summary; CCP = Cranio-caudal power