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Table 2 Balance, motion, strength and gait parameters of the operated and non-operated side of patients following THA

From: Persisting inter‐limb differences in patients following total hip arthroplasty four to five years after surgery? A preliminary cross‐sectional study

  Operated side Non-operated side p-value Cohen’s d
Strength [Nm/kg]     
Flexion 1.43 ± 0.35 1.46 ± 0.30 0.67 0.11
Extension 0.83 ± 0.17 0.86 ± 0.20 0.51 0.17
Abduction 0.96 ± 0.23 1.06 ± 0.28 0.02* 0.66
Adduction 1.05 ± 0.29 1.06 ± 0.29 0.86 0.05
Motion [°]     
Flexion 89.13 ± 17.27 100.19 ± 12.24 0.001* 1.09
Extension 33.92 ± 7.22 33.04 ± 8.79 0.44w 0.19r
Abduction 36.74 ± 8.58 37.65 ± 10.45 0.79 0.07
Balance [mm]     
COP length 783.1 ± 309.65 696.8 ± 293.33 0.04* 0.56
SD in AP 9.23 ± 4.17 9.42 ± 5.30 0.96w 0.01r
SD in ML 10.01 ± 5.17 7.87 ± 2.74 0.09w 0.24r
Gait     
Step length [m] 0.74 ± 0.09 0.73 ± 0.09 0.87 0.04
Stance duration [s] 0.58 ± 0.08 0.58 ± 0.08 0.94 0.02
Swing duration [s] 0.47 ± 0.04 0.47 ± 0.03 0.98 0.01
One leg stance [%] 44.90 ± 2.57 44.94 ± 3.34 0.96 0.01
  1. w Wilcoxon-test
  2. r Correlation coefficient r
  3. * Differences statistically significant (p < 0.05)
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