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

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

0.44^w

0.19^r

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

0.96^w

0.01^r

SD in ML

10.01 ± 5.17

7.87 ± 2.74

0.09^w

0.24^r

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