Table 7 The correlation analysis among other radiographic parameters

 FJA

− 0.161

0.123

 FJO

0.108

0.301

 Multifidus muscle

− 0.387

< 0.001*

 Erector spinae muscle

− 0.274

0.008*

 Psoas major muscle

− 0.435

< 0.001*

The correlation analysis between CEF and other radiographic parameters

 FJA

0.150

0.152

 FJO

0.128

0.221

 Multifidus muscle

− 0.067

0.522

 Erector spinae muscle

− 0.073

0.485

 Psoas major muscle

0.065

0.536

The correlation analysis between LF and other radiographic parameters

 FJA

− 0.297

0.036*

 FJO

0.249

0.016*

 Multifidus muscle

0.004

0.972

 Erector spinae muscle

0.054

0.605

 Psoas major muscle

− 0.233

0.001*

The correlation analysis between FJA and other radiographic parameters

 Multifidus muscle

− 0.170

0.104

 Erector spinae muscle

− 0.133

0.204

 Psoas major muscle

− 0.075

0.477

 ROM

− 0.143

0.177

The correlation analysis between FJO and other radiographic parameters

 Multifidus muscle

− 0.008

0.936

 Erector spinae muscle

0.009

0.930

 Psoas major muscle

− 0.086

0.414

 ROM

− 0.094

0.376

The correlation analysis between ROM and other radiographic parameters

 Multifidus muscle

0.091

0.393

 Erector spinae muscle

0.077

0.470

 Psoas major muscle

− 0.146

0.168