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Table 3 Correlation analysis (adjusted body weight) between trunk muscle strength at different velocities and HQOL in DSD patients

From: Assessment of isokinetic trunk muscle strength and its association with health-related quality of life in patients with degenerative spinal deformity

R

VAS

ODI

RDQ

SF-36

30°/s Flexor PT/ BW

(N·m·Kg−1)

−0.109

− 0.129

− 0.205

0.091

30°/s Extensor PT/ BW

(N·m·Kg−1)

− 0.115

− 0.176

−0.240

0.121

30°/s F/E

−0.131

0.009

0.126

−0.067

60°/s Flexor PT/ BW

(N·m·Kg−1)

−0.099

−0.281

− 0.279

0.135

60°/s Extensor PT/ BW

(N·m·Kg−1)

−0.111

− 0.342*

−0.353*

0.161

60°/s F/E

−0.012

−0.012

0.047

−0.058

120°/s Flexor PT/ BW

(N·m·Kg−1)

−0.164

− 0.346*

−0.271

0.140

120°/s Extensor PT/ BW

(N·m·Kg−1)

−0.023

−0.145

− 0.189

0.058

120°/s F/E

−0.094

− 0.137

0.010

− 0.013

  1. Abbreviations: SD Standard deviation, DSD Degenerative spinal deformity, PT Peak torque, BW Body weight, F/E Flexion/Extension ratio, VAS Visual analogue scale, ODI Oswestry Disability Index, RDQ Roland-Morris Disability Questionnaires, SF-36 36-item Short Form Health Survey
  2. * P<0.05, matched analysis