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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