muscle,mean,std,mean_std psoas,5.72,3.33,5.72 ± 3.33 quadratus_lumborum,13.5,7.19,13.50 ± 7.19 paraspinal,16.2,9.37,16.20 ± 9.37 latissimus_dorsi,21.05,11.93,21.05 ± 11.93 iliacus,4.08,2.22,4.08 ± 2.22 rectus_femoris,1.76,1.34,1.76 ± 1.34 vastus,0.97,0.89,0.97 ± 0.89 rhomboid,0.88,1.19,0.88 ± 1.19 trapezius,2.45,2.24,2.45 ± 2.24