Table 6 Correlation coefficient analysis of NRS of LBP and CSAs of PS and MF. PS; Psoas, MF; Multifidus, CSA; Cross-Sectional Area. NRS; numeric rating scale, LBP; low back pain
| Â | PS AveCSA (L3-L4) | PS AveCSA (L4-L5) | PS AveCSA (L5-S1) | MF AveCSA (L3-L4) | MF AveCSA (L4-L5) | MF AveCSA (L5-S1) |
|---|---|---|---|---|---|---|
NRS | −0.026 | 0.004 | 0.080 | −0.103 | −0.198 | − 0.103 |