Multifid volume before physiotherapy (cm3) | Multifid volume after physiotherapy (cm3) | Absolute Deviation | rate of progression | |
Average | 193 | 203 | 10 | 5% |
Standard deviation | 39 | 42 | 3 | 8% |
Median | 198 | 209 | 11 | 6% |
Minimum | 131 | 122 | −9 | −7% |
Maximum | 288 | 298 | 10 | 3% |