Mean percentage fat infiltration±SD, 95% CI of the lumbar paraspinal muscles
| Left pre mean | Left post mean | Change (%) | Right pre mean | Right post mean | Change | |
|---|---|---|---|---|---|---|
| L3L4 | ||||||
| Total | 13.0±8.2* 9.8 to 16.2 | 10.0±6.3, 7.56 to 12.46 | −23 | 12.1±6.1,* 9.7 to 14.5 | 9.4±5.3, 7.3 to 11.5 | −22 |
| R1 | 2.8±1.1* 2.3 to 3.2 | 2.1±1.2, 1.7 to 2.6 | −23 | 2.6±0.9,* 2.2 to 2.9 | 2.2±1.2, 1.7 to 2.6 | −16 |
| R2 | 2.8±2.1* 2.0 to 3.6 | 2.3±2.1, 1.5 to 3.1 | −19 | 2.3±1.6,* 1.7 to 3.0 | 1.8±1.3, 1.3 to 2.3 | −22 |
| R3 | 2.3±2.2* 1.4 to 3.2 | 1.7±1.4, 1.1 to 2.2 | −28 | 2.2±1.7,* 1.5 to 2.8 | 1.7±1.3, 1.2 to 2.2 | −22 |
| R4 | 1.7±1.6* 1.1 to 2.3 | 1.2±0.9, 0.9 to 1.5 | −29 | 1.8±1.5,* 1.2 to 2.4 | 1.3±0.9, 1.0 to 1.7 | −25 |
| R5 | 2.1±1.3* 1.5 to 2.6 | 1.6±1.1, 1.1 to 2.0 | −24 | 2.1±1.3,* 1.6 to 2.6 | 1.5±1.0, 1.1 to 1.9 | −29 |
| R6 | 1.7±1.1 1.2 to 2.1 | 1.4±1.1, 1.0 to 1.8 | −15 | 1.6±1.0,* 1.2 to 2.0 | 1.2±1.0, 0.8 to 1.6 | −22 |
| L4L5 | ||||||
| Total | 14.3±7.0,* 11.6 to 17.1 | 11.8±6.0, 9.4 to 14.1 | −18 | 13.6±5.6,* 11.5 to 15.8 | 11.7±5.6, 9.6 to 13.9 | −14 |
| R1 | 3.3±1.2, 2.8 to 3.7 | 2.8±1.4, 2.3 to 3.8 | −14 | 3.0±1.0, 2.6 to 3.4 | 3.2±1.4, 2.7 to 3.8 | +6 |
| R2 | 4.1±2.2, 3.3 to 5.0 | 3.7±2.3, 2.8 to 4.6 | −10 | 3.6±1.9,* 2.9 to 4.4 | 3.1±2.0, 2.3 to 3.9 | −15 |
| R3 | 2.6±1.5,* 2.0 to 3.2 | 2.0±1.6, 1.4 to 2.6 | −21 | 2.6±1.9,* 1.9 to 3.4 | 2.2±1.8, 1.5 to 2.9 | −17 |
| R4 | 1.7±1.3,* 1.2 to 2.2 | 1.4±1.1, 1.0 to 1.8 | −19 | 1.9±1.6,* 1.3 to 2.5 | 1.5±1.3, 1.0 to 2.0 | −19 |
| R5 | 1.6±1.2,* 1.1 to 2.1 | 1.1±0.8, 0.8 to 1.4 | −32 | 1.6±1.1,* 1.2 to 2.0 | 1.1±0.7, 0.8 to 1.4 | −31 |
| R6 | 1.7±1.0,* 1.3 to 2.1 | 1.2±0.8, 1.0 to 1.5 | −27 | 1.8±1.1,* 1.3 to 2.2 | 1.3±0.8, 1.0 to 1.7 | −25 |
| L5S1 | ||||||
| Total | 18.0±5.9 15.7 to 20.3 | 17.3±7.0 14.6 to 20.1 | −3 | 17.8±6.2 15.4 to 20.3 | 16.3±7.2, 13.5 to 19.1 | −8 |
| R1 | 4.1±1.6 3.4 to 4.7 | 3.9±1.7 3.2 to 4.5 | −5 | 4.1±1.3 3.6 to 4.6 | 3.9±1.4, 3.4 to 4.5 | −4 |
| R2 | 6.3±2.0 5.6 to 7.1 | 6.1±2.4 5.2 to 7.1 | −3 | 5.4±2.1 4.6 to 6.3 | 5.3±2.6, 4.3 to 6.3 | −2 |
| R3 | 4.2±2.3 3.3 to 5.1 | 4.1±2.3 3.2 to 5.0 | −3 | 4.2±2.2 3.4 to 5.1 | 3.7±2.5, 2.8 to 4.7 | −12 |
| R4 | 2.4±1.6 1.8 to 3.1 | 2.2±1.5 1.6 to 2.8 | −10 | 2.5±1.5 2.0 to 3.1 | 2.0±1.8, 1.3 to 2.8 | −20 |
| R5 | 1.2±0.8 0.9 to 1.5 | 1.3±1.2 0.8 to 1.8 | +7 | 1.5±0.9* 1.2 to 1.9 | 1.2±1.1, 0.8 to 1.7 | −22 |
| R6 | 1.4±0.9 1.0 to 1.7 | 1.3±1.3 0.8 to 1.8 | −8 | 1.4±0.8 1.1 to 1.7 | 1.3±1.2, 0.8 to 1.8 | −6 |
*Significant difference (p≤0.05) between baseline and week 16.
R1-R6 are the regions away from the centre of the spinal cord where region 1 is closest and region 6 furthest.