Table 3.
Body composition, bone mineral apparent density (BMAD) and bone mineral content (BMC) before and after exercise training
| Variable | C-SLE trained (n = 10) |
C-SLE non-trained (n = 9) |
Control (n = 10) |
|---|---|---|---|
| BMAD, L1-L4, g/cm3 | |||
| PRE | 0.097 (0.013) | 0.108 (0.009) | 0.113 (0.016) |
| POST | 0.098 (0.012) | 0.108 (0.010) | --- |
| BMAD, TF, g/cm3 | |||
| PRE | 0.133 (0.019) | 0.145 (0.017) | 0.163 (0.032) |
| POST | 0.134 (0.020) | 0.145 (0.021) | NA |
| BMAD, WB without head, g/cm3 | |||
| PRE | 0.023 (0.001) | 0.025 (0.002) | 0.025 (0.002) |
| POST | 0.024 (0.002) | 0.024 (0.002) | NA |
| Total BMC, g | |||
| PRE | 1,223.0 (270.4) | 1,186.2 (271.2) | 1,530.0 (567.7) |
| POST | 1.245.0 (262.7) | 1,221.2 (252.7) | NA |
| BMC, without head, g | |||
| PRE | 910.0 (233.1) | 873.8 (267.4) | 1,168.3 (508.0) |
| POST | 927.0 (231.1) | 916.3 (242.1) | NA |
| Lean mass, Kg | |||
| PRE | 31.5 (4.9) | 29.9 (7.6) | 33.9 (10.8) |
| POST | 31.8 (5.1) | 30.7 (7.4) | NA |
| Fat mass, Kg | |||
| PRE | 17.4 (7.3) | 16.8 (6.0) | 11.7 (7.2) |
| POST | 17.0 (7.9) | 19.1 (6.3) | NA |
| Height, m | |||
| PRE | 1.48 (0.09) | 1.43 (0.9) | 1.51 (0.13) |
| POST | 1.49 (0.09) | 1.44 (0.1) | NA |
| Weight, Kg | |||
| PRE | 48.7 (10.1) | 49.7 (12.1) | 46.6 (14.5) |
| POST | 49.7 (11.3) | 51.8 (13.3) | NA |
Data are expressed as means (SD) (mixed model for repeated measures). C-SLE, childhood-onset systemic lupus erythematosus; PRE, pre-intervention (baseline), POST, post-intervention; BMAD, bone mineral apparent density; BMC, bone mineral content; TF, total femur; L1-L4, lumbar vertebrae L1 to L4; WB, whole body; NA, not applicable. There were no significant differences between or within groups for any of the variables.