|  | Difference in relation to baseline |  |  | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Baseline | 6 months | 12 months |  |  | |||||||||||||
Pilates-type NME n = 110 | Controls n = 109 | M | Pilates-type NME n = 88 | Controls n = 88 | M | Pilates-type NME n = 79 | Controls n = 78 | M | p-value | p-value, adjusted | |||||||
% | Mean (SD) | % | Mean (SD) | Â | % | Mean (SD) | % | Mean (SD) | Â | % | Mean (SD) | % | Mean (SD) | Â | Â | Â | |
VAS (0–100) |  | 36.3 (21.9) |  | 36.1 (24.0) | 1 |  | −10.7 (24.0) |  | −6.6 (26.1) | 14 |  | −11.3 (21.8) |  | −6.1 (28.1) | 8 | 0.076 | 0.047 |
Pain interfering with work (0–100) |  | 61.5 (18.7) |  | 64.4 (19.3) | 8 |  | 11.0 (18.0) |  | 2.6 (19.3) | 14 |  | 7.2 (18.1) |  | 1.3 (25.5) | 9 | 0.035 | 0.046 |
MCI (0–4) |  | 1.1 (1.0) |  | 1.1 (1.0) | – |  | −0.5 (1.0) |  | −0.3 (1.0) | – |  | −0.5 (1.0) |  | −0.2 (1.1) | – | 0.036 | 0.042 |
Fitness components: | |||||||||||||||||
 6MWT (metres) |  | 614 (50.8) |  | 620 (48.8) | 1 |  | 21.5 (35.4) |  | 8.9 (34.4) | 2 |  | 22.7 (32.5) |  | 13.7 (36.4) | 6 | 0.075 | 0.273 |
 Modif. push-ups |  | 9.1 (3.4) |  | 9.0 (2.8) | 6 |  | 1.7 (2.0) |  | 1.6 (1.9) | 10 |  | 2.4 (2.6) |  | 2.5 (2.2) | 13 | 0.862 | 0.979 |
 Sit-ups; % reaching 20 repetitions max. | 62 |  | 75 |  | 1 | 74 |  | 76 |  | 1 | 77 |  | 77 |  | 2 | 0.016 | 0.033 |
 One leg squats (0–12) |  | 9.4 (2.7) |  | 9.5 (2.4) | 4 |  | 0.4 (1.5) |  | 0.6 (1.4) | 10 |  | 0.3 (1.7) |  | 0.5 (1.3) | 20 | 0.631 | 0.420 |
Work-related factors: | |||||||||||||||||
 Work-induced lumbar exertion |  |  |  |  | 3 |  |  |  |  | 16 |  |  |  |  | 10 | 0.086 | 0.138 |
  little | 27 |  | 32 |  |  | 51 |  | 44 |  |  | 48 |  | 36 |  |  |  |  |
  moderate to high | 73 |  | 68 |  |  | 49 |  | 56 |  |  | 52 |  | 64 |  |  |  |  |
 Physical functioning in nursing tasks (0–80) |  | 6.1 (4.9) |  | 6.6 (5.2) | 11 |  | −0.9 (4.4) |  | 0.3 (4.9) | 26 |  | −0.3 (4.8) |  | −0.6 (4.7) | 27 | 0.007 | 0.061 |
 Tiredness and recovery (4–18) |  | 10.4 (3.4) |  | 10.0 (3.2) | 1 |  | − 0.7 (2.5) |  | − 0.3 (2.3) | 13 |  | −0.3 (3.2) |  | 0.4 (2.3) | 7 | 0.061 | 0.180 |