Table 2.
Comparison of the clinical characteristics of the patients with DMD after stratification according to the distance covered in the 6MWT.
| 6MWT < 350 m (n = 9) | 6MWT ≥ 350 m (n = 12) | Mean difference (95% CI) | P | |
|---|---|---|---|---|
| Age (years) | 7.9 ± 2.6* | 8.3 ± 1.6* | −0.3 (−2.5, 1.3) | 0.76† |
| BMI (kg/m2) | 18.5 (9.2)⁎⁎ | 17.7 (4.9)⁎⁎ | NA | 0.21‡ |
| Lumbar lordosis (°) | 42 (5.8)⁎⁎ | 28 (5.8)⁎⁎ | NA | 0.01‡ |
| Kyphosis (°) | 29.1 ± 12.3* | 21.7 ± 7.9* | 7.4 (−3.5, 10.0) | 0.22† |
| Fall index (%) | 90.7 ± 14.5* | 95.6 ± 10.1* | −4.9 (−17.8, 11.3) | 0.45† |
| BBS | 43.3 ± 7.6* | 53.0 ± 2* | −9.2 (−15.0, −6.8) | 0.01† |
| TUG (s) | 10.8 ± 3.7* | 5.1 ± 0.7* | 5.7 (4.4, 8.2) | 0.001† |
| TRF (s) | 3.7 ± 1.5* | 3.5 ± 1.3* | 0.2 (0.7, 3.5) | 0.79† |
| MMT -UL | 74.3 ± 11.4* | 80.0 ± 12.8* | −5.7 (−24.5, −3.1) | 0.37† |
| MMT-LL | 67.9 ± 10.7* | 72.5 ± 14.1* | −4.7 (−30.7, −3.9) | 0.48† |
6MWT, six minute walk test; BBS, Berg Balance Scale; BMI, body mass index; DMD, Duchenne Muscular Dystrophy; MMT-LL, manual muscle tests lower limbs; MMT-UL, manual muscle tests upper limbs; NA, not applicable; TRF, time to rise from floor test; TUG, timed up and go test.
aBold data signify a statistically significant difference.
⁎
Mean ± Standard deviation.
⁎⁎
Median (interquartile range).
†
t-test.
‡
Mann Whitney U test.