Table 3.
A comparison of isokinetic shoulder strength between symptomatic limbs, asymptomatic limbs in patients with NTOS and limb controls (Kruskal–Wallis test followed by Dunn post hoc test).
| Symptomatic Limbs n = 133 |
Asymptomatic Limbs n = 67 |
Control Limbs n = 200 |
H | p | |
|---|---|---|---|---|---|
| Dom/non-Dom, n | 74/59 | 26/41 | 100/100 | 0.08 # | |
| MR 60°/s, Nm/kg | 0.46 ± 0.16 a*** | 0.52 ± 0.16 b** | 0.58 ± 0.15 a***, b** | 46.6 | <0.0001 |
| LR 60°/s, Nm/kg | 0.20 ± 0.09 a*** | 0.23 ± 0.09 b** | 0.28 ± 0.09 a***, b** | 56.9 | <0.0001 |
| MR 180°/s, Nm/kg | 0.41 ± 0.16 a*** | 0.45 ± 0.15 b*** | 0.53 ± 0.14 a***, b*** | 48.5 | <0.0001 |
| LR 180°/s, Nm/kg | 0.20 ± 0.07 a*** | 0.22 ± 0.09 b** | 0.25 ± 0.07 a***, b** | 45.3 | <0.0001 |
| MR endurance, J/kg | 10.0 ± 6.1 a*** | 12.75 ± 6.0 b*** | 18.1 ± 5.5 a***, b*** | 125.9 | <0.0001 |
| LR endurance, J/kg | 2.49 ± 2.2 a***, c** | 3.56 ± 2.7 b***, c** | 5.4 ± 2.9 a***, b*** | 105.2 | <0.0001 |
Dom: dominant upper-limb; non-Dom: non-dominant upper-limb; MR 60°/s: medial rotators at 60°/s; LR 60°/s: lateral rotators at 60°/s; MR 180°/s: medial rotators at 180°/s; LR 180°/s: lateral rotators at 180°/s; Nm: Newton-meter; SD: standard deviation; #: χ2 test for the 3 populations. a: Significant difference between symptomatic limbs and controls; b: Significant difference between asymptomatic limbs and controls; c: Significant difference between symptomatic limbs and asymptomatic limbs. Dunn’s test: ** p ≤ 0.01; *** p ≤ 0.001. H: H-statistic of the Kruskal-Wallis test.