Table 7.
Construct validity of clinical and performance tests
| Variable (n = 42) | NDI | SF36-PCS | NRS (P.P) | ||||
|---|---|---|---|---|---|---|---|
| Spearman (rho) | p-value | Spearman (rho) | p-value | Spearman (rho) | p-value | ||
| CCFT | -0.40 | <0.01 | 0.56 | <0.01 | -0.37 | 0.02 | |
| ROM | Flexion | -0.47 | <0.01 | 0.31 | 0.04 | -0.46 | <0.01 |
| Extension | -0.65 | <0.01 | 0.46 | <0.01 | -0.74 | <0.01 | |
| Left rotation | -0.47 | <0.01 | 0.46 | <0.01 | -0.51 | <0.01 | |
| Right rotation | -0.54 | <0.01 | 0.47 | <0.01 | -0.53 | <0.01 | |
| Left lateral flexion | -0.64 | <0.01 | 0.46 | <0.01 | -0.67 | <0.01 | |
| Right lateral flexion | -0.62 | <0.01 | 0.45 | <0.01 | -0.66 | <0.01 | |
| JPE | Flexion | -0.05 | 0.75 | -0.17 | 0.27 | -0.02 | 0.90 |
| Extension | -0.04 | 0.82 | 0.07 | 0.65 | -0.13 | 0.40 | |
| Left rotation | 0.25 | 0.11 | -0.20 | 0.20 | 0.20 | 0.20 | |
| Right rotation | 0.23 | 0.14 | -0.11 | 0.51 | 0.15 | 0.36 | |
| DCE | -0.33 | 0.047 | 0.14 | 0.41 | -0.36 | 0.03 | |
| SWAY | Romberg EO (CEA) | 0.12 | 0.45 | -0.26 | 0.09 | 0.04 | 0.80 |
| Romberg EO (A/P) | 0.11 | 0.49 | -0.26 | 0.10 | 0.08 | 0.63 | |
| Romberg EO (M/L) | 0.18 | 0.26 | -0.31 | 0.05 | 0.13 | 0.41 | |
| Romberg EO (COP) | -0.02 | 0.92 | -0.34 | 0.09 | -0.04 | 0.85 | |
| Romberg EC (CEA) | 0.38 | 0.01 | -0.49 | <0.01 | 0.33 | 0.04 | |
| Romberg EC (A/P) | 0.40 | <0.01 | -0.49 | <0.01 | 0.35 | 0.02 | |
| Romberg EC (M/L) | 0.31 | 0.05 | -0.39 | 0.01 | 0.24 | 0.13 | |
| Romberg EC (COP) | 0.09 | 0.66 | -0.37 | 0.07 | 0.21 | 0.31 | |
| SLS (CEA)* | 0.35 | 0.04 | 0.33 | 0.06 | 0.39 | 0.02 | |
| SLS (A/P)* | 0.38 | 0.02 | -0.37 | 0.03 | 0.36 | 0.04 | |
| SLS (M/L)* | 0.29 | 0.09 | -0.32 | 0.06 | 0.32 | 0.06 | |
| SLS (COP)* | -0.14 | 0.57 | -0.26 | 0.28 | -0.06 | 0.80 | |
| PPT | Tibialis anterior | -0.28 | 0.08 | 0.13 | 0.42 | -0.34 | 0.03 |
| C3-C4 | -0.41 | <0.01 | 0.31 | 0.05 | -0.37 | 0.02 | |
| Infraspinatus | -0.33 | 0.03 | 0.25 | 0.11 | -0.43 | <0.01 | |
| GS | Tester A | -0.80 | <0.01 | 0.63 | <0.01 | -0.69 | <0.01 |
| Tester B | -0.51 | <0.01 | 0.49 | <0.01 | -0.42 | <0.01 | |
| SPNT | Tester A | -0.49 | <0.01 | 0.39 | 0.01 | -0.55 | <0.01 |
| Tester B | -0.52 | <0.01 | 0.45 | <0.01 | -0.42 | <0.01 | |
Neck Disability Index (NDI), Physical Component Score of SF 36 (SF36-PCS), Mental Component Score of SF 36 (SF36-MCS) and Present Pain (P.P.) intensity – Numeric Rating Scale (NRS).
Romberg eyes open (Romberg EO), Romberg Eyes closed (Romberg EC), Single Leg Stance (SLS), Confidence Ellipse Areal (CEA), Centre of Pressure path length (COP), Anterior/Posterior displacement (A/P), Medial Lateral displacement (M/L).
*(n=36).