Use of Kinematics Variables to Distinguish Patients with Acute- subacute Non-Specific Neck Pain From Asymptomatic Subjects
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- Backgrounds Previous studies assessed differences in kinematic performance of fast axial neck rotations between neck pain patients and control populations using the DidRen laser sensorimotor test. However, researchers did not identify which kinematic variables were most discriminating. Objectives To evaluate which kinematic variables recorded using a validated sensorimotor test were most discriminating to distinguish patients with acute and subacute nonspecific neck pain (ANSP) from healthy participants (HCP) and predict ANSP . Method Twelve kinematic variables obtained from 69 participants including 38 ASNP and 31 HCP who had performed the DidRen laser test were analyzed. Multivariate logistic regression equation provided the most discriminating variables and evaluated their predictive values. Results Multivariate logistic regression identified 3 significant variables (1) DidRen time (p= .006; odd ratio (OR)=1.24; sensitivity=.58; specificity=.74), (2) average speed (p<.001; OR=1.45; sensitivity=.68; specificity=.87; and (3) Peak speed (p<.001; OR=.99; sensitivity=.74; specificity=.74). Conclusion DidRen time, average and peak speed fast axial neck rotations used together reliably predicted and discriminated ANSP from HCP participants. These findings could be used to objectify the sensorimotor status and progress of patients following treatment.