Journal
EUROPEAN SPINE JOURNAL
Volume 28, Issue 7, Pages 1572-1578Publisher
SPRINGER
DOI: 10.1007/s00586-019-06010-4
Keywords
Low back pain; Kinematic analysis; Fear of movement; Kinesiophobia
Categories
Funding
- JSPS KAKENHI [17K13080, 17H05915]
- Grants-in-Aid for Scientific Research [17H05915, 17K13080] Funding Source: KAKEN
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PurposeWe aimed to kinematically analyze lumbar bending and returning movements and clarify the relationship between fear of movement and kinematic output.MethodsWe recruited 45 participants with CLBP (i.e., >6months) and 20 healthy control (HC) participants with no history of CLBP. We used the numerical rating pain scale (NRS), Tampa Scale for Kinesiophobia (TSK-11), and Pain Self-Efficacy Questionnaire (PSEQ-2) as qualitative outcome measurements. CLBP participants were divided into two subgroups (high- and low-fear groups) based on the median split of the total TSK-11 score. In the kinematic recording session, a starting-cue beep signaled participants to bend forward using the lumbar region of their spine and then return to an upright posture, and we used a flexible twin-axis electrogoniometer to record the lumbar movements. The time series of lumbar movements was divided into four phases according to lumbar movement velocity, and we calculated the length (sec) of each phase.ResultsPhase 1 (duration prior to cue-induced movement initiation) and phase 3 (switch in the direction of lumbar movement from forward to backward) were significantly longer in the CLBP high-fear group compared with those in the CLBP low-fear group and HC group (p<0.05). The increased lengths of these two phases were positively correlated with not only pain intensity but also TSK-11 scores (p<0.05).ConclusionsThese results represent evidence of a particular lumbar movement pattern associated with kinesiophobia. These results might help to identify psychological factors that impact lumbar movement patterns in individuals with CLBP. [GRAPHICS] .
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