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Reliability of Postural Control During Double-Leg Standing in Subjects With Nonspecific Chronic Low Back Pain: Dual-Task Paradigm and Manipulated Visual and Somatosensory Inputs Publisher Pubmed



Karimi Ghasem Abad S1 ; Akhbari B1 ; Salavati M1 ; Talebian Moghaddam S2 ; Saeedi A3 ; Seydi M1 ; Ahangari M4 ; Negahban H5
Authors

Source: Journal of Bodywork and Movement Therapies Published:2021


Abstract

Background: The aim of this study is to evaluate the test-retest reliability of the Center of Pressure (COP) parameters in quiet double-leg standing in subjects with Non-Specific Chronic Low Back Pain (NSCLBP) during dual taking associated with manipulated visual and somatosensory inputs. Materials and methods: In this observational cross-sectional study, the static balance of thirty NSCLBP patients were assessed during a double-leg stance by using the force platform. Subjects were accosted by manipulated somatosensory and visual inputs during dual taking in eight different conditions (with and without vibration, eyes-open and eyes-closed, and with and without auditory Stroop test). The COP parameters were recorded as follows: range sideways and range fore-aft as well as mean velocity and area variables. The cognitive task parameters included the reaction time and error ratio. The intra-class correlation coefficient (ICC) was computed to assess the intersession reliability of COP parameters. Results: in intersession, range sideways, range fore-aft, and mean velocity measures possessed moderate to high ICC, but area owned high ICC only in one condition (double-leg stance, eyes-close, with vibration, and with auditory Stroop test). Notably, other conditions had low ICC, and moderate to high and low to very high ICC were reported for reaction time and error ratio. Conclusion: Among the parameters studied in the present study, the mean velocity measure seems to be the most reliable variable of postural control in the subjects with NSLBP especially in more challenging conditions, i.e., quiet double-leg standing with eyes closed and adding vibratory inputs during dual-tasking. © 2020 Elsevier Ltd
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