Measurements of cervical range of motion using an optical motion capture system: Repeatability and validity.

Abstract:

:The current study aimed to assess the repeatability and validity of cervical range of motion (CROM) measurements using an optical motion capture system (OMCS), compared with a CROM device. A total of 20 healthy volunteers were selected and enrolled in the current study after informed consent was received. The motion of the cervical spine in all directions was measured using the OMCS and CROM devices. Reproducibility of data was assessed using the intra-group correlation coefficient (ICC), standard error of measurement (SEM) and minimum detectable change (MDC). Validity was assessed using the coefficient of determination (R2) in combination with Pearson's correlation coefficient. Bland-Altman plot were presented for the two measurement methods. The range of motion (ROM) was measured by using the OMCS and the CROM device during the same session. Both procedures evidenced high ICCs [OMCS: ICC (1,2) =0.802-0.981; CROM device: ICC (1,2) =0.768-0.948], low SEM values (OMCS: 0.98°-1.38°; CROM device: 1.04°-2.45°) and low MDC values (OMCS: 2.72°-3.81°; CROM device: 2.89°-6.78°). A high R2 (0.568-0.882) and Pearson's correlation coefficient (0.753-0.939) were determined. The Bland-Altman plots demonstrated that most of the data were within the 95% consistency limit. In summary, the OMCS has good repeatability and validity when measuring CROM and is an effective way to evaluate cervical vertebral range of motion.

journal_name

Exp Ther Med

authors

Feng M,Liang L,Sun W,Liu GW,Yin X,Han T,Wei X,Zhu L

doi

10.3892/etm.2019.8105

subject

Has Abstract

pub_date

2019-12-01 00:00:00

pages

4193-4202

issue

6

eissn

1792-0981

issn

1792-1015

pii

ETM-0-0-8105

journal_volume

18

pub_type

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