High Reproducibility of an Automated Measurement of Mobility for Patients with Axial Spondyloarthritis

Garrido-Castro, Juan Luis; Curbelo, Rafael; Mazzucchelli, Ramón; Domínguez-González, María E.; Gonzalez-Navas, C.; Robles, Bryan Josué Flores; Zarco, Pedro; Mulero, Juan; Cea‐Calvo, Luis; Arteaga, María Jesús Soler; Font‐Ugalde, Pilar; Carmona, Loreto; Collantes-Estévez, Eduardo

doi:10.3899/jrheum.170941

Cited by 7 publications

(7 citation statements)

References 19 publications

(32 reference statements)

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“…In this way, the system calculates the 3D positions of markers and estimates distances and angles by defining segments between markers. On the basis of this technique, the University of Cordoba Ankylosing Spondylitis Metrology Index (UCOASMI) was developed [14], which demonstrated higher levels of accuracy, reliability, and responsiveness than the BASMI in a multi-centre study [15]. However, because the UCOTrack requires a specific environment and time for data processing, feasibility issues make its use difficult in daily clinical practice.…”

Section: Introductionmentioning

confidence: 99%

Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Validation Study in Axial Spondyloarthritis

et al. 2020

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Portable inertial measurement units (IMUs) are beginning to be used in human motion analysis. These devices can be useful for the evaluation of spinal mobility in individuals with axial spondyloarthritis (axSpA). The objectives of this study were to assess (a) concurrent criterion validity in individuals with axSpA by comparing spinal mobility measured by an IMU sensor-based system vs. optical motion capture as the reference standard; (b) discriminant validity comparing mobility with healthy volunteers; (c) construct validity by comparing mobility results with relevant outcome measures. A total of 70 participants with axSpA and 20 healthy controls were included. Individuals with axSpA completed function and activity questionnaires, and their mobility was measured using conventional metrology for axSpA, an optical motion capture system, and an IMU sensor-based system. The UCOASMI, a metrology index based on measures obtained by motion capture, and the IUCOASMI, the same index using IMU measures, were also calculated. Descriptive and inferential analyses were conducted to show the relationships between outcome measures. There was excellent agreement (ICC > 0.90) between both systems and a significant correlation between the IUCOASMI and conventional metrology (r = 0.91), activity (r = 0.40), function (r = 0.62), quality of life (r = 0.55) and structural change (r = 0.76). This study demonstrates the validity of an IMU system to evaluate spinal mobility in axSpA. These systems are more feasible than optical motion capture systems, and they could be useful in clinical practice.

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Section: Introductionmentioning

confidence: 99%

Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Validation Study in Axial Spondyloarthritis

et al. 2020

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“…Of the included r-axSpA patients from COAST-V 81% were male median (IQR) age was 39 (34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47) and mean (SD) symptom duration 15.1 (9.9) years. The selection of nr-axSpA patients from COAST-X included 55% male patients, with a median age of 38 and mean symptom duration of 9.9 (8.8) years.…”

Section: Resultsmentioning

confidence: 99%

Test–retest reliability of outcome measures: data from three trials in radiographic and non-radiographic axial spondyloarthritis

2021

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ObjectivesAim of this study was to assess test–retest reliability of candidate instruments for the mandatory domains of the Assessment of Spondyloarthritis international Society (ASAS)-Outcome Measures in Rheumatology core set for axial spondyloarthritis (axSpA).MethodsScreening and baseline data from COAST-V, COAST-X and RAPID-axSpA was used to evaluate test–retest reliability of each candidate instrument for the mandatory domains (disease activity, pain, morning stiffness, fatigue, physical function, overall functioning and health). A maximum time interval of 28 days between both visits was used for inclusion in this study. Test–retest reliability was assessed by intraclass correlation coefficient (ICC). Bland and Altman plots provided mean difference and 95% limits of agreement, which were used to calculate the smallest detectable change (SDC). Data were analysed for radiographic and non-radiographic axSpA separately.ResultsGood reliability was found for Ankylosing Spondylitis Disease Activity Score (ICC 0.79, SDC 0.6), C reactive protein (ICC 0.72–0.79, SDC 12.3–17.0), Bath Ankylosing Spondylitis Functional Index (ICC 0.87, SDC 1.1) and 36-item Short-Form Health Survey (ICC Physical Component Summary 0.81, SDC 4.7, Mental Component Summary 0.80, SDC 7.3). Moderate reliability was found for Bath Ankylosing Spondylitis Disease Activity Index (ICC 0.72, SDC 1.1), patient global assessment (ICC 0.58, SDC 1.5), total back pain (ICC 0.64, SDC 1.3), back pain at night (ICC 0.67, SDC 1.3), morning stiffness (ICC 0.52–0.63, SDC 1.5–2.2), fatigue (ICC 0.65, SDC 1.3) and ASAS-Health Index (ICC 0.74, SDC 2.5). Reliability and SDC for the radiographic and non-radiographic axSpA subgroups were similar.ConclusionOverall reliability was good, and comparable levels of reliability were found for patients with radiographic and non-radiographic axSpA, even though most instruments were developed for radiographic axSpA. Composite measures showed higher reliability than single-item measures in assessing disease activity in patients with axSpA.

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“…World Health Organization (WHO) criteria were used for the diagnosis of osteopenia (i.e., T-score less than −1), osteoporosis (i.e., T-score less than −2.5), low BMD (Z-score less than −1) and very low BMD (Z-score less than −2) [ 16 ]. Spinal mobility was studied using both the total University of Cordoba Ankylosing Spondylitis Metrology Index (UCOASMI) and the individual items of the UCOASMI, which is a composite index based on an automated system that generates a cervical and vertebral mobility score from serial kinematic measurements [ 17 , 18 , 19 ]. Among other measures, it evaluates lumbar anterior flexion, lateral flexion and rotation in grades.…”

Section: Methodsmentioning

confidence: 99%

“…Spinal mobility was studied using both the total University of Cordoba Ankylosing Spondylitis Metrology Index (UCOASMI) and the individual items of the UCOASMI, which is a composite index based on an automated system that generates a cervical and vertebral mobility score from serial kinematic measurements [ 17 , 18 , 19 ]. Among other measures, it evaluates lumbar anterior flexion, lateral flexion and rotation in grades.…”

Section: Methodsmentioning

confidence: 99%

Prevalence and Associated Factors of Low Bone Mineral Density in the Femoral Neck and Total Hip in Axial Spondyloarthritis: Data from the CASTRO Cohort

Bautista-Aguilar

López-Medina

Ladehesa-Pineda

et al. 2021

JCM

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Studies on osteoporosis in axial spondyloarthritis (axSpA) have focused on the lumbar segment, and few studies have assessed bone mineral density (BMD) in the hip and femoral neck in these patients. The aim of this study was to evaluate the prevalence of low BMD and osteopenia in the total hip or femoral neck and the factors associated with these conditions in axSpA patients. This was a single-centre, observational, cross-sectional study among consecutive patients with axSpA according to the ASAS criteria from the CASTRO registry. All patients underwent total hip and femoral neck DXA BMD measurements. Low BMD was defined as a Z-score less than −1, and osteopenia was defined as a T-score less than −1. Multivariate logistic and generalised linear regressions were used to evaluate factors independently associated with low BMD and osteopenia in the hip or femoral neck and those associated with variability in BMD, respectively. A total of 117 patients were included, among which 30.8% were female and the mean age was 45 years. A total of 36.0% of patients had low BMD (28.1% in the total hip and 27.4% in the femoral neck), and 56.0% of patients had osteopenia (44.7% in the total hip and 53.8% in the femoral neck). A multivariate logistic regression showed that age, radiographic sacroiliitis and ASAS-HI were independently associated with low BMD in the total hip or femoral neck. Factors that were independently associated with osteopenia were Body Mass Index, disease duration, radiographic sacroiliitis and ASAS-HI. In conclusion, 36% of the patients with axSpA had low BMD in the total hip or femoral neck. A younger age and radiographic sacroiliitis were the most important factors associated with decreased BMD.

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High Reproducibility of an Automated Measurement of Mobility for Patients with Axial Spondyloarthritis

Abstract: Reproducibility of the UCOASMI seems very high, and apparently more reliable than conventional measures of mobility.

Cited by 7 publications

References 19 publications

Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Validation Study in Axial Spondyloarthritis

Measuring Spinal Mobility Using an Inertial Measurement Unit System: A Validation Study in Axial Spondyloarthritis

Test–retest reliability of outcome measures: data from three trials in radiographic and non-radiographic axial spondyloarthritis

Prevalence and Associated Factors of Low Bone Mineral Density in the Femoral Neck and Total Hip in Axial Spondyloarthritis: Data from the CASTRO Cohort

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