ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2026
Markerless motion capture to quantify disability and functional performance in spine patients: a concurrent validity study bridging laboratory biomechanics and clinical practice.
Article in European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundObjective assessment of functional mobility is helpful in evaluating disability and treatment outcomes in patients with degenerative spine disease. Traditional marker-based motion capture offers laboratory-grade accuracy but is limited by complex setup, soft-tissue artifact, and practical challenges in clinical settings. Consequently, there is a gap in scalable, accurate, and clinically feasible methods to objectively assess spine-related functional performance in real-world settings. Markerless motion capture, powered by computer vision and deep-learning algorithms, enables marker-free, rapid, and reproducible assessment of three-dimensional kinematics in clinic settings. PURPOSE: To evaluate the concurrent validity of a markerless motion capture system relative to a widely accepted reference method (marker-based motion capture) during gait and balance tasks in patients with spine pathology.
methodsA total of 116 participants (93 spine patients, 23 healthy controls) performed standardized gait and balance tasks captured simultaneously by marker-based and markerless systems. Agreement was examined using intraclass correlation coefficients (ICC), Bland-Altman analysis, root mean square deviation (RMSD), and Pearson correlation.
resultsAcross 580 gait and 348 balance trials, markerless motion capture demonstrated good to excellent agreement (ICC > 0.75) for trunk, lumbar, pelvic, and lower-extremity kinematics, with RMSD values ≤ 5°. Dynamic sagittal vertical axis (SVA) exhibited excellent reliability (ICC = 0.90, 95% CI: 0.84-0.94). Bland-Altman analysis showed minimal systematic bias. Balance assessments revealed excellent agreement for head sway in sagittal and coronal planes (ICC ≥ 0.97). However, transverse-plane rotations at the hip, knee, and ankle demonstrated poor agreement (ICC < 0.50), indicating current limitations for these specific parameters.
conclusionsMarkerless motion capture provides quantifiable, accurate, and clinically applicable measures of spine-related movement. Its efficiency, scalability, and accuracy support objective evaluation of disability, enable individualized rehabilitation, and facilitate longitudinal outcome monitoring, highlighting its potential for integration into standard clinical workflows and bridging the gap between laboratory-grade biomechanics and routine spine care.
Indexed as
Identifiers
42821089What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.