Cited by 16Musculoskeletal pain and rehabilitationSpine and Intervertebral Disc PathologyLower Extremity Biomechanics and Pathologies

Individual characteristics of reliable lumbar coupling motions

Yun, Woo-Suck, Kim, Hyunho, Ahn, Ji Hoon, Park, Young-Bae, Park, Young-Jae·2015·European Spine Journal

Abstract

Introduction Coupling motions (CMs) are the motions occurring in different directions around the primary motion. As low back pain (LBP) is known to be associated with lumbar CMs, some studies measured lumbar CMs using the microelectromechanical system inertial measurement unit (MEMS-IMU) because of its low cost and small size. This study aimed to examine the reliability of lumbar CM measurements using the MEMS-IMU and to classify the individual characteristics of lumbar CMs.Methods MEMS-IMUs were attached to the two lumbar points (L₁, L₅) of 19 male volunteers (age, 24.3 ± 1.2 years). Following an instructional video and audio recording, they conducted the six lumbar movements three times: flexion and extension, left and right lateral bending, and left and right rotation. The six lumbar movements were repeated after 1 h. Raw data were transformed into angle data using MATLAB. Intraclass correlation coefficients (ICCs) were calculated to evaluate intratest repeatability and test-retest reliability. Finally, angle data were analyzed to examine whether individual characteristics of lumbar CMs could be identified.Results Lumbar CM measurements showed fair to good or excellent intratest repeatability and test-retest reliability, ranging from 0.669 to 0.997 of the ICCs. All lumbar CMs could be categorized into six types, and flexion and extension CMs were more prominent than other CMs.Conclusions Lumbar CM measurements obtained using the MEMS-IMU are reliable, and identifying the individual variations of lumbar CMs may be helpful for alleviating chronic or recurrent LBP.

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Crossref · 10.1007/s00586-015-4081-0

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  • Trunk reliability results are consistent and demonstrate good to excellent intra-rater reliability (ICC ≥0.8 except coronal plane fair to excellent 0.67 to 0.93).

    “Results from these three studies are consistent and demonstrate good to excellent intra-rater reliability (ICC ≥ 0.8 except for coronal plane which is fair to excellent (0.67 to 0.93)) [46,66,68].”

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Authors
Yun, W.-S., Kim, H., Ahn, J. H., Park, Y.-B., & Park, Y.-J.
Affiliations
Kyung Hee University (KR)
Corresponding author
  • Park, Young-Bae
  • Park, Young-Jae
Venue
European Spine Journal
Published
2015-06-24
Volume
24
Issue
9
Pages
1917-1925
ISSN
  • 0940-6719 (ISSN-L)
  • 1432-0932
OpenAlex
W2161015456
Cited by
16
References
29
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2022: 3 · 2020: 1 · 2019: 3 · 2018: 1 · 2016: 1
FWCI
0.48
Type
journal article
Language
en
Open access
closed
Locations
  • European Spine Journal (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology › Musculoskeletal pain and rehabilitation
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Spine and Intervertebral Disc Pathology
  • Physical Sciences › Engineering › Biomedical Engineering › Lower Extremity Biomechanics and Pathologies
Keywords
low back pain, MEMS inertial measurement unit, test-retest reliability, intraclass correlation coefficient, lumbar flexion and extension, lateral bending, lumbar rotation, interindividual variability, lumbar kinematics
MeSH terms
Adult, Humans, Lumbar Vertebrae, Male, Movement, Rotation, Reproducibility of Results, Range of Motion, Articular, Low Back Pain, Arthrometry, Articular, Young Adult

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