Adrien Beaud , Quentin Lejeune , Hélène Pillet , Antoine Mazarguil , Josette Bertheau , Marie-Martine Lefèvre-Colau , Alexandra Rören
{"title":"Similarity of shoulder kinematics between people with subacromial pain syndrome and asymptomatic individuals: A study using inertial measurement units","authors":"Adrien Beaud , Quentin Lejeune , Hélène Pillet , Antoine Mazarguil , Josette Bertheau , Marie-Martine Lefèvre-Colau , Alexandra Rören","doi":"10.1016/j.clinbiomech.2025.106462","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Subacromial pain syndrome is the most common cause of shoulder pain and is associated with altered humeral and scapular kinematics. Symptoms can be improved by rehabilitation. Accurate tools to analyze shoulder kinematic curves are lacking.</div></div><div><h3>Methods</h3><div>A single-center prospective pilot study using inertial measurement units located on both arms and scapulae to assess bilateral arm elevation in the sagittal, scapular and frontal planes. Reparameterization and signal registration algorithms compared similarity of global shoulder and scapular kinematic curves from participants with subacromial pain syndrome before and after a short rehabilitation program, with a control template combining the curves of asymptomatic participants. A similarity score used curve comparisons; the more closely the curve shapes matched, the closer the score was to zero. We used a paired Wilcoxon test to compare the scores.</div></div><div><h3>Findings</h3><div>We included 9 right-handed symptomatic participants (10 shoulders): 2 males (22 %), mean (SD) age 53.8 (13.7) years, symptom duration 29 (23) months, pain (Numeric Rating Scale) 61.1 (22.4)/100, activity limitation (Quick-Dash): 48.3 (26.6)/100 points, and 10 asymptomatic age-matched right-handed participants (20 shoulders): 4 males (40 %), 54.2 (5.4) years old. Post-rehabilitation similarity scores decreased non-significantly for shoulder elevation (scapular and frontal planes), scapular lateral rotation (sagittal and scapular planes) and anterior-posterior tilt (scapular plane) and significantly for shoulder sagittal elevation (<em>P</em> = 0.004). Participant heterogeneity was high.</div></div><div><h3>Interpretation</h3><div>The similarity methodology, used for the first time in the context of subacromial pain syndrome, offers a new quantitative tool to assess kinematic changes, measure movement-related impairments and monitor patient progress.</div></div>","PeriodicalId":50992,"journal":{"name":"Clinical Biomechanics","volume":"123 ","pages":"Article 106462"},"PeriodicalIF":1.4000,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinical Biomechanics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0268003325000348","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, BIOMEDICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Subacromial pain syndrome is the most common cause of shoulder pain and is associated with altered humeral and scapular kinematics. Symptoms can be improved by rehabilitation. Accurate tools to analyze shoulder kinematic curves are lacking.
Methods
A single-center prospective pilot study using inertial measurement units located on both arms and scapulae to assess bilateral arm elevation in the sagittal, scapular and frontal planes. Reparameterization and signal registration algorithms compared similarity of global shoulder and scapular kinematic curves from participants with subacromial pain syndrome before and after a short rehabilitation program, with a control template combining the curves of asymptomatic participants. A similarity score used curve comparisons; the more closely the curve shapes matched, the closer the score was to zero. We used a paired Wilcoxon test to compare the scores.
Findings
We included 9 right-handed symptomatic participants (10 shoulders): 2 males (22 %), mean (SD) age 53.8 (13.7) years, symptom duration 29 (23) months, pain (Numeric Rating Scale) 61.1 (22.4)/100, activity limitation (Quick-Dash): 48.3 (26.6)/100 points, and 10 asymptomatic age-matched right-handed participants (20 shoulders): 4 males (40 %), 54.2 (5.4) years old. Post-rehabilitation similarity scores decreased non-significantly for shoulder elevation (scapular and frontal planes), scapular lateral rotation (sagittal and scapular planes) and anterior-posterior tilt (scapular plane) and significantly for shoulder sagittal elevation (P = 0.004). Participant heterogeneity was high.
Interpretation
The similarity methodology, used for the first time in the context of subacromial pain syndrome, offers a new quantitative tool to assess kinematic changes, measure movement-related impairments and monitor patient progress.
期刊介绍:
Clinical Biomechanics is an international multidisciplinary journal of biomechanics with a focus on medical and clinical applications of new knowledge in the field.
The science of biomechanics helps explain the causes of cell, tissue, organ and body system disorders, and supports clinicians in the diagnosis, prognosis and evaluation of treatment methods and technologies. Clinical Biomechanics aims to strengthen the links between laboratory and clinic by publishing cutting-edge biomechanics research which helps to explain the causes of injury and disease, and which provides evidence contributing to improved clinical management.
A rigorous peer review system is employed and every attempt is made to process and publish top-quality papers promptly.
Clinical Biomechanics explores all facets of body system, organ, tissue and cell biomechanics, with an emphasis on medical and clinical applications of the basic science aspects. The role of basic science is therefore recognized in a medical or clinical context. The readership of the journal closely reflects its multi-disciplinary contents, being a balance of scientists, engineers and clinicians.
The contents are in the form of research papers, brief reports, review papers and correspondence, whilst special interest issues and supplements are published from time to time.
Disciplines covered include biomechanics and mechanobiology at all scales, bioengineering and use of tissue engineering and biomaterials for clinical applications, biophysics, as well as biomechanical aspects of medical robotics, ergonomics, physical and occupational therapeutics and rehabilitation.