Accuracy of measuring scapular position and motion with a novel motion capture system
Background: Scapula kinematics is recognized to be a crucial variable in shoulder dysfunction. Nevertheless, quantitative scapula tracking and measurement are not part of the current clinical evaluation. The main concern is measurement accuracy. Methods: To assess the accuracy of the wearable sensor...
| Main Authors: | , , , , , , |
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| Format: | Article |
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Elsevier
2023-08-01
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| Series: | JSES Reviews, Reports, and Techniques |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S266663912300041X |
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| author | Matteo Mantovani, MSc, MBA Aaron Sciascia, PhD, ATC, PES, SMTC, FNAP Alessandro Varini, MSc Marco Muraccini, PhD Fabrizio Nardini, PhD Pietro Tonino, MD Benjamin W. Kibler, MD |
| author_facet | Matteo Mantovani, MSc, MBA Aaron Sciascia, PhD, ATC, PES, SMTC, FNAP Alessandro Varini, MSc Marco Muraccini, PhD Fabrizio Nardini, PhD Pietro Tonino, MD Benjamin W. Kibler, MD |
| author_sort | Matteo Mantovani, MSc, MBA |
| collection | DOAJ |
| description | Background: Scapula kinematics is recognized to be a crucial variable in shoulder dysfunction. Nevertheless, quantitative scapula tracking and measurement are not part of the current clinical evaluation. The main concern is measurement accuracy. Methods: To assess the accuracy of the wearable sensor technology Showmotion a cadaver experiment was designed, allowing a direct comparison between sensors directly pinned to the scapula and superficial sensors. A measurement protocol was adopted to evaluate errors in measurement, mimicking the suggested in vivo evaluation. Sensors were simultaneously placed above (supraspinal) and below (infraspinal) the scapular spine to determine if one placement resulted in fewer errors compared to the other. Results: Mean and standard deviations of the supraspinal sensor root mean square error (RMSE) in flexion-extension movements resulted in 3.59° ± 2.36°, 4.73° ± 2.98°, and 6.26° ± 3.62° for upward-downward rotation (up-down), anterior-posterior tilt and internal-external (intra-extra) rotation, respectively, while 2.16° ± 1.21°, 2.20° ± 1.02°, and 4.46° ± 2.16° for the infraspinal sensor. In abduction-adduction movements, mean and standard deviations of the supraspinal sensor RMSE resulted in 4.26° ± 2.98°, 5.68° ± 4.22°, and 7.04° ± 4.36° for up-down rotation, anterior-posterior tilt, and intra-extra rotation, respectively, while 2.38° ± 1.63°, 2.47° ± 1.77°, and 4.92° ± 3.14° for the infraspinal sensor. The same behavior was confirmed in shrug movements, where 4.35° ± 3.24°, 4.63° ± 3.09°, and 5.34° ± 6.67° are mean and standard deviations of the supraspinal sensor RMSE for up-down rotation, anterior-posterior tilt, and intra-extra rotation, respectively, while 2.76° ± 1.87°, 2.83° ± 2.53°, and 4.68° ± 5.22° for the infraspinal sensor. Conclusion: This method of quantitative assessment of scapular motion is shown to have good accuracy and low error between the sensor measurements and actual bone movement in multiple planes of scapular motion, both over the entire range of motion and in its individual segment intervals. The decreased amount of error with the infraspinal sensor placement suggests that placement is ideal for clinical quantitative assessment of scapular motion. |
| first_indexed | 2024-03-12T21:16:33Z |
| format | Article |
| id | doaj.art-1701cda6f98f465f91ffb6b5fe5326df |
| institution | Directory Open Access Journal |
| issn | 2666-6391 |
| language | English |
| last_indexed | 2024-03-12T21:16:33Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
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| series | JSES Reviews, Reports, and Techniques |
| spelling | doaj.art-1701cda6f98f465f91ffb6b5fe5326df2023-07-29T04:35:59ZengElsevierJSES Reviews, Reports, and Techniques2666-63912023-08-0133303311Accuracy of measuring scapular position and motion with a novel motion capture systemMatteo Mantovani, MSc, MBA0Aaron Sciascia, PhD, ATC, PES, SMTC, FNAP1Alessandro Varini, MSc2Marco Muraccini, PhD3Fabrizio Nardini, PhD4Pietro Tonino, MD5Benjamin W. Kibler, MD6NCS Lab Srl, Medical Device Research Lab, Carpi (Modena), Italy; Corresponding author: Matteo Mantovani, MSc, MBA, NCS Lab Srl, Medical Device Research Lab, Via Pola Esterna, 4/12, Carpi, 41012 MO, Italy.Institute of Clinical Outcomes and Research, Lexington Clinic, Lexington, KY, USANCS Lab Srl, Medical Device Research Lab, Carpi (Modena), ItalyNCS Lab Srl, Medical Device Research Lab, Carpi (Modena), ItalyNCS Lab Srl, Medical Device Research Lab, Carpi (Modena), ItalyDepartment of Orthopaedic Surgery and Rehabilitation, Stritch School of Medicine, Loyola University Chicago, Maywood, IL, USAShoulder Center of Kentucky, Lexington Clinic, Lexington, KY, USABackground: Scapula kinematics is recognized to be a crucial variable in shoulder dysfunction. Nevertheless, quantitative scapula tracking and measurement are not part of the current clinical evaluation. The main concern is measurement accuracy. Methods: To assess the accuracy of the wearable sensor technology Showmotion a cadaver experiment was designed, allowing a direct comparison between sensors directly pinned to the scapula and superficial sensors. A measurement protocol was adopted to evaluate errors in measurement, mimicking the suggested in vivo evaluation. Sensors were simultaneously placed above (supraspinal) and below (infraspinal) the scapular spine to determine if one placement resulted in fewer errors compared to the other. Results: Mean and standard deviations of the supraspinal sensor root mean square error (RMSE) in flexion-extension movements resulted in 3.59° ± 2.36°, 4.73° ± 2.98°, and 6.26° ± 3.62° for upward-downward rotation (up-down), anterior-posterior tilt and internal-external (intra-extra) rotation, respectively, while 2.16° ± 1.21°, 2.20° ± 1.02°, and 4.46° ± 2.16° for the infraspinal sensor. In abduction-adduction movements, mean and standard deviations of the supraspinal sensor RMSE resulted in 4.26° ± 2.98°, 5.68° ± 4.22°, and 7.04° ± 4.36° for up-down rotation, anterior-posterior tilt, and intra-extra rotation, respectively, while 2.38° ± 1.63°, 2.47° ± 1.77°, and 4.92° ± 3.14° for the infraspinal sensor. The same behavior was confirmed in shrug movements, where 4.35° ± 3.24°, 4.63° ± 3.09°, and 5.34° ± 6.67° are mean and standard deviations of the supraspinal sensor RMSE for up-down rotation, anterior-posterior tilt, and intra-extra rotation, respectively, while 2.76° ± 1.87°, 2.83° ± 2.53°, and 4.68° ± 5.22° for the infraspinal sensor. Conclusion: This method of quantitative assessment of scapular motion is shown to have good accuracy and low error between the sensor measurements and actual bone movement in multiple planes of scapular motion, both over the entire range of motion and in its individual segment intervals. The decreased amount of error with the infraspinal sensor placement suggests that placement is ideal for clinical quantitative assessment of scapular motion.http://www.sciencedirect.com/science/article/pii/S266663912300041XScapulaKinematicsScapular dyskinesisAccuracyEvaluationMotion analysis |
| spellingShingle | Matteo Mantovani, MSc, MBA Aaron Sciascia, PhD, ATC, PES, SMTC, FNAP Alessandro Varini, MSc Marco Muraccini, PhD Fabrizio Nardini, PhD Pietro Tonino, MD Benjamin W. Kibler, MD Accuracy of measuring scapular position and motion with a novel motion capture system JSES Reviews, Reports, and Techniques Scapula Kinematics Scapular dyskinesis Accuracy Evaluation Motion analysis |
| title | Accuracy of measuring scapular position and motion with a novel motion capture system |
| title_full | Accuracy of measuring scapular position and motion with a novel motion capture system |
| title_fullStr | Accuracy of measuring scapular position and motion with a novel motion capture system |
| title_full_unstemmed | Accuracy of measuring scapular position and motion with a novel motion capture system |
| title_short | Accuracy of measuring scapular position and motion with a novel motion capture system |
| title_sort | accuracy of measuring scapular position and motion with a novel motion capture system |
| topic | Scapula Kinematics Scapular dyskinesis Accuracy Evaluation Motion analysis |
| url | http://www.sciencedirect.com/science/article/pii/S266663912300041X |
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