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Related Experiment Video

Updated: May 21, 2026

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
10:07

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

Published on: February 10, 2015

Identification of scapular kinematics using surface mapping: a validation study.

J M Mattson1, S A Russo, W C Rose

  • 1Human Performance Lab, Biomechanics and Movement Science Program, Department of Kinesiology and Applied Physiology, University of Delaware, Newark, DE 19716, USA. jeffm@udel.edu

Journal of Biomechanics
|June 26, 2012
PubMed
Summary
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This study presents a novel, noninvasive method using motion capture to measure scapular kinematics. This technique offers a practical and accurate alternative for assessing shoulder blade movement in conditions like brachial plexus birth palsy (BPBP).

Area of Science:

  • Biomechanics
  • Medical Imaging
  • Orthopedics

Background:

  • Scapular kinematics are crucial for shoulder function.
  • Existing methods for measuring scapular motion can be invasive or complex.
  • Brachial plexus birth palsy (BPBP) often involves altered scapular positioning.

Purpose of the Study:

  • To develop and validate a noninvasive, computational surface mapping technique for measuring scapular kinematics.
  • To assess the accuracy of this novel method compared to traditional landmark palpation.
  • To provide a practical tool for clinical assessment in conditions like BPBP.

Main Methods:

  • Created subject-specific scapular templates from palpated landmarks in a neutral position.
  • Used approximately 300 markers to create a surface map over the scapula in various arm positions.

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Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
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Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

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Last Updated: May 21, 2026

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
10:07

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact

Published on: February 10, 2015

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
06:09

Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography

Published on: March 12, 2021

  • Iteratively fit the neutral template to the surface map to estimate scapular orientation.
  • Compared estimated orientation to orientation derived from palpated landmarks.

    • Main Results:

    • The novel surface mapping technique demonstrated high accuracy.
    • The largest mean difference in orientation was 3.8° with an RMS error of 5.9°.
    • The method is practical for individuals with prominent scapulae, such as BPBP patients.

    Conclusions:

    • The developed computational surface mapping approach is a viable and accurate noninvasive method for measuring scapular kinematics.
    • This technique offers a practical alternative to existing clinical methods.
    • It holds potential for facilitating clinical determination of the scapula's role in children with BPBP.