Three-dimensional functional evaluation of the shoulder complex using the Kinect™ sensor

2016 ◽  
Author(s):  
B. Bonnechère ◽  
V. Sholukha ◽  
L. Omelina ◽  
B. Jansen ◽  
S. Van Sint Jan
Keyword(s):  
Three Dimensional ◽  
Functional Evaluation ◽  
Shoulder Complex

The Spatial Dependency of Shoulder Muscle Demands for Seated Lateral Hand Force Exertions

2014 ◽  
Vol 30 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Alison C. McDonald ◽  
Elora C. Brenneman ◽  
Alan C. Cudlip ◽  
Clark R. Dickerson
Keyword(s):  
Repeated Measures ◽  
Muscle Activation ◽  
Three Dimensional ◽  
Emg Activity ◽  
Hand Position ◽  
Individual Muscle ◽  
Repeated Measures Analysis ◽  
Spatial Parameters ◽  
Shoulder Complex ◽  
The Right

As the modern workplace is dominated by submaximal repetitive tasks, knowledge of the effect of task location is important to ensure workers are unexposed to potentially injurious demands imposed by repetitive work in awkward or sustained postures. The purpose of this investigation was to develop a three-dimensional spatial map of the muscle activity for the right upper extremity during laterally directed submaximal force exertions. Electromyographic (EMG) activity was recorded from fourteen muscles surrounding the shoulder complex as the participants exerted 40N of force in two directions (leftward, rightward) at 70 defined locations. Hand position in both push directions strongly influenced total and certain individual muscle demands as identified by repeated measures analysis of variance (P< .001). During rightward exertions individual muscle activation varied from 1 to 21% MVE and during leftward exertions it varied from 1 to 27% MVE with hand location. Continuous prediction equations for muscular demands based on three-dimensional spatial parameters were created with explained variance ranging from 25 to 73%. The study provides novel information for evaluating existing and proactive workplace designs, and may help identify preferred geometric placements of lateral exertions in occupational settings to lower muscular demands, potentially mitigating fatigue and associated musculoskeletal risks.

INTRA- AND INTER-EXAMINER RELIABILITY OFIN VIVOTHREE-DIMENSIONAL MEASUREMENT OF THE SCAPULAR POSES USING A MARKER-BASED LOCATOR

2018 ◽  
Vol 30 (01) ◽  
pp. 1850001
Author(s):  
Mei-Ying Kuo ◽  
Shih-Wun Hong ◽  
Jia-Da Li ◽  
Tung-Wu Lu ◽  
Horng-Chaung Hsu
Keyword(s):  
Tracking System ◽  
Three Dimensional ◽  
Optical Tracking ◽  
Optical Tracking System ◽  
Rater Reliability ◽  
Reliability Models ◽  
Scapular Kinematics ◽  
Dimensional Measurement ◽  
Shoulder Flexion ◽  
Shoulder Complex

Accurate measurement of the three-dimensional scapular kinematics is essential for a better understanding of the mechanical interactions between the scapula and the other segments of the shoulder complex. The purposes of the study were: (i) to development a marker-based scapular locator for measuring scapular poses, and (ii) to determine the intra- and inter-rater reliability of the locator in terms of intra-class correlations (ICC). Twenty-two healthy volunteers without shoulder pathologies participated in the current study. Each subject was tested separately by two raters using the marker-based scapular locator while performing static shoulder flexion at 20, 40, 60, 80, 100 and 120 degrees in the scapular plane. Two reliability models, ICC[Formula: see text] and ICC[Formula: see text], were used to analyze the intra- and inter-rater reliability for scapular rotations and translations. Good to excellent intra-user reliability for both examiners was found for the scapular rotations (range: 0.82–0.99) and displacements (range: 0.72–0.99) for different shoulder flexion conditions. Good to excellent inter-rater reliability was found for scapular rotations (range: 0.63–0.95) and translations (range: 0.70–0.95) for all conditions. The results showed that high intra- and inter-examiner reliability could be achieved for scapular rotations and translation using the marker-based scapular locator. The proposed new scapular locator with an optical tracking system will be helpful for future applications in basic and clinical studies of the shoulder complex during arm movements.

Three-dimensional shoulder complex kinematics in individuals with upper extremity impairment from chronic stroke

2011 ◽  
Vol 34 (5) ◽  
pp. 402-407 ◽  
Author(s):  
Peter J. Rundquist ◽  
Michelle Dumit ◽  
Jeannie Hartley ◽  
Kendall Schultz ◽  
Margaret A. Finley
Keyword(s):  
Upper Extremity ◽  
Three Dimensional ◽  
Chronic Stroke ◽  
Shoulder Complex ◽  
Upper Extremity Impairment

Three-Dimensional in Vivo Kinematics of the Shoulder during Humeral Elevation

1998 ◽  
Vol 14 (3) ◽  
pp. 312-326 ◽  
Author(s):  
Timothy J. Koh ◽  
Mark D. Grabiner ◽  
John J. Brems
Keyword(s):  
Video Analysis ◽  
Three Dimensional ◽  
Movement Pattern ◽  
Helical Axis ◽  
Euler Angles ◽  
In Vivo Kinematics ◽  
Shoulder Complex ◽  
Shoulder Motion ◽  
Shoulder Kinematics

Shoulder kinematics, including scapular rotation relative to the trunk and humeral rotation relative to the scapula, were examined during humeral elevation in three vertical planes via video analysis of intracortical pins. Helical axis parameters provided an easily interpretable description of shoulder motion not subject to the limitations associated with Cardan/Euler angles. Between 30 and 150° of elevation in each plane, the scapula rotated almost solely about an axis perpendicular to the scapula. Additional scapular rotation appeared to support the notion that the scapula moves “toward” the plane of elevation. Humeral rotation took place mainly in the plane of the scapula independent of the plane of elevation. Many parameters of shoulder complex kinematics were quite similar across all planes of elevation, suggesting a consistent movement pattern with subtle differences associated with the plane of elevation.

Three-Dimensional Kinematic Modelling of the Human Shoulder Complex—Part II: Mathematical Modelling and Solution Via Optimization

1989 ◽  
Vol 111 (2) ◽  
pp. 113-121 ◽  
Author(s):  
S. T. Tu¨mer ◽  
A. E. Engin
Keyword(s):  
Optimization Problem ◽  
Kinematic Model ◽  
Three Dimensional ◽  
Joint Motion ◽  
Upper Arm ◽  
Complex Part ◽  
Kinematic Modelling ◽  
Shoulder Complex ◽  
The Individual

In this paper, individual joint sinus cones associated with the sternoclavicular, claviscapular, and glenohumeral joints of the three-dimensional kinematic model introduced in Part I for the human shoulder complex are quantitatively determined. First, mathematical description of the humerus orientation with respect to torso is given in terms of eight joint variables. Since the system is a kinematically redundant one, solution for the joint variables satisfying a prescribed humerus orientation is possible only if additional requirements are imposed; and the “minimum joint motion” criterion is introduced for this purpose. Two methods, namely the Lagrange multipliers and flexible tolerance methods, are formulated and tested for the optimization problem. The statistical in-vivo data base for the circumductory motion of the upper arm is employed to determine a set of joint variables via optimization, which are then utilized to establish the sizes and orientations of the elliptical cones for the individual joint sinuses. The results are discussed and compared with those given on the basis of measurements made on cadaveric specimens.

scholarly journals Three-dimensional Alignment of the Upper Extremity in the Standing Neutral Position in Healthy Subjects

2022 ◽  
Author(s):  
Yuki Yoshida ◽  
Noboru Matsumura ◽  
Yoshitake Yamada ◽  
Satoshi Hiraga ◽  
Kazunori Ishii ◽  
...  
Keyword(s):  
Upper Extremity ◽  
Internal Rotation ◽  
Glenohumeral Joint ◽  
Three Dimensional ◽  
Upper Extremities ◽  
Neutral Position ◽  
Functional Evaluation ◽  
Ct Scanner ◽  
Angular Rotation ◽  
The Mean

Abstract Background: Though alignment of the spine and lower extremities in the standing neutral position has been evaluated, a few studies evaluating the alignment of the upper extremities have also been made. This study assessed the normal alignment of the upper extremities in the standing neutral position and clarified the three-dimensional angular rotations of the upper extremity joints.Methods: Computed tomography (CT) images of 158 upper extremities from 79 healthy volunteers were prospectively acquired in the standing neutral position using an upright CT scanner. Three-dimensional coordinate systems of the thorax, scapula, humerus, and forearm were designated, and three-dimensional angular rotations of the scapulothoracic, glenohumeral, and elbow joints were calculated.Results: The mean angle of the scapulothoracic joint was 8.5° ± 5.9° of upward rotation, 28.7° ± 5.9° of internal rotation, and 7.9° ± 5.2° of anterior inclination. The mean angle of the glenohumeral joint was 4.4° ± 5.9° of abduction, 9.4° ± 12.3° of internal rotation, and 0.3° ± 4.4° of extension. The mean angle of the elbow joint was 9.6° ± 3.7° of valgus, 88.8° ± 14.3° of pronation, and 15.4° ± 4.2° of flexion. Correlations in angular rotation values were found, and interactions for keeping the upper extremities in a neutral position were observed.Conclusions: This study clarified the three-dimensional angular rotation of upper extremity joints in the standing neutral position using an upright CT scanner. Our results may provide important insights for the functional evaluation of upper extremity alignment.

Three-Dimensional Motion of the Shoulder Complex during Activities of Daily Living in Youths with Hypermobile Ehlers-Danlos Syndrome

2021 ◽  
Vol 102 (10) ◽  
pp. e109
Author(s):  
Joshua Leonardis ◽  
Anahita Qashqai ◽  
Olivia Wilwert ◽  
Alyssa Schnorenberg ◽  
Michael Muriello ◽  
...  
Keyword(s):  
Activities Of Daily Living ◽  
Daily Living ◽  
Three Dimensional ◽  
Ehlers Danlos Syndrome ◽  
Shoulder Complex ◽  
Danlos Syndrome
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