Measuring muscle and joint geometry parameters of a shoulder for modeling purposes

Breteler, Mary D. Klein; Spoor, C.W.; Helm, F.C.T. van der

doi:10.1016/s0021-9290(99)00122-0

Cited by 107 publications

(103 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[1][2][3] Altered scapular kinematics have been reported in patients with rotator-cuff disease, specifically, subacromial-impingement syndrome [3][4][5][6][7][8][9][10][11][12][13][14][15] and internal rotator-cuff impingement. 16 The reported altered scapular kinematic might contribute to the development of the pathology or result from adaptations to the rotator-cuff pathology.…”

mentioning

confidence: 99%

Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Timmons¹,

Thigpen²,

Seitz³

et al. 2012

Journal of Sport Rehabilitation

149

View full text Add to dashboard Cite

Context:The literature does not present a consistent pattern of altered scapular kinematics in patients with shoulder-impingement syndrome (SIS). Objectives: To perform meta-analyses of published comparative studies to determine the consistent differences in scapular kinematics between subjects with SIS and controls. In addition, the purpose was to analyze factors of the data-collection methods to explain the inconsistencies in reported kinematics. The results of this study will help guide future research and enable our understanding of the relationship between scapular kinematics and SIS. Evidence Acquisition: A search identified 65 studies; 9 papers met inclusion criteria. Sample sizes, means, and SDs of 5 scapular-kinematic variables were extracted or obtained from each paper's lead author. Standard difference in the mean between SIS and controls was calculated. Moderator variables were plane of arm elevation, level of arm elevation (ARM) and population (POP). Evidence Synthesis: Overall, the SIS group had less scapular upward rotation (UR) and external rotation (ER) and greater clavicular elevation (ELE) and retraction (RET) but no differences in scapular posterior tilt (PT). In the frontal plane, SIS subjects showed greater PT and ER, and in the scapular plane, less UR and ER and greater ELE and RET. There was also greater ELE and RET in the sagittal plane. There was less UR at the low ARM and greater ELE and RET at the high ARM with SIS. Athletes and overhead workers showed less UR, while athletes showed greater PT and workers showed less PT and ER. The general population with SIS had greater ELE and RET only. Conclusions: Subjects with SIS demonstrated altered scapular kinematics, and these differences are influenced by the plane, ARM, and POP. Athletes and overhead workers have a different pattern of scapular kinematics than the general population. The scapular plane is most likely to demonstrate altered kinematics. These factors should be considered when designing futures studies to assess the impact of altered kinematics in patients with SIS.

show abstract

mentioning

confidence: 99%

Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Timmons¹,

Thigpen²,

Seitz³

et al. 2012

Journal of Sport Rehabilitation

149

View full text Add to dashboard Cite

show abstract

“…There are nine kinematic coordinates subject to two holonomic constraints. Each body is given a mass M i and an inertia I i defined with respect to the centre of gravity (Klein Breteler et al 1999). The humerus and arm are considered to be a single body with the centre of gravity at the elbow joint HU.…”

Section: A Musculoskeletal Model Of the Human Shouldermentioning

confidence: 99%

“…The inertial data necessary to construct the dynamic model were taken from the literature (Klein Breteler et al 1999). The types of wrapping surfaces needed to define the muscle fibres and the maximum isometric strength values were taken from the VHP model (Garner and Pandy 2001).…”

Section: Model Outputmentioning

confidence: 99%

Improving anterior deltoid activity in a musculoskeletal shoulder model – an analysis of the torque-feasible space at the sternoclavicular joint

Ingram

Engelhardt

Farron

et al. 2015

Computer Methods in Biomechanics and Biomedical Engineering

View full text Add to dashboard Cite

Modelling the shoulder's musculature is challenging given its mechanical and geometric complexity. The use of the ideal fibre model to represent a muscle's line of action cannot always faithfully represent the mechanical effect of each muscle, leading to considerable differences between model-estimated and in vivo measured muscle activity. While the musculotendon force coordination problem has been extensively analysed in terms of the cost function, only few works have investigated the existence and sensitivity of solutions to fibre topology. The goal of this paper is to present an analysis of the solution set using the concepts of torque-feasible space (TFS) and wrench-feasible space (WFS) from cable-driven robotics. A shoulder model is presented and a simple musculo -tendon force coordination problem is defined. The ideal fibre model for representing muscles is reviewed and the TFS and WFS are defined, leading to the necessary and sufficient conditions for the existence of a solution. The shoulder model's TFS is analysed to explain the lack of anterior deltoid (DLTa) activity. Based on the analysis, a modification of the model's muscle fibre geometry is proposed. The performance with and without the modification is assessed by solving the musculo -tendon force coordination problem for quasi-static abduction in the scapular plane. After the proposed modification, the DLTa reaches 20% of activation.

show abstract

“…Thus, the model includes 29 muscles but a total of 138 contractile elements. The model parameters were obtained from cadaver studies by Klein-Breteler et al [17] Table 1. Initial and final electrode sets.…”

Section: Modelmentioning

confidence: 99%

Selection of muscle and nerve-cuff electrodes for neuroprostheses using customizable musculoskeletal model

Blana¹,

Hincapie²,

Chadwick³

et al. 2013

JRRD

View full text Add to dashboard Cite

Abstract-Neuroprosthetic systems based on functional electrical stimulation aim to restore motor function to individuals with paralysis following spinal cord injury. Identifying the optimal electrode set for the neuroprosthesis is complicated because it depends on the characteristics of the individual (such as injury level), the force capacities of the muscles, the movements the system aims to restore, and the hardware limitations (number and type of electrodes available). An electrode-selection method has been developed that uses a customized musculoskeletal model. Candidate electrode sets are created based on desired functional outcomes and the hardware limitations of the proposed system. Inverse-dynamic simulations are performed to determine the proportion of target movements that can be accomplished with each set; the set that allows the most movements to be performed is chosen as the optimal set. The technique is demonstrated here for a system recently developed by our research group to restore whole-arm movement to individuals with high-level tetraplegia. The optimal set included selective nerve-cuff electrodes for the radial and musculocutaneous nerves; single-channel cuffs for the axillary, suprascapular, upper subscapular, and long-thoracic nerves; and muscle-based electrodes for the remaining channels. The importance of functional goals, hardware limitations, muscle and nerve anatomy, and surgical feasibility are highlighted.

show abstract

Measuring muscle and joint geometry parameters of a shoulder for modeling purposes

Cited by 107 publications

References 18 publications

Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Scapular Kinematics and Subacromial-Impingement Syndrome: A Meta-Analysis

Improving anterior deltoid activity in a musculoskeletal shoulder model – an analysis of the torque-feasible space at the sternoclavicular joint

Selection of muscle and nerve-cuff electrodes for neuroprostheses using customizable musculoskeletal model

Contact Info

Product

Resources

About