A multibody biomechanical model of the upper limb including the shoulder girdle

2012 ◽  
Vol 28 (1-2) ◽  
pp. 83-108 ◽  
Author(s):  
Carlos Quental ◽  
João Folgado ◽  
Jorge Ambrósio ◽  
Jacinto Monteiro
Keyword(s):  
Upper Limb ◽  
Biomechanical Model ◽  
Shoulder Girdle

scholarly journals Treatment Strategies for Chronic Cases

2003 ◽  
Vol 8 (1) ◽  
pp. 37-39
Author(s):  
Susan M Lord
Keyword(s):  
Chronic Pain ◽  
Upper Limb ◽  
Treatment Strategy ◽  
Treatment Strategies ◽  
Shoulder Girdle ◽  
Somatic Pain ◽  
Levels Of Evidence ◽  
Whiplash Associated Disorders ◽  
Chronic Whiplash ◽  
Head Neck

The treatment of chronic somatic pain, including pain referred to the head, neck, shoulder girdle and upper limb from somatic structures, is addressed. Levels of evidence for the various treatments that have been prescribed for chronic whiplash associated disorders are considered. The challenge to find a treatment strategy for chronic pain after whiplash that completely relieves the condition and prevents its sequelae is reviewed.

Electromyographic activity in the immobilized shoulder girdle musculature during contralateral upper limb movements

2004 ◽  
Vol 13 (6) ◽  
pp. 583-588 ◽  
Author(s):  
Jay Smith ◽  
Denny J. Padgett ◽  
Diane L. Dahm ◽  
Kenton R. Kaufman ◽  
Shawn P. Harrington ◽  
...  
Keyword(s):  
Upper Limb ◽  
Shoulder Girdle ◽  
Electromyographic Activity ◽  
Limb Movements ◽  
Upper Limb Movements

scholarly journals Marker-Based Method for Analyzing the Three-Dimensional Upper Body Kinematics of Violinists and Violists: Development and Clinical Feasibility

2019 ◽  
Vol 34 (4) ◽  
pp. 179-190 ◽  
Author(s):  
Edward Wolf ◽  
Dirk Möller ◽  
Nikolaus Ballenberger ◽  
Karsten Morisse ◽  
Kristoff Zalpour
Keyword(s):  
Upper Limb ◽  
Spherical Surface ◽  
Body Movement ◽  
Three Dimensional ◽  
Biomechanical Model ◽  
Upper Body ◽  
Anatomical Landmarks ◽  
3D Motion ◽  
3D Motion Analysis ◽  
The Right

AIMS: High string players (violin and viola) often suffer from musculoskeletal disorders. Although 3D motion analysis has proved helpful in diagnosing different musculoskeletal syndromes and identifying injurious movement patterns in violin and viola performance, more detailed analyses of upper body movement strategies and especially of the shoulder complex have not yet been recorded. The use of spherical surface markers on some anatomical landmarks is, however, inappropriate when an instrument is being played. The aim of this study was to develop and evaluate a novel marker-based method for analyzing upper body kinematics of high string players using conditions specific to violin and viola playing. METHODS: A custom upper body marker set was developed and a biomechanical model applied to 3D motion capture data of the pelvis, thorax, spine, head, and both upper limbs (scapula, upper arm, forearm, hand) of 12 professional violinists, to assess its clinical feasibility. FINDINGS: Lumbar and thoracic spine, thorax, neck, and left upper limb were quite static, while extensive motion occurred in the right upper limb. Most rotation angles showed a reasonable intersubject variability except for glenohumeral and wrist joints. Significant differences were observed between G- and D-string bowing, especially in the left wrist and right shoulder joints. INTERPRETATION: This study suggests that the proposed method is a valid tool for quantifying upper body movements in violin and viola performance. With the extended upper body model, it will improve understanding of the motor strategies adopted by high string players and may contribute to injury prevention, diagnosis, and treatment.

Multibody System of the Upper Limb Including a Reverse Shoulder Prosthesis

2013 ◽  
Vol 135 (11) ◽  
Author(s):  
C. Quental ◽  
J. Folgado ◽  
J. Ambrósio ◽  
J. Monteiro
Keyword(s):  
Upper Limb ◽  
Biomechanical Model ◽  
Shoulder Prosthesis ◽  
Reverse Shoulder Prosthesis ◽  
Moment Arms ◽  
Force Sharing ◽  
Joint Reaction Forces ◽  
Reaction Forces ◽  
Teres Major ◽  
Teres Minor

The reverse shoulder replacement, recommended for the treatment of several shoulder pathologies such as cuff tear arthropathy and fractures in elderly people, changes the biomechanics of the shoulder when compared to the normal anatomy. Although several musculoskeletal models of the upper limb have been presented to study the shoulder joint, only a few of them focus on the biomechanics of the reverse shoulder. This work presents a biomechanical model of the upper limb, including a reverse shoulder prosthesis, to evaluate the impact of the variation of the joint geometry and position on the biomechanical function of the shoulder. The biomechanical model of the reverse shoulder is based on a musculoskeletal model of the upper limb, which is modified to account for the properties of the DELTA® reverse prosthesis. Considering two biomechanical models, which simulate the anatomical and reverse shoulder joints, the changes in muscle lengths, muscle moment arms, and muscle and joint reaction forces are evaluated. The muscle force sharing problem is solved for motions of unloaded abduction in the coronal plane and unloaded anterior flexion in the sagittal plane, acquired using video-imaging, through the minimization of an objective function related to muscle metabolic energy consumption. After the replacement of the shoulder joint, significant changes in the length of the pectoralis major, latissimus dorsi, deltoid, teres major, teres minor, coracobrachialis, and biceps brachii muscles are observed for a reference position considered for the upper limb. The shortening of the teres major and teres minor is the most critical since they become unable to produce active force in this position. Substantial changes of muscle moment arms are also observed, which are consistent with the literature. As expected, there is a significant increase of the deltoid moment arms and more fibers are able to elevate the arm. The solutions to the muscle force sharing problem support the biomechanical advantages attributed to the reverse shoulder design and show an increase in activity from the deltoid, teres minor, and coracobrachialis muscles. The glenohumeral joint reaction forces estimated for the reverse shoulder are up to 15% lower than those in the normal shoulder anatomy. The data presented here complements previous publications, which, all together, allow researchers to build a biomechanical model of the upper limb including a reverse shoulder prosthesis.

Anatomy for the Acupuncturist – Facts & Fiction 3: Upper & Lower Extremity

2003 ◽  
Vol 21 (4) ◽  
pp. 112-122 ◽  
Author(s):  
Elmar Peuker ◽  
Mike Cummings
Keyword(s):  
Lower Extremity ◽  
Upper Limb ◽  
Lower Limb ◽  
Shoulder Girdle ◽  
Intended Target ◽  
Anatomy Knowledge

Anatomy knowledge, and the skill to apply it, is arguably the most important facet of safe and competent acupuncture practice. The authors believe that an acupuncturist should always know where the tip of their needle lies with respect to the relevant anatomy so that vital structures can be avoided and so that the intended target for stimulation can be reached. This article describes the anatomy of the upper limb and shoulder girdle, and lower limb and pelvis, relevant to safe needling practice.

Direct Kinematic Modeling of the Upper Limb During Trunk-Assisted Reaching

2011 ◽  
Vol 27 (3) ◽  
pp. 272-277 ◽  
Author(s):  
Sylvain Hanneton ◽  
Svetlana Dedobbeler ◽  
Thomas Hoellinger ◽  
Agnès Roby-Brami
Keyword(s):  
Upper Limb ◽  
Computer Animation ◽  
Healthy Subjects ◽  
Kinematic Model ◽  
Biomechanical Model ◽  
Prediction Errors ◽  
Anatomical Landmarks ◽  
Kinematic Modeling ◽  
Joint Angles ◽  
Kinematic Method

The study proposes a rigid-body biomechanical model of the trunk and whole upper limb including scapula and the test of this model with a kinematic method using a six-dimensional (6-D) electromagnetic motion capture (mocap) device. Large unconstrained natural trunk-assisted reaching movements were recorded in 7 healthy subjects. The 3-D positions of anatomical landmarks were measured and then compared to their estimation given by the biomechanical chain fed with joint angles (the direct kinematics). Thus, the prediction errors was attributed to the different joints and to the different simplifications introduced in the model. Large (approx. 4 cm) end-point prediction errors at the level of the hand were reduced (to approx. 2 cm) if translations of the scapula were taken into account. As a whole, the 6-D mocap seems to give accurate results, except for pronosupination. The direct kinematic model could be used as a virtual mannequin for other applications, such as computer animation or clinical and ergonomical evaluations.

Biomechanical model of pronation efficiency: New insight into skeletal adaptation of the hominoid upper limb

2008 ◽  
Vol 135 (3) ◽  
pp. 293-300 ◽  
Author(s):  
Ignasi Galtés ◽  
Xavier Jordana ◽  
Mònica Cos ◽  
Assumpció Malgosa ◽  
Joan Manyosa
Keyword(s):  
Upper Limb ◽  
Biomechanical Model ◽  
Skeletal Adaptation ◽  
Insight Into

scholarly journals Posterior Interosseous Fascicular Constriction Within the Radial Nerve in a Diabetic Patient With Bilateral Neuralgic Amyotrophy: A Case Report

2021 ◽  
Vol 12 ◽  
Author(s):  
Woojun Kim ◽  
Soo Hwan Kang ◽  
Jae Young An
Keyword(s):  
Upper Limb ◽  
Radial Nerve ◽  
Clinical Symptoms ◽  
Early Recognition ◽  
Shoulder Girdle ◽  
Sudden Onset ◽  
Left Forearm ◽  
Main Trunk ◽  
Neuralgic Amyotrophy

Background: Neuralgic amyotrophy (NA) is an acute, monophasic, painful inflammatory dysimmune focal, or multifocal mononeuropathy. The lesion in NA is not always restricted to the brachial plexus but also involves individual nerves or branches. The prognosis of NA is less favorable than previously assumed, but the reasons for poor recovery remain unknown. Nerve constriction may be one of the causes of poor prognosis in NA.Case Presentation: Herein, we described a 54-year-old male with a history of type 2 diabetes in whom bilateral neuralgic amyotrophy developed with constriction of the posterior interosseous fascicle within the radial nerve. The patient experienced sudden-onset severe pain in both shoulders followed, 2 days later, by weakness in bilateral shoulders and the left forearm extensors over the subsequent month. The left forearm extensors were more severely affected than both shoulder girdle muscles. He noted a 7-kg weight loss for 1 month before pain onset. After diagnosing diabetic NA based on the clinical symptoms, imaging, and electrophysiological studies, treatment with systemic steroids improved pain and weakness in both shoulder muscles. Weakness in the left forearm extensors persisted after 1 month of steroid treatment. Follow-up ultrasound revealed constriction of the posterior interosseous fascicle within the main trunk of the left radial nerve at the elbow. Surgical exploration at 6 months after onset identified fascicle constriction, for which neurolysis was performed. Weakness in the extensors of the wrist and fingers did not improve during the 16-month follow-up.Conclusion: A single constriction of the fascicle within a peripheral nerve may often be under-recognized if NA presents with variable degrees of weakness in bilateral upper limbs. Furthermore, fascicular constriction without edema of the parent nerve may be easily missed on the initial ultrasound. A lack of early recognition of nerve constriction and delay in surgical intervention can result in unfavorable outcomes. The physician should consider the possibility of the fascicular constriction when evaluating patients suspected of brachial NA with significant weakness in the distal upper limb compared to the proximal weakness or weakness of the distal upper limb that does not improve over time.

Sign in / Sign up

Export Citation Format

Share Document