Highlights: The combination of biomechanical analysis and open-access Kinovea software enables the study musculoskeletal articular wear experimentally reproduced tasks. repeated use right arm during indirect percussion abrasion in lithic production could increase changes bone robusticity specific muscle attachments observed osteoarchaeological record. Motion ranges postural angles can generate ...

Introduction: In clinical evaluation, the neurological area is one of most complex and extensive to be analyzed, besides that, when added with Neurophobia it becomes even more difficult. With COVID-19 Pandemic, there was an accelerated process migration from outpatient clinics digital platforms, requiring doctors update their way examining patients. The essential examination, tool that collabor...

Distal humerus fractures are uncommon, comprising 2% of all fractures and a third of all humerus fractures. Open fractures, comminuted fractures and fracture dislocation of the elbow are often accompanied by severe soft tissue damage. External fixation of the humerus is indicated when severe soft tissue damage or the presence of infection warrants initial alternative immobilisation of the fract...

We reviewed the results of reconstruction of 97 upper limbs in a consecutive series of 57 tetraplegic patients, treated from 1982 to 1990. Of these, 49 had functional and eight had cosmetic reconstructions. The principal functional objectives were to provide active elbow extension, hook grip, and key pinch. Elbow extension was provided in 34 limbs, using deltoid-to-triceps transfer. Hook grip w...

Our previous study has shown that supersonic shear imaging (SSI) can be accurately used to estimate muscle activity level. The present study was designed to assess the muscle activity level of the main elbow flexors using this technique during linear torque ramps of 30 s from 0 to 40% of the previously determined maximal voluntary contraction (MVC). The echographic probe was randomly placed on ...

Upper extremity musculoskeletal modeling is becoming increasingly sophisticated, creating a growing need for subject-specific muscle size parameters. One method for determining subject-specific muscle volume is magnetic resonance imaging (MRI). The purpose of this study was to determine the validity of MRI-derived muscle volumes in the human forearm across a variety of muscle sizes and shapes. ...

During the evolution from the lower animals to man, the upper limbs have acquired a great mobility, but at the cost of their stability. The reverse is true for the lower limbs. The muscular anomalies which are common in the upper limbs are largely explainable on a phylogenetic basis. The same is true for the vascular anomalies. However, such anomalies are usually seen singly and they are never ...

OBJECTIVE To compare oxygen saturation index (rSO2) obtained simultaneously in two different brachial muscles. DESIGN Prospective and observational study. SETTING Intensive care unit. PATIENTS Critically ill patients with community-acquired pneumonia. INTERVENTIONS Two probes of NIRS device (INVOS 5100) were simultaneously placed on the brachioradialis (BR) and deltoid (D) muscles. VA...

We hypothesized that the moment arms of muscles crossing the elbow vary substantially with forearm and elbow position and that these variations could be represented using a three-dimensional computer model. Flexion/extension and pronation/supination moment arms of the brachioradialis, biceps, brachialis, pronator teres, and triceps were calculated from measurements of tendon displacement and jo...