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Showing 1 to 11 of 11 for “"Shoulder Muscles"”.
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EMG-EMG Coherence Analysis of Elbow and Shoulder Muscles
… fixed pattern of activation across a set of muscles. The neural mechanisms underlying muscle synergies remain to be fairly unknown. Through a muscle synergy study [13], co-activation in muscle pairs was discovered through a non-negative matrix factorization: NMF) analysis. In order to …
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Stability of the Shoulder Complex during Manual Exertions
Shoulder musculoskeletal disorders (MSDs) are a major cause of morbidity and pain in the modern working population. Epidemiological literature suggests that forceful arm exertions pose an increased risk for shoulder MSD development. Although several previous studies have reported a significant …
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Construction and assessment of a computer graphics-based model for wheelchair propulsion
… analyses by determining in vivo estimates of shoulder muscle and joint contact forces. Current models do not include deep shoulder muscles. Also, patient-specific models have not been generated for persons with tetraplegia, so the shoulder muscle contribution to propulsion in this population …
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The Effect of McConnell Shoulder Taping on Shoulder Muscle EMG and Shoulder Torque Productions in Subjects With Anterior Shoulder Instability
<p>Introduction: Anterior shoulder instability (ASI), a common clinical problem, causes significant functional impairments. Despite little evidence to support its use, rehabilitation directed at the unstable glenohumeral joint often includes McConnell shoulder taping. This taping technique consists …
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Ergonomic evaluation of shoulder muscle activation during light weight hand tool exertion task
A study was conducted to evaluate the effect of shoulder muscle activation during hand exertion tasks using a light weight hand tool by working individuals. Electromyography (EMG) of trapezius, supraspinatus, triceps, and pectoralis major was conducted for 45 , 0 and -45 arm angles, for three …
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A direct-drive linear actuated assistive robot for the shoulder
… to provide the required motion for the patient’s shoulder. Therefore, the majority of these robots are stationary and are unable to provide a meaningful task-specific rehabilitation. To increase the effectiveness of therapy, they need to become like assistive robots: wearable, portable, and …
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Reliability of Fatigue Measures in an Overhead Work Task: A Study of Shoulder Muscle Electromyography and Perceived Discomfort
… for each fatigue measure for each of three shoulder muscles (anterior deltoid, middle deltoid, and trapezius). High reliability implies repeatable results, and precise and credible methods. Conversely, measurement error and subject variability can lead to low reliability of measures. The …
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The contribution of reorganised motor pathways to recovery of arm and hand function after stroke
… responses to TMS in four different upper limb muscles was investigated. 3. Ipsilateral responses in normal subjects. The results of the longitudinal study prompted further investigation of the presence of ipsilateral responses in proximal and distal muscles in fifteen normal subjects. 4. The …
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The Influence of the Lower Trapezius Muscle on Shoulder Impingement and Scapula Dyskinesis
… in an outpatient physical therapy setting. Shoulder impingement is a common problem seen in overhead athletes and other individuals and associated changes in muscle activity, biomechanics, and movement patterns have been observed in this condition. Differentially diagnosing impingement and …
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Relative contribution of the internal rotators of the shoulder to speed of the fastball in college baseball pitchers
… the relative contribution of the strength of shoulder internal rotators among various muscle groups to ball speed in the fastball pitch as exhibited by college pitchers. An objective of the study was to explain at least 40% of the contribution of ball speed. The literature appears to be …
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Screening for risk factors associated with non-specific shoulder pain in mail adolescent water polo players
… grappling. There are great demands placed on the shoulder to complete these activities and shoulder pain is the most common musculoskeletal complaint among water polo players. The aetiology of shoulder injury amongst water polo players is not well understood and there is limited research …