Results 251 to 260 of about 32,186 (291)

Scapular Muscle Recruitment Patterns: Trapezius Muscle Latency with and without Impingement Symptoms

The American Journal of Sports Medicine, 2003
Background Altered muscle activity in the scapular muscles is commonly believed to be a factor contributing to shoulder impingement syndrome. However, one important measure of the muscular coordination in the scapular muscles, the timing of the temporal recruitment pattern, is undetermined. Purpose To evaluate the timing of trapezius muscle activity in
Ann M, Cools, Erik E, Witvrouw, Geert A, Declercq, Lieven A, Danneels, Dirk C, Cambier   +4 more
openaire   +2 more sources

Eye-lens accommodation load and static trapezius muscle activity

European Journal of Applied Physiology, 2010
The purpose of this experimental study was to investigate if sustained periods of oculomotor load impacts on neck/scapular area muscle activity. The static trapezius muscle activity was assessed from bipolar surface electromyography, normalized to a submaximal contraction.
H O, Richter, T, Bänziger, M, Forsman
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Motor innervation of the trapezius muscle: A histochemical study

Head & Neck, 1996
Controversy exists as to the significance of the cervical plexus as efferent to the trapezius muscle. We have sought to further study this question and to add to anatomic and electrophysiologic evidence of a histochemical perspective.The accessory nerve and the cervical plexus branches from 18 neck dissections were studied by histochemical staining for
P M, Karuman, K C, Soo
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Reliability of bloodflux measurements from the upper trapezius muscle during muscle contractions

European Journal of Applied Physiology, 2007
The aim of this study was to assess the blood flux responses to isometric contractions and recovery. We also wanted to assess the variations in Laser Doppler blood fluxes (LDF) within the upper trapezius muscles, the concordance between the left and right sides and the reliability of blood-flux measurements between contractions and over measurement ...
Cecilie, Røe, Elin, Damsgård, Stein, Knardahl   +2 more
openaire   +2 more sources

Electromyogram mean power frequency in non-fatigued trapezius muscle

European Journal of Applied Physiology and Occupational Physiology, 1990
In this study we have examined the variation of mean power frequency (MPF) in the electromyogram (EMG) from the non-fatigued trapezius muscle, with different external hand loads, in different shoulder joint positions, different torques and different planes of movement. The study was limited to the functional range of movement in the shoulder joint.
T, Oberg, L, Sandsjö, R, Kadefors
openaire   +2 more sources

Evoked electromyography of the eleventh nerve and trapezius muscle

Head & Neck Surgery, 1988
AbstractValues and criteria for abnormality of the eleventh nerve evoked electromyography (EEMG) have been determined. The nerve conduction velocity and duration appear to be relatively consistent from subject to subject. Amplitude of response, while varying significantly from subject to subject, remains relatively constant when the right shoulder is ...
A D, Hillel, R, Dobie, J, Little
openaire   +2 more sources

Experimental muscle pain increases trapezius muscle activity during sustained isometric contractions of arm muscles

Clinical Neurophysiology, 2004
In the present study, the influence of experimental muscle pain on muscle co-ordination and fatigue development during sustained isometric elbow flexion was investigated.Conventional surface electromyography (EMG) was recorded from the biceps brachii, brachioradialis, deltoideus and trapezius muscle during isometric elbow flexion at 40% maximum force ...
Schulte, E., Ciubotariu, Andrei, Arendt-Nielsen, Lars, Disselhorst-Klug, C., Rau, G., Graven-Nielsen, Thomas   +5 more
openaire   +2 more sources

Relationship between sleep stages and nocturnal trapezius muscle activity

Journal of Electromyography and Kinesiology, 2015
Former studies reported a relationship between increased nocturnal low level trapezius muscle activity and neck or shoulder pain but it has not been explored whether trapezius muscle relaxation is related to sleep stages. The goal of the present study was to investigate whether trapezius muscle activity is related to different sleep stages, as measured
Christian Müller, Corinne Nicoletti, Sarah Omlin, Mark Brink, Thomas Läubli   +4 more
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Immunohistochemical properties of motoneurons supplying the porcine trapezius muscle

Polish Journal of Veterinary Sciences
The trapezius muscle (TRAP) belongs to the scapulothoracic group of muscles, which play a crucial role in the integrity and strength of the upper limb, trunk, head, and neck movements and, thus, in maintaining balance. Combined retrograde tracing (using fluorescent tracer Fast Blue, FB) and double-labelling immunohistochemistry were applied to ...
A, Dudek, W, Sienkiewicz, E, Lepiarczyk, J, Kaleczyc   +3 more
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Myofibroblastic Sarcoma of the Trapezius Muscle

Reumatología Clínica (English Edition), 2019
Carlos Antonio, Guillen Astete, Carmen, Larena Grijalva   +1 more
openaire   +2 more sources