scholarly journals Comparison of the Electromyographic Activity in the Lower Trapezius Muscle According to Four Different Types of Exercises in Healthy Adults

2019 ◽  
Vol 31 (2) ◽  
pp. 134-139 ◽  
Author(s):  
Gyeong Ju Seo ◽  
Ji Won Park ◽  
Yonghyun Kwon
Keyword(s):  
Trapezius Muscle ◽  
Healthy Adults ◽  
Electromyographic Activity ◽  
Different Types ◽  
Lower Trapezius

Rehabilitation of Scapular Muscle Balance

2007 ◽  
Vol 35 (10) ◽  
pp. 1744-1751 ◽  
Author(s):  
Ann M. Cools ◽  
Vincent Dewitte ◽  
Frederick Lanszweert ◽  
Dries Notebaert ◽  
Arne Roets ◽  
...  
Keyword(s):  
External Rotation ◽  
Trapezius Muscle ◽  
Electromyographic Activity ◽  
Shoulder Injury ◽  
Serratus Anterior ◽  
Upper Trapezius ◽  
Strengthening Exercises ◽  
Muscle Balance ◽  
Lower Trapezius ◽  
Balance Rehabilitation

Background Strengthening exercises for the scapular muscles are used in the treatment of scapulothoracic dysfunction related to shoulder injury. In view of the intermuscular and intramuscular imbalances often established in these patients, exercises promoting lower trapezius (LT), middle trapezius (MT), and serratus anterior (SA) activation with minimal activity in the upper trapezius (UT) are recommended. Hypothesis Of 12 commonly used trapezius strengthening exercises, a selection can be performed for muscle balance rehabilitation, based on a low UT/LT, UT/MT, or UT/SA muscle ratio. Study Design Controlled laboratory study. Methods Electromyographic activity of the 3 trapezius parts and the SA was measured in 45 healthy subjects performing 12 commonly described scapular exercises, using surface electromyography. Results For each intramuscular trapezius ratio (UT/LT, UT/MT), 3 exercises were selected for restoration of muscle balance. The exercises side-lying external rotation, side-lying forward flexion, prone horizontal abduction with external rotation, and prone extension were found to be the most appropriate for intramuscular trapezius muscle balance rehabilitation. For the UT/SA ratio, none of the exercises met the criteria for optimal intermuscular balance restoration. Conclusion In cases of trapezius muscle imbalance, some exercises are preferable over others because of their low UT/LT and UT/MT ratios. Clinical Relevance In the selection of rehabilitation exercises, the clinician should have a preference for exercises with high activation of the LT and MT and low activity of the UT.

The Effect of Upper Trapezius Taping on Electromyographic Activity in the Upper and Middle Trapezius Region

1997 ◽  
Vol 6 (4) ◽  
pp. 309-318 ◽  
Author(s):  
Gary E. Morin ◽  
David Tiberio ◽  
Gary Austin
Keyword(s):  
Isometric Contraction ◽  
Trapezius Muscle ◽  
Emg Activity ◽  
Electromyographic Activity ◽  
Upper Trapezius ◽  
Shoulder Muscles ◽  
Lower Trapezius ◽  
The Right ◽  
Relationship Of ◽  
Muscular Imbalance

A characteristic of scapulothoracic dysfunction is the tendency for the upper regions of the trapezius to hypertrophy in relation to its middle and lower portions. This creates a muscular imbalance that can alter scapular position and subsequently the length–tension relationship of the shoulder muscles. Tape was applied over the right upper trapezius to inhibit electrical activity in the muscles of 10 uninjured subjects. EMG activity was recorded in two locations of the upper trapezius and one location in the middle to lower trapezius region while each subject maintained an isometric contraction designed to activate both muscles. With the tape applied, there was a statistically significant reduction in EMG activity of the upper trapezius with a corresponding increase in the middle/lower trapezius. The ability of the tape to alter trapezius activity in this fashion may help correct muscular imbalances in the trapezius muscle.

Rehabilitative Ultrasound Imaging of the Lower Trapezius Muscle: Technical Description and Reliability

2007 ◽  
Vol 37 (10) ◽  
pp. 620-626 ◽  
Author(s):  
Cliona O'Sullivan ◽  
Susanna Bentman ◽  
Kathleen Bennett ◽  
Maria Stokes
Keyword(s):  
Ultrasound Imaging ◽  
Trapezius Muscle ◽  
Technical Description ◽  
Lower Trapezius

Hip and Trunk Muscle Activity During the Star Excursion Balance Test in Healthy Adults

2019 ◽  
Vol 28 (7) ◽  
pp. 682-691 ◽  
Author(s):  
Kunal Bhanot ◽  
Navpreet Kaur ◽  
Lori Thein Brody ◽  
Jennifer Bridges ◽  
David C. Berry ◽  
...  
Keyword(s):  
Dynamic Balance ◽  
Gluteus Maximus ◽  
Gluteus Medius ◽  
Healthy Adults ◽  
Rectus Abdominis ◽  
Erector Spinae ◽  
Trunk Muscles ◽  
Electromyographic Activity ◽  
Balance Test ◽  
External Oblique

Context:Dynamic balance is a measure of core stability. Deficits in the dynamic balance have been related to injuries in the athletic populations. The Star Excursion Balance Test (SEBT) is suggested to measure and improve dynamic balance when used as a rehabilitative tool.Objective:To determine the electromyographic activity of the hip and the trunk muscles during the SEBT.Design:Descriptive.Setting:University campus.Participants:Twenty-two healthy adults (11 males and 11 females; 23.3 [3.8] y, 170.3 [7.6] cm, 67.8 [10.3] kg, and 15.1% [5.0%] body fat).Intervention:Surface electromyographic data were collected on 22 healthy adults of the erector spinae, external oblique, and rectus abdominis bilaterally, and gluteus medius and gluteus maximus muscle of the stance leg. A 2-way repeated measures analysis of variance was used to determine the interaction between the percentage maximal voluntary isometric contraction (%MVIC) and the reach directions. The %MVIC for each muscle was compared across the 8 reach directions using the Sidak post hoc test withαat .05.Main Outcome Measures:%MVIC.Results:Significant differences were observed for all the 8 muscles. Highest electromyographic activity was found for the tested muscles in the following reach directions—ipsilateral external oblique (44.5% [38.4%]): anterolateral; contralateral external oblique (52.3% [40.8%]): medial; ipsilateral rectus abdominis (8% [6.6%]): anterior; contralateral rectus abdominis (8% [5.3%]): anteromedial; ipsilateral erector spinae (46.4% [20.2%]): posterolateral; contralateral erector spinae (33.5% [11.3%]): posteromedial; gluteus maximus (27.4% [11.7%]): posterior; and gluteus medius (54.6% [26.1%]): medial direction.Conclusions:Trunk and hip muscle activation was direction dependent during the SEBT. This information can be used during rehabilitation of the hip and the trunk muscles.

Stress, Urge, and Mixed Types of Partial Fecal Incontinence: Pathogenesis, Clinical Presentation, and Treatment

2007 ◽  
Vol 73 (1) ◽  
pp. 6-9
Author(s):  
Ahmed Shafik ◽  
Olfat El Sibai ◽  
Ismail A. Shafik ◽  
Ali A. Shafik
Keyword(s):  
Fecal Incontinence ◽  
Anal Sphincter ◽  
Internal Anal Sphincter ◽  
External Anal Sphincter ◽  
Clinical Presentation ◽  
Individual Treatment ◽  
Electromyographic Activity ◽  
Postanal Repair ◽  
Different Types ◽  
Mixed Types

The authors investigated the hypothesis that partial fecal incontinence (PFI) had variable manifestations that can be categorized as different types of PFI with different pathogeneses and treatment. Anal and rectal pressures as well as external and internal anal sphincter electromyographic activity were recorded in 163 patients with PFI and in 25 healthy volunteers. Patients were treated with biofeedback or surgically. Three types of PFI were encountered: stress fecal incontinence (SFI; 55 patients), urge fecal incontinence (UFI; 72 patients), and mixed fecal incontinence (MFI; 36 patients). Anal pressure decreased in three groups in which MFI had the lowest pressure. A significant reduction in external anal sphincter electromyographic activity occurred in SFI, in internal anal sphincter electromyographic activity in UFI, and of both sphincters in MFI. Bio-feedback cured 36 of 55 patients and postanal repair cured 10 of 19 patients with SFI. Forty-eight of 72 patients with UFI responded to biofeedback and 16 of 24 responded to internal anal sphincter repair. Biofeedback failed in MFI patients. Twenty-four of 27 patients who consented to operative correction of the sphincteric defect were cured. Three types of PFI could be identified: SFI, UFI, and MFI. Each type has its own etiology and symptoms, and requires individual treatment. Biofeedback succeeded in treating the majority of SFI and UFI patients. Surgical correction of the anal sphincter was performed after biofeedback failure.

scholarly journals Role of the kinetic chain in shoulder rehabilitation: does incorporating the trunk and lower limb into shoulder exercise regimes influence shoulder muscle recruitment patterns? Systematic review of electromyography studies

2020 ◽  
Vol 6 (1) ◽  
pp. e000683
Author(s):  
Eleanor Richardson ◽  
Jeremy S Lewis ◽  
Jo Gibson ◽  
Chris Morgan ◽  
Mark Halaki ◽  
...  
Keyword(s):  
Systematic Review ◽  
Lower Limb ◽  
Trapezius Muscle ◽  
Cochrane Central Register ◽  
Muscle Recruitment ◽  
Kinetic Chain ◽  
Serratus Anterior ◽  
Significant Difference ◽  
Recruitment Patterns ◽  
Lower Trapezius

ObjectiveTo investigate the influence of trunk and lower limb motion on electromyography (EMG) muscle activity and recruitment patterns around the shoulder.DesignSystematic review.Data sourcesMEDLINE, CINAHL, PEDro, AMED, PubMed, Cochrane Central Register of Controlled trials, Cochrane Database of Systematic reviews, SportsDiscuss and PROSPERO.Eligibility criteriaStudies investigating both multiregional kinetic chain (KC) shoulder exercises and localised non-kinetic chain (nKC) shoulder exercises in healthy subjects under the same experimental conditions were included in this review.ResultsKC exercises produced greater EMG activation levels in 5 of 11 studies for the lower trapezius. Of the remaining studies, five found no difference between the exercise types and one favoured nKC exercises. KC exercises produced greater EMG activation levels in 5 of 11 studies for the serratus anterior. Of the remaining studies, three reported the opposite and three found no significant difference between the exercise types. nKC exercises produced greater EMG activation in infraspinatus in three of four studies. KC exercises produced the lowest trapezius muscle ratios in all studies. Studies investigating the upper trapezius, middle trapezius, supraspinatus, subscapularis, biceps brachii, latifissimus dorsi, pectoralis major, deltoid, and trapezius and serratus anterior ratios showed inconsistency.ConclusionThis review found evidence that integrating the KC during shoulder rehabilitation may increase axioscapular muscle recruitment, produce lower trapezius muscle ratios and reduce the demands on the rotator cuff. Stepping appears preferable to squatting.PROSPERO registration numberCRD42015032557, 2015.

scholarly journals Alterations in Shoulder Kinematics and Associated Muscle Activity in People With Symptoms of Shoulder Impingement

2000 ◽  
Vol 80 (3) ◽  
pp. 276-291 ◽  
Author(s):  
Paula M Ludewig ◽  
Thomas M Cook
Keyword(s):  
Occupational Exposure ◽  
Muscle Activity ◽  
Load Condition ◽  
Trapezius Muscle ◽  
Electromyographic Activity ◽  
Serratus Anterior Muscle ◽  
Serratus Anterior ◽  
Shoulder Impingement ◽  
Upper Trapezius ◽  
Load Conditions

AbstractBackground and Purpose. Treatment of patients with impingement symptoms commonly includes exercises intended to restore “normal” movement patterns. Evidence that indicates the existence of abnormal patterns in people with shoulder pain is limited. The purpose of this investigation was to analyze glenohumeral and scapulothoracic kinematics and associated scapulothoracic muscle activity in a group of subjects with symptoms of shoulder impingement relative to a group of subjects without symptoms of shoulder impingement matched for occupational exposure to overhead work. Subjects. Fifty-two subjects were recruited from a population of construction workers with routine exposure to overhead work. Methods. Surface electromyographic data were collected from the upper and lower parts of the trapezius muscle and from the serratus anterior muscle. Electromagnetic sensors simultaneously tracked 3-dimensional motion of the trunk, scapula, and humerus during humeral elevation in the scapular plane in 3 hand-held load conditions: (1) no load, (2) 2.3-kg load, and (3) 4.6-kg load. An analysis of variance model was used to test for group and load effects for 3 phases of motion (31°–60°, 61°–90°, and 91°–120°). Results. Relative to the group without impingement, the group with impingement showed decreased scapular upward rotation at the end of the first of the 3 phases of interest, increased anterior tipping at the end of the third phase of interest, and increased scapular medial rotation under the load conditions. At the same time, upper and lower trapezius muscle electromyographic activity increased in the group with impingement as compared with the group without impingement in the final 2 phases, although the upper trapezius muscle changes were apparent only during the 4.6-kg load condition. The serratus anterior muscle demonstrated decreased activity in the group with impingement across all loads and phases. Conclusion and Discussion. Scapular tipping (rotation about a medial to lateral axis) and serratus anterior muscle function are important to consider in the rehabilitation of patients with symptoms of shoulder impingement related to occupational exposure to overhead work.

The Effects of the Position of Ipsilateral Neck Rotation on the Inhibition of the Upper Trapezius Muscle During Lower Trapezius Exercises

2016 ◽  
Vol 23 (1) ◽  
pp. 65-71
Author(s):  
Se-in Park ◽  
◽  
Ji-yeong Chae ◽  
Hyeong-hwi Kim ◽  
Yu-geoung Cho ◽  
...  
Keyword(s):  
Trapezius Muscle ◽  
Upper Trapezius ◽  
Upper Trapezius Muscle ◽  
Neck Rotation ◽  
Lower Trapezius

scholarly journals Muscle Activation During Selected Strength Exercises in Women With Chronic Neck Muscle Pain

2008 ◽  
Vol 88 (6) ◽  
pp. 703-711 ◽  
Author(s):  
Lars L Andersen ◽  
Michael Kjær ◽  
Christoffer H Andersen ◽  
Peter B Hansen ◽  
Mette K Zebis ◽  
...  
Keyword(s):  
Clinical Diagnosis ◽  
Muscle Pain ◽  
Muscle Activation ◽  
Trapezius Muscle ◽  
Emg Activity ◽  
Neck Muscle ◽  
Electromyographic Activity ◽  
Trapezius Myalgia ◽  
Shoulder Muscles ◽  
Strength Exercises

Background and PurposeMuscle-specific strength training has previously been shown to be effective in the rehabilitation of chronic neck muscle pain in women. The aim of this study was to determine the level of activation of the neck and shoulder muscles using surface electromyography (EMG) during selected strengthening exercises in women undergoing rehabilitation for chronic neck muscle pain (defined as a clinical diagnosis of trapezius myalgia).SubjectsThe subjects were 12 female workers (age=30–60 years) with a clinical diagnosis of trapezius myalgia and a mean baseline pain intensity of 5.6 (range=3–8) on a scale of 0 to 9.MethodElectromyographic activity in the trapezius and deltoid muscles was measured during the exercises (lateral raises, upright rows, shrugs, one-arm rows, and reverse flys) and normalized to EMG activity recorded during a maximal voluntary static contraction (MVC).ResultsFor most exercises, the level of muscle activation was relatively high (>60% of MVC), highlighting the effectiveness and specificity of the respective exercises. For the trapezius muscle, the highest level of muscle activation was found during the shrug (102±11% of MVC), lateral raise (97±6% of MVC), and upright row (85±5% of MVC) exercises, but the latter 2 exercises required smaller training loads (3–10 kg) compared with the shrug exercise (20–30 kg).Discussion and ConclusionThe lateral raise and upright row may be suitable alternatives to shrugs during rehabilitation of chronic neck muscle pain. Several of the strength exercises had high activation of neck and shoulder muscles in women with chronic neck pain. These exercises can be used equally in the attempt to achieve a beneficial treatment effect on chronic neck muscle pain.

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