scholarly journals The Comparison for Serratus Anterior Muscle Activity during Protraction in Open Chain and Closed Chain Exercises in Healthy Adults

2018 ◽  
Vol 2 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Tae-ho Kim ◽  
Han-kyu Park
Keyword(s):  
Muscle Activity ◽  
Healthy Adults ◽  
Serratus Anterior Muscle ◽  
Serratus Anterior ◽  
Open Chain ◽  
Closed Chain

scholarly journals Scapular kinematic and shoulder muscle activity alterations after serratus anterior muscle fatigue

2018 ◽  
Vol 27 (7) ◽  
pp. 1205-1213 ◽  
Author(s):  
Jun Umehara ◽  
Ken Kusano ◽  
Masatoshi Nakamura ◽  
Katsuyuki Morishita ◽  
Satoru Nishishita ◽  
...  
Keyword(s):  
Muscle Fatigue ◽  
Muscle Activity ◽  
Serratus Anterior Muscle ◽  
Serratus Anterior ◽  
Shoulder Muscle

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 Effect of a Combination of Scapular Protraction With Resistance and Forward Flexion of the Shoulder on Serratus Anterior Muscle Activity

2016 ◽  
Vol 23 (4) ◽  
pp. 55-62
Author(s):  
Sung-hoon Jung ◽  
◽  
In-cheol Jeon ◽  
Ui-jae Hwang ◽  
Jun-hee Kim ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Serratus Anterior Muscle ◽  
Serratus Anterior ◽  
Forward Flexion

scholarly journals Shoulder electromyography activity during push-up variations: a scoping review

2021 ◽  
pp. 175857322110193
Author(s):  
Katie L Kowalski ◽  
Denise M Connelly ◽  
Jennifer M Jakobi ◽  
Jackie Sadi
Keyword(s):  
Scoping Review ◽  
Muscle Activity ◽  
Muscle Activation ◽  
Shoulder Girdle ◽  
Serratus Anterior ◽  
Rehabilitation Outcomes ◽  
Emg Amplitude ◽  
Unstable Surface ◽  
Closed Chain ◽  
Hands On

Background Push-ups (PU) are a common closed chain exercise used to enhance shoulder girdle stability, with variations that alter the difficulty or target specific muscles. To appropriately select and prescribe PU exercises, an understanding of muscle activity during variations of the PU is needed. The purpose of this scoping review was to identify common PU variations and describe their muscle activation levels. Methods Databases searched included PubMed, CINAHL, Scopus, and SPORTDiscus for articles published between January 2000 and November 2019. Results Three hundred three articles were screened for eligibility with 30 articles included in the analysis. Six PU types and five muscles met the criteria for analysis. Weighted mean electromyography (EMG) amplitude was calculated for each muscle across PU types and for each PU type as a measure of global muscle activity. Triceps and pectoralis major had the highest EMG amplitude during unstable, suspension, incline with hands on a ball and the standard PU. Serratus anterior had the highest EMG amplitude during PU plus and incline PU. The greatest global EMG amplitude occurred during unstable surface PU. Discussion These results provide clinicians with a framework for prescribing PU to target specific muscles and scale exercise difficulty to facilitate rehabilitation outcomes.

Serratus Anterior Muscle Activity During Selected Rehabilitation Exercises

1999 ◽  
Vol 27 (6) ◽  
pp. 784-791 ◽  
Author(s):  
Michael J. Decker ◽  
Robert A. Hintermeister ◽  
Kenneth J. Faber ◽  
Richard J. Hawkins
Keyword(s):  
Muscle Activity ◽  
Serratus Anterior Muscle ◽  
Serratus Anterior ◽  
Rehabilitation Exercises

Muscle Activity Patterns do not Differ Between Push-Up and Bench Press Exercises

2018 ◽  
Vol 34 (6) ◽  
pp. 442-447 ◽  
Author(s):  
Jinger S. Gottschall ◽  
Bryce Hastings ◽  
Zachary Becker
Keyword(s):  
Muscle Activity ◽  
Bench Press ◽  
Activity Patterns ◽  
Upper Body ◽  
Open Chain ◽  
Closed Chain ◽  
Percent Contribution ◽  
Muscle Groups ◽  
Open Versus ◽  
Push Up

Popular topics for upper-body resistance training involve the differences between hand positions, open versus closed chain exercises, and movement variations for the novice to the advanced. It was hypothesized that there will be no difference between closed (push-up) versus open (bench press) chain exercises for the primary muscle group activity nor would there be a difference between push-ups on the toes versus knees with respect to the percent contribution of each muscle. Surface muscle activity was measured for 8 upper-body and core muscles during a sequence of push-up and bench press variations with a normalized weight for 12 active men. Each participant completed push-ups and bench press exercises at each of 3 hand positions. The results demonstrated that there were few differences between closed versus open chain exercises for the primary muscle groups with the exception of core activation. In addition, in general, narrow hand positions yielded greater activation, and there were no significant differences between push-ups on the toes versus knees with respect to the percent contribution for the primary muscle groups. In conclusion, closed chain exercises may be preferred for functional training, and knee push-ups may be ideal as a novice push-up variation.

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