COMPARING ISOMETRIC STRENGTHS OF SHOULDER GIRDLE MUSCLES IN FEMALES WITH AND WITHOUT SCAPULAR DYSKINESIS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

NODEHI MOGHADAM AFSOON; VAHABI PARINAZ; NORASTEH ALI ASGHAR; ABOLHASANI HAMID

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Archives of Rehabilitation (Journal of Rehabilitation) Year:2018 | Volume:19 | Issue:2 Page(s): 92-101

Download Full-Text

Persian Verion

View:

1,010

Download:

Cites:

Information Journal Paper

Title

COMPARING ISOMETRIC STRENGTHS OF SHOULDER GIRDLE MUSCLES IN FEMALES WITH AND WITHOUT SCAPULAR DYSKINESIS

Author(s)

NODEHI MOGHADAM AFSOON | VAHABI PARINAZ | NORASTEH ALI ASGHAR | ABOLHASANI HAMID | Issue Writer Certificate

Keywords

SHOULDERQ2

SCAPULAQ2

MUSCLE STRENGTHQ2

ISOMETRIC CONTRACTIONQ1

Abstract

Objective Alteration of SCAPULAr position and motion is called SCAPULAr dyskinesis. SCAPULAr dyskinesis is a common clinical problem. Strength of SHOULDER girdle muscles is important in SHOULDER motions and stability, so their weakness may lead to SCAPULAr dyskinesis. The aim of this study was to compare the maximum voluntary isometric force of SHOULDER girdle movements in subjects with and without SCAPULAr dyskinesis.Materials & Methods: A case-control study was designed where the participants were selected by nonprobability sampling; 30 subjects with SCAPULAr dyskinesis and an average age of 22.95±2.62 years and 30 subjects without SCAPULAr dyskinesis and an average age of 22.43±2.50 years. The subjects were instructed to stand with their arms resting on each side of the body. The examiner stood behind them at a distance of 1.5 meter and asked them to elevate their arms to the highest level possible. SCAPULAr dyskinesis test was used to visually examine alteration in scapulohumeral rhythm during arm elevation in sagittal and frontal planes. The SHOULDER flexion and abduction were repeated for 5 times. At the same time, the examiner rated the SCAPULAr movement as normal or observable dyskinesis. The maximal voluntary isometric force of SHOULDER internal and external rotation on both sides, such as "scaption with external rotation", "scapular abduction and upward rotation", "scapular adduction and downward rotation", "scapular adduction" and "adduction and depression of SCAPULA" were measured with manual Dynamometer. For determining the maximal SHOULDER isometric rotational force, subjects were positioned prone on tables, arm brought into 90o abduction in frontal plane with 90o elbow flexion and resistance given to distal forearm into SHOULDER external and internal rotations. The maximal isometric force of scaption (supraspinatus strength) was measured in seated position; SHOULDER elevated 70o into SCAPULAr plane abduction (scaption) with external rotation. The maximal isometric force of SCAPULAr abduction and upward rotation was determined in supine position while the arm was elevated to 90o flexion with elbow extension and resistance given against forward pushing. For determining the maximal isometric force of rhomboids and middle trapezius muscles, resistance was given against SCAPULAr adduction and downward rotation, and SCAPULAr adduction, respectively. The maximal isometric force of lower trapezius was determined in prone position while the arm was elevated to 135o SHOULDER elevation with elbow extension. Independent t-test was performed to compare the maximal voluntary isometric force of SHOULDER girdle motions in individuals with and without SCAPULAr dyskinesis.Results: The mean±SD of age, weight and height of the participants without and with SCAPULAr dyskinesis were 22.43±2.50 years/ 22.95±2.62 years, 64.39±13.38 kg/ 65.67 (±12.2) kg and 171.35 (±11.29) cm/ 173.43 (±8.66) cm, respectively. No statistically significant differences were found between the participants of the two groups with regard to the age, weight and height. Our result showed that the isometric force of "scaption with external rotation", "scapular abduction and external rotation", "adduction and depression of SCAPULA", "scapular adduction and downward rotation" and "scapular adduction" were significantly different between the two groups (P<0.05). In comparison to the control group, the individual with SCAPULAr dyskinesis had weaker supraspinatus, serratus anterior, rhomboids and middle and lower trapezius muscles.Conclusion: SCAPULAr dyskinesia or altered kinematics of the SCAPULA (downward rotation, anterior tilt and internal rotation) contributes to impingement syndrome by decreasing the subacromial space. The tissues that occupy the subacromial space are the supraspinatus tendon, subacromial bursa and long head of the biceps brachii tendon. The supraspinatus is the major rotator cuff muscle that is susceptible to tendinopathy in subacromial space. The inflammatory processes or tension overload during SHOULDER activities, which may result from altered kinematics of the SCAPULA and decrease in the subacromial space, may lead to supraspinatus weakness. It has been shown that SCAPULAr stabilizers, such as serratus anterior, rhomboids and middle and lower trapezius muscles are more prone to weakness than the other SHOULDER muscles. So, the weakness in these muscles may relate to SCAPULAr dyskinesis. SCAPULAr muscle exercises are executed in the rehabilitation of patients with subacromial impingement syndrome and SCAPULAr dyskinesis, as the muscular system is one of the major contributors to SCAPULAr positioning, both at rest and during movements. It seems that improving the strength of SHOULDER girdle muscles especially supraspinatus, serratus anterior, rhomboids, and middle and lower trapezius muscles would be necessary in individual with SCAPULAr dyskinesis.

Cites

References

Cite

APA: Copy

NODEHI MOGHADAM, AFSOON, VAHABI, PARINAZ, NORASTEH, ALI ASGHAR, & ABOLHASANI, HAMID. (2018). COMPARING ISOMETRIC STRENGTHS OF SHOULDER GIRDLE MUSCLES IN FEMALES WITH AND WITHOUT SCAPULAR DYSKINESIS. ARCHIVES OF REHABILITATION (JOURNAL OF REHABILITATION), 19(2 ), 92-101. SID. https://sid.ir/paper/43490/en

Vancouver: Copy

NODEHI MOGHADAM AFSOON, VAHABI PARINAZ, NORASTEH ALI ASGHAR, ABOLHASANI HAMID. COMPARING ISOMETRIC STRENGTHS OF SHOULDER GIRDLE MUSCLES IN FEMALES WITH AND WITHOUT SCAPULAR DYSKINESIS. ARCHIVES OF REHABILITATION (JOURNAL OF REHABILITATION)[Internet]. 2018;19(2 ):92-101. Available from: https://sid.ir/paper/43490/en

IEEE: Copy

AFSOON NODEHI MOGHADAM, PARINAZ VAHABI, ALI ASGHAR NORASTEH, and HAMID ABOLHASANI, “COMPARING ISOMETRIC STRENGTHS OF SHOULDER GIRDLE MUSCLES IN FEMALES WITH AND WITHOUT SCAPULAR DYSKINESIS,” ARCHIVES OF REHABILITATION (JOURNAL OF REHABILITATION), vol. 19, no. 2 , pp. 92–101, 2018, [Online]. Available: https://sid.ir/paper/43490/en

Related Journal Papers