Head and shoulder posture affect scapular mechanics and muscle activity in overhead tasks

Thigpen, Charles A.; Padua, Darin A.; Michener, Lori A.; Guskiewicz, Kevin M.; Giuliani, Carol; Keener, Jay D.; Stergiou, Nicholas

doi:10.1016/j.jelekin.2009.12.003

Cited by 235 publications

(213 citation statements)

References 30 publications

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“…Another study found a significant correlation between FHP and thoracic kyphosis. 43 The aforementioned studies hence provide evidence of an association between FHP and rounded shoulders, 5,52 between FHP and thoracic kyphosis, 27,46 and between rounded shoulders and thoracic kyphosis. 19,25,26 To the best of our knowledge, only 4 papers were found that best supported the objective of this review.…”

Section: Discussionmentioning

confidence: 86%

“…If the cervical spine is held in protracted position for prolonged duration, it can lead to alterations in head posture ultimately leading to poor posture known as forward head posture (FHP), which is thought to be a deviation from neutral or normal posture. 4,5 Normal posture is defined as when the line of gravity (LOG) passes through the external auditory meatus, the bodies of the cervical spine, and the acromion and anterior to the thoracic spine 6 (Fig 1). Normally, the external moment produced by gravity and ground reaction forces at a joint is offset by the internal moment produced by various muscles and other soft tissue structures around that joint.…”

Section: Introductionmentioning

confidence: 99%

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Association Between Forward Head, Rounded Shoulders, and Increased Thoracic Kyphosis: A Review of the Literature

Singla

Veqar

2017

Journal of Chiropractic Medicine

160

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Objective: The purpose of this review was to explore the association between forward head posture, rounded shoulders, and increased thoracic kyphosis. Methods: The PubMed, ERIC, and Cochrane databases were searched using the key words posture, head, shoulder, forward scapular posture, and thoracic kyphosis through December 2016. Results: Our initial search yielded 6840 research studies, 6769 of which were excluded because they either were duplicates or did not satisfy the inclusion criteria. After the abstracts of the remaining studies were read, 15 were assessed for eligibility, and only 4 papers were included in the present review. Cervical lordosis values were found to be significantly associated with thoracic kyphosis values. Also, there were significant correlations between rounded shoulders and increased thoracic kyphosis. Conclusion: Forward head posture, rounded shoulders, and increased thoracic kyphosis can exist alone or in any combination. (J Chiropr Med 2017;16:220-229)

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Section: Discussionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Association Between Forward Head, Rounded Shoulders, and Increased Thoracic Kyphosis: A Review of the Literature

Singla

Veqar

2017

Journal of Chiropractic Medicine

160

View full text Add to dashboard Cite

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“…The camera was installed in line with the subject's shoulder height and the distance between the camera and the measurer was 2 m. The FHA between the vertical line passing through the spinous process of the seventh cervical vertebrae and the line passing through the spinous process of the seventh cervical vertebrae and the tragus was measured using NIH Image J software from the lateral body image captured by the digital camera. A previous study asserts that a higher angle indicates a more severe forward head position 9) . EJA was determined by measuring the angle between the line connecting the acromion and the humerus lateral epicondyle and the line connecting the middle area of radial styloid process and the ulnar head and humerus lateral epicondyle (Fig.…”

Section: Methodsmentioning

confidence: 94%

“…Most studies of upper extremity alignment have investigated round shoulder posture (RSP) 7,8) forward head posture (FHP) 9) . No research has yet been conducted on the effects of muscular imbalance arising from by HHAGP on forward head angle, elbow joint angle, and GHJ range of motion (ROM).…”

Section: Introductionmentioning

confidence: 99%

An Analysis of the Correlation between Humeral Head Anterior Glide Posture and Elbow Joint Angle, Forward Head Posture and Glenohumeral Joint Range of Motion

2013

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Abstract.[Purpose] The purpose of this study was to examine the correlation between the humeral head anterior glide posture (HHAGP) and elbow joint angle (EJA), forward head posture (FHP), and glenohumeral joint (GHJ) range of motion (ROM).[Subjects] The subjects were 47 college students (10 male, 37 female) in whom more than one third of the humeral head was anteriorly translated against the acromion.[Methods] Humeral head distance (HHD) was measured with vernier calipers and EJA and FHP were measured using NIH Image J software for lateral body imaging obtained with a digital camera. GHJ ROM was measured with a goniometer.[Results] Increases in HHD were accompanied by decreases in internal rotation (IR) and abduction (AB), while increases in forward head angle (FHA) accompanied decreases in EJA. Increases in EJA occurred together with increases in external rotation (ER). IR and ER increased with increases in AB.[Conclusion] HHD influences EJA, IR, and AB; therefore, HHD should be considered in therapeutic approaches for these factors.

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“…As in any competitive sport, excellence is achieved through a constant training routine, which is no different in the practice of Lasso Throwing. In this sense, due to the performance of the characteristic gesture of the activity, a large number of repetitions are imposed on the shoulder region, which can often injure the rotator cuff muscles due to repetitive use and with load on the upper limb at an angle above the 90° of abduction and flexion of the glenohumeral joint (4)(5)(6) . Movement of the upper limb above the shoulder girdle is a result of the harmony between the sternoclavicular, acromioclavicular, scapulothoracic and glenohumeral joints, and a misplaced position of any of the bones composing these joints may impair the efficiency of upper limb movement (7) .…”

Section: Introductionmentioning

confidence: 99%

Association between the increased thoracic curvature and the prevalence of pain in the shoulder complex on roping practitioners

Santos¹,

Dhein²,

Torre³

2020

mtprehabjournal

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Background:The roping practice is a sporting the practitioner aims to throw a type of rope with a loop over the head or around the horns of the steer during the horse riding. The movement of looping is performed by repeated rotations of the shoulder above the shoulder girdle line, and this action, associated with changes in the thoracic spine, can overwhelm the structures of the shoulder complex and the muscles. Objective: Analyze the association between changes in increased thoracic curvature and the prevalence of pain in the shoulder complex in roping practitioners. Methods: The sample was intentionally with 20 male roping practitioners who were submitted to assessment of shoulder pain using the shoulder pain and disability index (spadi), three shouder's orthopedic test, the jobe's test, the yergason's test, the neer's test, and also the measurement of the thoracic curvature angle through the flexicurve method. The statistical data were processed using the SPSS version 20.0, and the Chi-Squared test was applied to evaluate the association between the variables. The level of significance adopted was 5%. Results: 70% of the sample presented pain in the shoulder joint complex and 45% of the practitioners presented hyperkyphosis. There is a moderate association between the variables (p = 0.008 / contingency coefficient = 0.510). Conclusion: The results showed a moderate association between the prevalence of pain in the shoulder complex and the increase of the thoracic curvature angle.

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Head and shoulder posture affect scapular mechanics and muscle activity in overhead tasks

Cited by 235 publications

References 30 publications

Association Between Forward Head, Rounded Shoulders, and Increased Thoracic Kyphosis: A Review of the Literature

Association Between Forward Head, Rounded Shoulders, and Increased Thoracic Kyphosis: A Review of the Literature

An Analysis of the Correlation between Humeral Head Anterior Glide Posture and Elbow Joint Angle, Forward Head Posture and Glenohumeral Joint Range of Motion

Association between the increased thoracic curvature and the prevalence of pain in the shoulder complex on roping practitioners

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