Journal of Korean Physical Therapy Science (대한물리치료과학회지)

Korean Physical Therapy Science (대한물리치료과학회)
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The Correlation between Rounded Shoulder Angle, Scapular Downward Rotation Ratio and Lower Trapezius Muscle Strength in Subjects with Scapular Downward Rotation Syndrome

어깨뼈 아래쪽돌림 증후군이 있는 대상자에게서 둥근어깨각, 어깨뼈 아래 돌림비율과 아래등세모근 근력과의 상관관계

  • 고은경 (마산대학교 물리치료학과)
  • Received : 2023.01.05
  • Accepted : 2023.03.03
  • Published : 2023.09.30
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Abstract

Background: This study was to investigate the relationship between scapular downward rotation ratio (SDRR), lower trapezius (LT) muscle, and rounded shoulder angle (RSA) on each side in subjects with scapular downward rotation syndrome (SDRS). Design: Cross-sectional Study Methods: Fifteen subjects have participated in this study. The RSA and SDRR were assessed using a tape measure in standing posture. The RSA was computed by the angle made by two lines: one was the distance between the root of the scapula and the acromion, and the other was the distance between the acromion and the horizontal line in the root of the scapula. The SDRR was computed by two horizontal lines: one was the distance between the mid-line and root of the scapula, and the other was the distance between the mid-line and inferior angle of the scapula. LT muscle strength was performed in a prone position by the hand-held dynamometer. Results: There was a positive correlation between SDRR and LT strength in the less affected sides (r=.59; p=.02), however, there was no correlation between RSA and LT strength in the more affected sides (p>.05).

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References

  1. Azevedo DC, de Pires TL, de Andrade FS, et al. Influence of scapular position on the pressure pain threshold of the upper trapezius muscle region. Eur J Pain 2008;12(2):226-232. https://doi.org/10.1016/j.ejpain.2007.05.004
  2. Caldwell C, Sahrmann S, Van Dillen L. Use of a movement system impairment diagnosis for physical therapy in the management of a patient with shoulder pain. J Orthop Phys Ther 2007;37(9):551-563. https://doi.org/10.2519/jospt.2007.2283
  3. Choi WJ, Cynn HS, Lee CH, et al. Shrug exercises combined with shoulder abduction improve scapular upward rotator activity and scapular alignment in subjects with scapular downward rotation impairment. J Electromyogr Kinesiol 2015;25(2):363-370. https://doi.org/10.1016/j.jelekin.2014.12.001
  4. Choi WJ, Lee JH, Jeong HJ, et al. Reliability of scapular downward rotation measurement in subjects with scapular downward rotation syndrome. Phys Ther Korea 2014;21(3):73-9. https://doi.org/10.12674/ptk.2014.21.3.073
  5. De Mey K, Barbara C, Van De Velde A, et al. Trapezius muscle timing during selected shoulder rehabilitation exercises. J Orthop Sports Phys Ther 2009;39(10):743-752. https://doi.org/10.2519/jospt.2009.3089
  6. Ha SM, Kwon OY, Yi CH, et al. Effects of scapular upward rotation exercises on alignment of scapula and clavicle and strength of scapular upward rotators in subjects with scapular downward rotation syndrome. J Electromyogr Kinesiol 2016;26:130-6.
  7. Hwang UJ, Kwon OY, Yi CH, et al. Predictors of upper trapezius pain with myofascial trigger points in food service workers: The STROBE study. Medicine 2017;96(26):e7275.
  8. Kang MH, Choi JY, Oh JS. Effects of crossed brassiere straps on pain, range of motion, and electromyographic activity of scapular upward rotators in women with scapular downward rotation syndrome. PM R 2015;7(12): 1261-1268. https://doi.org/10.1016/j.pmrj.2015.05.016
  9. Kendall FP, McCreary EK, Provance PG, et al. Muscles: Testing and function, with posture and pain. 5th ed. Baltimore: Lippincott Williams & Wilkins;2005.p.330-9.
  10. Kim SH, Park KN. The Strength of the Lower Trapezius in Violinists With Unilateral Neck Pain. Phys Ther Korea 2014;21(4):9-14. https://doi.org/10.12674/ptk.2014.21.4.009
  11. Kim SY, Yu IY, Oh JS, et al. Effects of Intended Scapular Posterior Tilt Motion on Trapezius Muscle Electromyography Activity. Int. J. Environ. Res Public Health 2021;18(17):9147-58. https://doi.org/10.3390/ijerph18179147
  12. Lee JH, Cynn HS, Choi WJ, et al. Reliability of levator scapulae index in subjects with and without scapular downward rotation syndrome. Phys Ther Sport 2016;19:1-6. https://doi.org/10.1016/j.ptsp.2015.07.002
  13. Lee KT, Chuang CC, Lai CH, et al. Study of the trapezius muscle region pressure pain threshold and latency time in young people with and without depressed scapula. Manual Therapy 2015;20(1):124-9. https://doi.org/10.1016/j.math.2014.07.014
  14. Ludewig PM, Reynolds JF. The association of scapular kinematics and glenohumeral joint pathologies. J Orthop Sports Phys Ther 2009;39(2),90-104. https://doi.org/10.2519/jospt.2009.2808
  15. Mottram SL. Dynamic stability of the scapula. SL. Man Ther 1997;2(3):123-131. https://doi.org/10.1054/math.1997.0292
  16. Neumann DA, Rowan EE. Kinesiology of the Musculoskeletal System: Foundations for Physical Rehabilitation. St. Louis: Mosby;2002.p.121-3.
  17. Page P, Frank CC, Lardner R. Assessment and Treatment of Muscle Imbalance: The Janda Approach. Champaign: Human Kinetics;2009.p.175-210.
  18. Sahrmann S. Movement system impairment syndromes of the extremities, cervical and thoracic spines. St Louis: Mosby;2010.p.68-74.
  19. Sahrmann S. Diagnosis and Treatment on Movement Impairment Syndrome. St Louis: Mosby;2002.p.193-247.
  20. Szeto GP, Straker L, Raine S. A field comparison of neck and shoulder postures in symptomatic and asymptomatic office workers. Appl Ergon 2002;33(1),75-84. https://doi.org/10.1016/S0003-6870(01)00043-6
  21. Warner JJ, Micheli LJ, Arslanian et al. Scapulothoracic motion in normal shoulders and shoulders with glenohumeral instability and impingement syndrome. Clin Orthop Relat Res 1992;285,191-199. https://doi.org/10.1097/00003086-199212000-00024