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Prediction of Scapular Dyskinesis Through Electromyographic Indices of Scapulothoracic Muscles in Female Overhead Athletes

Document Type : Original Articles

Authors

1 Department of Sports Injuries and Corrective Exercises, Kish International Campus, University of Tehran, Kish Island, Iran.

2 Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport Medicines, University of Tehran, Tehran, Iran.

3 Department of Sport Biomechanics, Faculty of Physical Education and Sport Medicines, University of Guilan, Rasht, Iran

Abstract

Background: Shoulder joint function and the athletic performance of overheadathletes are influenced by scapular dyskinesis (SD) due to its high prevalenceamong these athletes and the motor interaction between the scapula and the arm.The present study investigated the prediction of SD through the electromyographicindices of scapulothoracic muscles in female overhead athletes.Methods: The present descriptive-correlational study was carried out on 60female volleyball, handball, basketball, and badminton athletes. The lateralscapular slide test was used to examine their SD. The required electromyographyand electrogoniometry data was recorded simultaneously to measure the activityand onset time of scapulothoracic muscles, including upper trapezius (UT),lower trapezius (LT), and serratus anterior (SA). The collected data was analyzedusing Spearman correlation and multiple regression tests.Results: Significant correlations were found between all electromyographicvariables and SD (P<0.01). The regression effects of all predictive variables on SDwere significant (P=0.001). In terms of predictive power, UT/SA co-contraction(β=0.765), UT/LT co-contraction (β=0.716), LT onset time (β=0.672), LT activity(β=0.612), and SA onset time (β=0.576) had the highest regression effects onSD, respectively. The analysis of the study model showed that there was a strongcorrelation (r=0.694) between the predictive variables and SD and that theindependent variables predicted 48% of the variance.Conclusion: The presence of imbalance in the scapulothoracic muscles ofoverhead athletes with SD indicates that athletes should be monitored bycoaches, physiotherapists, and physicians for SD screening. It is also necessaryto carry out prospective studies to examine and explore other variables relatedto SD.

Keywords

References
  1. Kibler BW, Sciascia A, Wilkes T. Scapular dyskinesis and its
  2. relation to shoulder injury. Journal of the American Academy
  3. of Orthopaedic Surgeons 2012; 20(6): 364-372. doi: 10.5435/
  4. JAAOS-20-06-364.
  5. Cools AM, et al. Prevention of shoulder injuries in overhead
  6. athletes: a science-based approach. Brazilian journal of physical
  7. therapy 2015; (AHEAD). 00-00. doi: 10.1590/bjpt-rbf.2014.0109.
  8. Ekstrom RA, Soderberg GL, Donatelli RA. Normalization
  9. procedures using maximum voluntary isometric contractions
  10. for the serratus anterior and trapezius muscles during surface
  11. EMG analysis. J Electromyogr Kinesiol 2005; 15(4): 418-428.
  12. doi.org/10.1016/j.jelekin.2004.09.006.
  13. Kibler WB, Ludewig PM, McClure PW, Michener LA, Bak
  14. K, Sciascia AD .Clinical implications of scapular dyskinesis
  15. in shoulder injury: the 2013 consensus statement from the
  16. ‘Scapular Summit’, British journal of sports medicine 2013;
  17. bjsports-2013-092425. doi.org/10.1136/bjsports-2013-092425.
  18. McClure PW, Michener LA, Karduna AR. Shoulder function and
  19. -dimensional scapular kinematics in people with and without
  20. shoulder impingement syndrome. Physical therapy 2006; 86(8):
  21. -1090. doi.org/10.1093/ptj/86.8.1075.
  22. Kibler BW. The role of the scapula in athletic shoulder function.
  23. The American journal of sports medicine 1998; 26(2): 325-337.
  24. doi.org/10.1177/03635465980260022801.
  25. Ludewig PM, Cook TM. Alterations in shoulder kinematics
  26. and associated muscle activity in people with symptoms of
  27. shoulder impingement. Physical therapy 2000; 80(3): 276-291.
  28. doi.org/10.1093/ptj/80.3.276.
  29. Paine R, Voight ML. The role of the scapula. International
  30. journal of sports physical therapy 2013; 8(5): 617. DOI: 10.2519/
  31. jospt.1993.18.1.386.
  32. Park JY, Hwang JT, Oh KS, Kim SJ, Kim NR, Cha MJ. Revisit
  33. to scapular dyskinesis: three-dimensional wing computed
  34. tomography in prone position. J Shoulder Elbow Surg 2014;
  35. (6) :821-8. doi.org/10.1016/j.jse.2013.08.016.
  36. Cricchio M, Frazer C. Scapulothoracic and scapulohumeral
  37. exercises: a narrative review of electromyographic studies.
  38. Journal of Hand Therapy 2011; 24(4): 322-334. doi.org/10.1016/j.
  39. jht.2011.06.001.
  40. Hardwick DH, Beebe JA, McDonnell MK, Lang CE. A comparison
  41. of serratus anterior muscle activation during a wall slide exercise
  42. and other traditional exercises. J Orthop Sports Phys Ther 2006;
  43. (12): 903-10. DOI: 10.2519/jospt.2006.2306.
  44. Huang TS, Huang Hy, Wang TG, Tsai YS, Lin JJ. Comprehensive
  45. classification test of scapular dyskinesis: A reliability study.
  46. Manual therapy 2015; 20(3): 427-432. doi.org/10.1016/j.
  47. math.2014.10.017.
  48. Cools A, Declercq GA, Cambier DC, Mahieu NN, Witvrouw EE.
  49. Trapezius activity and intramuscular balance during isokinetic
  50. exercise in overhead athletes with impingement symptoms.
  51. Scandinavian journal of medicine & science in sports 2007;
  52. (1): 25-33. doi.org/10.1111/j.1600-0838.2006.00570.x.
  53. Moraes GF, Faria CD, Teixeira-Salmela LF. Scapular muscle
  54. recruitment patterns and isokinetic strength ratios of the shoulder
  55. rotator muscles in individuals with and without impingement
  56. syndrome. J Shoulder Elbow Surg 2008; 17(1 Suppl): 48S-53S.
  57. doi.org/10.1016/j.jse.2007.08.007.
  58. Seitz AL, Uhl TL. Reliability and minimal detectable
  59. change in scapulothoracic neuromuscular activity. Journal of
  60. Electromyography and Kinesiology 2012; 22(6): 968-974. doi.
  61. org/10.1016/j.jelekin.2012.05.003.
  62. Oliveira VMAd, Batista LdSP, Piraua ALT, Pitangui ACR, Araújo
  63. RCd. Electromyographic activity and scapular dyskenesia in
  64. athletes with and without shoulder impingement syndrome.
  65. Revista Brasileira de Cineantropometria & Desempenho Humano
  66. ; 15(2): 193-203. doi.org/10.5007/1980-0037.2013v15n2p193.
  67. Helgadottir H, Kristjansoon E, Einarsson E, Karduna A, Jonsson
  68. Jr H. Altered activity of the serratus anterior during unilateral
  69. arm elevation in patients with cervical disorders. Journal of
  70. electromyography and kinesiology 2011; 21(6): 947-953. doi.
  71. org/10.1016/j.jelekin.2011.07.007.
  72. Lucas KR, Rich PA, Polus BI. Muscle activation patterns in
  73. the scapular positioning muscles during loaded scapular
  74. plane elevation: the effects of latent myofascial trigger points.
  75. Clinical Biomechanics 2010; 25(8): 765-770. doi.org/10.1016/j.
  76. clinbiomech.2010.05.006.
  77. Reeser JC, Joy EA, Porucznik CA, Berg RL, Colliver DO EB,
  78. Willick SE. Risk factors for volleyball-related shoulder pain
  79. and dysfunction. Pm&r 2010; 2(1): 27-36. doi.org/10.1016/j.
  80. pmrj.2009.11.010.
  81. Cools AM, Witvouw EE, Declercq GA, Danneels LA, Cambier
  82. DC. Scapular muscle recruitment patterns: trapezius muscle
  83. latency with and without impingement symptoms. The American
  84. journal of sports medicine 2003; 31(4): 542-549. doi.org/10.1177/
  85. Myers JB, Hwang JH, Pasquale MR, Blackburn GT, Lephart SM.
  86. Rotator cuff coactivation ratios in participants with subacromial
  87. impingement syndrome. Journal of science and medicine in sport
  88. ; 12(6): 603-608. doi.org/10.1016/j.jsams.2008.06.003.
  89. Lopes AD, Timmons MK, Grover M, Ciconelli RM, Michener
  90. LA. Visual scapular dyskinesis: kinematics and muscle activity
  91. alterations in patients with subacromial impingement syndrome.
  92. Arch Phys Med Rehabil 2015; 96(2): 298-306. doi.org/10.1016/j.
  93. apmr.2014.09.029.
  94. Chester R, Smith TO, Hooper L, Dixon J. The impact of
  95. subacromial impingement syndrome on muscle activity
  96. patterns of the shoulder complex: a systematic review of
  97. electromyographic studies. BMC Musculoskelet Disord 2010;
  98. :45. doi.org/10.1186/1471-2474-11-45.
  99. Page P ,Frank C, Lardner R. Assessment and treatment of muscle
  100. imbalance: the Janda approach. Human Kinetics; 2010.
  101. Huang TS, Lin JJ, Ou HL, Chen YT. Movement Pattern of
  102. Scapular Dyskinesis in Symptomatic Overhead Athletes. Sci
  103. Rep 2017; 7(1): 6621. PMCID: PMC5529546 PMID: 28747702
Journal of Rehabilitation Sciences & Research
Volume 5, Issue 3 - Serial Number 3
27
September 2018
Pages 74-80
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