Comparison of the Ultrasonic Thickness of Abdominal Wall Muscles in Women with and Without Sway Back Posture

Document Type : Original article

Authors

1 PhD, Associate professor in Physiotherapy, Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

2 Student Research Committee, MSc, Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

3 Ph.D, Professor in Physiotherapy , Department of Physiotherapy, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

4 Professor, Department of Basic Sciences, School of Rehabilitation, Shahid Beheshti University of Medical Sciences, Tehran, Iran

Abstract

Background and Aims: Sway Back Posture (SBP) is one of the most common postural disorders in young people. Considering the importance of the role of the abdominal wall muscles in preserving and maintaining normal posture, it is necessary to investigate the relationship between this postural disorder and the function of the abdominal wall muscles. The present study aimed to compare the ultrasonic thickness of the abdominal wall muscles between women with and without SBP.
Materials and Methods: A total of 111 women, aged 18-30 years were divided into two groups of 37 with SBP and 74 without SBP, participated in the current analytical study. Kendall method was used to evaluate postural status. To measure the degree of lumbar lordosis and anterior pelvic tilt, a flexible ruler and pelvic inclinometer were used, respectively. The rest thicknesses of the abdominal wall muscles, including the rectus abdominis, external oblique, internal oblique, and transversus abdominis, were measured using B Mode ultrasonography in both supine and standing positions.
Results: There were no significant differences in resting thickness of all abdominal muscles between the two groups in the supine position (p≥0. 05). In the standing position, only the external oblique muscle showed a significant difference (p = 0.03). In women with SBP, lumbar lordosis was greater and the pelvic tilt was less than that of women without SBP (p<0.05). In both groups, muscle thickness increased as body mass index increased (p <0.05).
Conclusion: The lack of a change or reduction in the thickness of the abdominal wall muscles in women with SBP can be due to the stability created by the passive elements; consequently, there is no need for muscle activity. Accordingly, evaluation of the contractile thickness of the abdominal wall muscles in people with SBP is recommended.

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References

  1. Kendall FP, McCreary EK, Provance PG, Abeloff DK. Muscles: testing and function: Williams & Wilkins Baltimore, MD; 2005.##
  2. Czaprowski D, Stoliński Ł, Tyrakowski M, Kozinoga M, Kotwicki T. Non-structural misalignments of body posture in the sagittal plane. Scoliosis and spinal disorders. 2018; 13(1):6. ##
  3. Fujitani R, Jiromaru T, Kida N, Nomura T. Effect of standing postural deviations on trunk and hip muscle activity. Journal of physical therapy science. 2017; 29(7):1212-5. ##
  4. Pezolato A, de Vasconcelos EE, Defino HL, Nogueira-Barbosa MH. Fat infiltration in the lumbar multifidus and erector spinae muscles in subjects with sway-back posture. European Spine Journal. 2012; 21(11):2158-64. ##
  5. Mahdavie E, Rezasoltani A, Simorgh L. The comparison of the lumbar multifidus muscles function between gymnastic athletes with sway-back posture and normal posture. International journal of sports physical therapy. 2017; 12(4):607. ##
  6. Reeve A, Dilley A. Effects of posture on the thickness of transversus abdominis in pain-free subjects. Manual Therapy. 2009; 14(6):679-84. ##
  7. Singla D, Veqar Z. Methods of postural assessment used for sports persons. Journal of clinical and diagnostic research: JCDR. 2014; 8(4):LE01. ##
  8. 8-McMeeken J, Beith I, Newham D, Milligan P, Critchley D. The relationship between EMG and change in thickness of transversus abdominis. Clinical Biomechanics. 2004;19(4):337-42. ##
  9. Norasteh A, Ebrahimi E, Salavati M, Rafiei J, Abbasnejad E. Reliability of B-mode ultrasonography for abdominal muscles in asymptomatic and patients with acute low back pain. Journal of Bodywork and Movement Therapies. 2007;11(1):17-20##

10. Whittaker JL, Teyhen DS, Elliot JM, Cook K, Langevin HM, Dhal HH, Stokes M. Rehabilitative ultrasound imaging: understanding the technology and its applications. J Orthop Sports Phys Ther. 2007;37 (8):43449. ##

11. Manshadi FD, Parnianpour M, Sarrafzadeh J, reza Azghani M, Kazemnejad A. Abdominal hollowing and lateral abdominal wall muscles' activity in both healthy men & women: An ultrasonic assessment in supine and standing positions. Journal of bodywork and movement therapies. 2011; 15(1):108-13. ##

12. Youdas JW.Garrett TR, Harmsen S, Suman VJ and Carry JR: Lumbar lordosis and pelvic inclination of asymptomatic adults.Phsy Ther. 1996; 76(10): 1066-81##

13. Ernst MJ, Rast FM, Bauer CM, Marcar VL, Kool J. Determination of thoracic and lumbar spinal processes by their percentage position between C7 and the PSIS level. BMC research notes. 2013; 6(1):58. ##

14. Eftekhar Hosseini A, Khalkhali M.The design and implementation of two instruments for pure hip flexion and pelvic tilt. Informative –Scientific Journal of Shahed University.1994; 4:48-51. ##

15. Ainscough-Potts A-M, Morrissey MC, Critchley D. The response of the transverse abdominis and internal oblique muscles to different postures. Manual Therapy. 2006;11(1):54-60. ##

16. 1O’Sullivan PB, Grahamslaw KM, Kendell M, Lapenskie SC, Möller NE, Richards KV. The effect of different standing and sitting postures on trunk muscle activity in a pain-free population. Spine. 2002;27(11):1238-44. ##

17. Mulhearn S, George K. Abdominal muscle endurance and its association with posture and low back pain: An initial investigation in male and female elite gymnasts. Physiotherapy. 1999;85(4):210-6. ##

18. Levine D, Walker JR, Tillman LJ. The effect of abdominal muscle strengthening on pelvic tilt and lumbar lordosis. Physiotherapy theory and practice. 1997;13(3):217-26. ##

19. Walker ML, Rothstein JM, Finucane SD, Lamb RL. Relationships between lumbar lordosis, pelvic tilt, and abdominal muscle performance. Physical therapy. 1987;67(4):512-6. ##

20. Kim H-J, Chung S, Kim S, Shin H, Lee J, Kim S, et al. Influences of trunk muscles on lumbar lordosis and sacral angle. European Spine Journal. 2006;15(4):409-14. ##

21. Seydi F, Rajabi R, Ebrahimi Takamjani E. Relationship between stregth of lumbopelvic girdle muscles with lumbar lordosis. Olympic.   2008; 16(343): 73-82. ##

22. González-Gálvez N, Gea-García GM, Marcos-Pardo PJ. Effects of exercise programs on kyphosis and lordosis angle: A systematic review and meta-analysis. PloS one. 2019; 14(4):e0216180. ##

The Scientific Journal of Rehabilitation Medicine
Volume 9, Issue 1
April 2020
Pages 11-17

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History

  • Receive Date: 27 May 2019
  • Revise Date: 28 August 2019
  • Accept Date: 24 December 2019
  • First Publish Date: 20 March 2020

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