Electromyography Activity of Selected Muscles during Running in Boys (Aged Range between 10-12 Years) with Forward Head Posture during Running

Document Type : Original Article

Authors

1 Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran

2 Department of Sport Injuries, Faculty of Physical Education and Sport Sciences, University of Allame Tabatabaii, Tehran, Iran.

3 Department of Physical Education and Sport Sciences, Faculty of Educational Science and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.

Abstract

Purpose: 
Forward head posture is one of the most prevalent poor postures that cause neck injuries. The objective of this study was to investigate the electrical activity of selected muscles during running in an able-bodied control group and in boys with forward head posture.
Methods:
Twenty eight boys were volunteered to participate in this study. The subjects divided into a healthy control group (n=16) and a group of boys with forward head posture (n=12). A portable EMG system was used to record the electrical activity of the bilateral seratus anterior, erector spinae (cervical part), sternocleidomastoid, and upper and lower trapezius muscles during barefoot running. For EMG analysis, the average root mean square (RMS) values of the three trials were calculated and then normalized based on the peak RMS obtained by the maximum isometric voluntary contraction. Independent sample t-test was used for between group comparisons. The significance level was set at pResults:
The findings indicated that running speed in boys with forward head (2.70±0.09 m/s) was smaller than that in control group (2.91±0.14 m/s) (p<0.001). The activity level of all selected muscles were not statistically different between both groups (p>0.05). However, asymmetry index of electrical activity of sternocleidomastoid muscle in control group was greater than that in forward head posture group by 8.3±1.5% (p=0.045).
Conclusion:
In boys with forward head posture the running speed was reduced and the muscle activity was similar with respect to those in control group. This altered running speed and muscle activity is suggestive of a lower mechanical efficiency of running in boys with forward head posture that is consistent with literature.

Keywords

Main Subjects

References

  1. Kendall Peterson F, McCreary Kendall E, Provance Geise P, et al. Muscles: Testing and Function, with posture and pain. Lippincott Williams & Wilkins, Baltimore, MD; 2005; 74(11): 124-27
  2. Yip CHT, Chiu TTW, Poon ATK. The relationship between head posture and severity and disability of patients with neck pain. Manual therapy 2008; 13 (2): 148-54.
  3. Raine S, Twomey LT. Head and shoulder posture variations in 160 asymptomatic women and men. Archives of physical medicine and rehabilitation 1997; 78(11): 1215- 23.
  4. Kamper SJ, Henschke N, Hestbaek L, Kate M, et al. Musculoskeletal pain in children and adolescents. Brazilian journal of physical therapy 2016; 20(3): 84-275.
  5. Falla D, O’Leary S, Fagan A, Jull G. Recruitment of the deep cervical flexor muscles during a postural-correction exercise performed in sitting. Manual therapy 2007; 12(2): 139-43.
  6. Ishida H, Suehiro T, Kurozumi C, Ono K, et al. Correlation between neck slope angle and deep cervical flexor muscle thickness in healthy participants. Journal of bodywork and movement therapies 2015; 19(4): 717-21.
  7. Ohmure H, Miyawaki S, Nagata J, Ikeda K, et al. Influence of forward head posture on condylar position. Journal of oral rehabilitation 2008; 35(11): 795-800.
  8. Lynch SS, Thigpen CA, Mihalik JP, Prentice WE, et al. The effects of an exercise intervention on forward head and rounded shoulder postures in elite swimmers. British journal of sports medicine 2010; 44(5): 376-81.
  9. Silva AG, Punt TD, Sharples P, Vilas-Boas JP, et al. Head posture and neck pain of chronic nontraumatic origin: a comparison between patients and pain-free persons. Archives of physical medicine and rehabilitation 2009; 90(4): 669-74.
  10. Silva AG, Sharples P, Johnson MI. Studies comparing surrogate measures for head posture in individuals with and without neck pain. Physical Therapy Reviews 2010; 15(1): 12-22.
  11. Cromwell RL, Newton RA, Carlton LG. Horizontal plane head stabilization during locomotor tasks. Journal of motor behavior 2001; 33(1): 49-58.
  12. Grossman GE, Leigh RJ, Abel L, et al. Frequency and velocity of rotational head perturbations during locomotion. Experimental brain research 1988; 70(3): 470-6.
  13. Hirasaki E, Moore ST, Raphan T, Lanska DJ, et al. Effects of walking velocity on vertical head and body movements during locomotion. Experimental brain research 1999; 127(2): 117-30.
  14. Latt MD, Menz HB, Fung VS, Lord SR. Walking speed, cadence and step length are selected to optimize the stability of head and pelvis accelerations. Experimental Brain Research 2008; 184(2): 201-9.
  15. Holt KG, Jeng SF, Ratcliffe R, Hamill J. Energetic cost and stability during human walking at the preferred stride frequency. Journal of motor behavior 1995; 27(2): 164-78.
  16. Cromwell R, Schurter J, Shelton S, Vora S. Head stabilization strategies in the sagittal plane during locomotor tasks. Physiotherapy Research International 2004; 9(1): 33-42.
  17. Kavanagh J, Barrett R, Morrison S. The role of the neck and trunk in facilitating head stability during walking. Experimental brain research 2006; 172(4): 445.
  18. Edwards WB, Derrick TR, Hamill J. Musculoskeletal attenuation of impact shock in response to knee angle manipulation. Journal of applied biomechanics 2012; 28(5): 502-10.
  19. Hamill J, Derrick T, Holt K. Shock attenuation and stride frequency during running. Human movement science 1995; 14(1): 45-60.
  20. Simon SR, Paul IL, Mansour J, Murno M, et al. Peak dynamic force in human gait. Journal of biomechanics 1981;14 (12): 21-28.
  21. Gruber AH, Boyer KA, Derrick TR, Hamill J. Impact shock frequency components and attenuation in rearfoot and forefoot running. Journal of sport and health science 2014; 3(2): 113-21.
  22. Edmondston SJ, Sharp M, Symes A, Alhabib N, et al. Changes in mechanical load and extensor muscle activity in the cervico-thoracic spine induced by sitting posture modification Ergonomics 2011; 54(2): 179-86.
  23. Kogler A, Lindfors J, Ödkvist L, Ledin T. Postural stability using different neck positions in normal subjects and patients with neck trauma. Acta oto-laryngologica 2000; 120(2): 151-5.
  24. Vuillerme N, Rougier P. Effects of head extension on undisturbed upright stance control in humans. Gait & posture 2005; 21(3): 318-25.
  25. Kang J-H, Park R-Y, Lee S-J, Kim JY, et al. The effect of the forward head posture on postural balance in long time computer based worker. Annals of rehabilitation medicine 2012; 36 (1): 98-104.
  26. Faul F, Erdfelder E, Lang A-G, Buchner A. G* Power 3: A flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behavior research methods 2007; 39(2): 175- 91.
  27. Salahzadeh Z, Maroufi N, Ahmadi A, Behtash H, et al. Assessment of forward head posture in females: observational and photogrammetry methods. Journal of back and musculoskeletal rehabilitation 2014; 27 (2): 131-9.
  28. Winter DA. Biomechanics and motor control of human movement: John Wiley & Sons; 2009; 124-136.
  29. Falla D, Jull G, Hodges P. Feedforward activity of the cervical flexor muscles during voluntary arm movements is delayed in chronic neck pain. Experimental brain research 2004; 157(1): 43-8.
  30. Hermens HJ, Hutten MM. Muscle activation in chronic pain: its treatment using a new approach of myofeedback. International Journal of Industrial Ergonomics 2002; 30(4): 325-36.
  31. Murley GS, Menz HB, Landorf KB. Foot posture influences the electromyographic activity of selected lower limb muscles during gait. Journal of foot and ankle research 2009; 35(1): 2-7.
  32. Hamill J, Knutzen KM. Biomechanical basis of human movement: Lippincott Williams & Wilkins; 2006; 32(1): 754- 61.
  33. Harman K, Hubley-Kozey CL, Butler H. Effectiveness of an exercise program to improve forward head posture in normal adults: a randomized, controlled 10-week trial. Journal of Manual & Manipulative Therapy 2005; 13(3): 163-76.
  34. Yoo W-G, An D-H. The relationship between the active cervical range of motion and changes in head and neck posture after continuous VDT work. Industrial Health 2009; 47 (2): 183-8.
  35. Quek J, Pua Y-H, Clark RA, Bryant AL, et al. Effects of thoracic kyphosis and forward head posture on cervical range of motion in older adults. Manual therapy 2013; 18(1): 65-71.
  36. Kumar S, Narayan Y, Prasad N, Shuaib A, et al. Cervical electromyogram profile differences between patients of neck pain and control Spine.2007; 32(8): 246-53.
  37. Roddey TS, Olson SL, Grant SE. The effect of pectoralis muscle stretching on the resting position of the scapula in persons with varying degrees of forward head/rounded shoulder posture. Journal of Manual & Manipulative Therapy 2002; 10(3): 124-8.
  38. Jull G, Falla D, Vicenzino B, Hodges PW. The effect of therapeutic exercise on activation of the deep cervical flexor muscles in people with chronic neck pain. Manual therapy 2009; 14(6): 696-701.

Journal of Paramedical Sciences & Rehabilitation
Volume 8, Issue 2
July 2019
Pages 7-16

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