The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Comparison of Cervical Flexor Muscles Thickness During Cranial-Cervical Flexor Exercise According to Pressure Levels and Eye Directions in Healthy Subjects

  • Received : 2015.01.13
  • Accepted : 2015.02.09
  • Published : 2015.02.25
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Abstract

Purpose: The purpose of this study is to investigate differences of cervical flexor muscle thickness (i.e., sternocleidomastoid muscle and deep cervical flexor muscles) depending on levels of pressure bio-feedback unit and eye directions during cranial-cervical flexor exercise in healthy subjects. Methods: A total of 30 subjects (12 males and 18 females) who had no medical history related to musculoskeletal and neurological disorders were enrolled in this study. They were instructed to perform cranial-cervical flexion exercise with adjustment of five different pressures (i.e., 22 mmHg, 24 mmHg, 26 mmHg, 28 mmHg, and 30 mmHg) using a pressure biofeedback unit, according to three different eye directions (i.e., $0^{\circ}$, $20^{\circ}C$, and $40^{\circ}C$). Muscle thickness of sternocleidomastoid muscle and deep cervical flexor muscles was measured according to pressure levels and eye directions using ultrasonography. Results: In results of muscle thickness in sternocleidomastoid muscle and deep cervical flexor muscles, the thickness of those muscles was gradually increased compared to the baseline pressure level (22 mmHg), as levels in the pressure biofeedback unit during cranial-cervical flexion exercise were increasing. In addition, at the same pressure levels, muscle thickness was increased depending on ascending eye direction. Conclusion: Our findings showed that muscle thickness of sternocleidomastoid muscle and deep cervical flexor muscles was generally increased during cranial-cervical flexion exercise, according to increase of eye directions and pressure levels. Therefore, we suggested that lower eye direction could induce more effective muscle activity than the upper eye direction in the same environment during cranial-cervical flexion exercise.

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References

  1. Conley MS, Meyer RA, Bloomberg JJ, et al. Noninvasive analysis of human neck muscle function. Spine (Phila Pa 1976). 1995;20(23):2505-12. https://doi.org/10.1097/00007632-199512000-00009
  2. Mayoux-Benhamou MA, Revel M, Vallee C, et al. Longus colli has a postural function on cervical curvature. Surg Radiol Anat. 1994;16(4):367-71. https://doi.org/10.1007/BF01627655
  3. Vasavada AN, Li S, Delp SL. Influence of muscle morphometry and moment arms on the moment-generating capacity of human neck muscles. Spine (Phila Pa 1976). 1998;23(4):412-22. https://doi.org/10.1097/00007632-199802150-00002
  4. Falla D, Bilenkij G, Jull G. Patients with chronic neck pain demonstrate altered patterns of muscle activation during performance of a functional upper limb task. Spine (Phila Pa 1976). 2004;29(13):1436-40. https://doi.org/10.1097/01.BRS.0000128759.02487.BF
  5. Rezasoltani A, Ylinen J, Vihko V. Isometric cervical extension force and dimensions of semispinalis capitis muscle. J Rehabil Res Dev. 2002; 39(3):423-8.
  6. Lee JA, Kim SY. Reliability of ultrasonography for the longus colli in asymptomatic subjects. J Kor Phys Ther. 2011;23(4):59-66.
  7. Lee HJ, Kim MK, Ha HK, et al. Comparison of muscle architecture of lower extremity using rehabilitative ultrasound image in young adults: A comparative study of muscle cross-sectional area of lower extermity of Seoul and Hanoi in Vietnam. J Kor Phys Ther. 2014;26(5):324-30.
  8. Greig AM, Straker LM, Briggs AM. Cervical erector spinae and upper trapezius muscle activity in children using different information technologies. Physiotherapy. 2005;91(2):119-26. https://doi.org/10.1016/j.physio.2004.10.004
  9. Administration OSaH. Working safely with video display terminal. 1991.
  10. Association CS. A guideline to office ergonomics. 1989.
  11. Kumar S. A computer desk for bifocal lens wearers, with special emphasis on selected telecommunication tasks. Ergonomics. 1994;37(10): 1669-78. https://doi.org/10.1080/00140139408964944
  12. Turville KL, Psihogios JP, Ulmer TR, et al. The effects of video display terminal height on the operator: A comparison of the 15 degree and 40 degree recommendations. Appl Ergon. 1998;29(4):239-46. https://doi.org/10.1016/S0003-6870(97)00048-3
  13. Park HJ. Eye functiona test and refactor test for optician. Hyunmoon, 2001.
  14. Jun DH. Effect of arm movement with cranio-cervical flexion test on muscle activity. Daegu University. Dissertation of Master's Degree. 2012.
  15. Amaro A, Amado F, Duarte JA, et al. Gluteus medius muscle atrophy is related to contralateral and ipsilateral hip joint osteoarthritis. Int J Sports Med. 2007;28(12):1035-9. https://doi.org/10.1055/s-2007-965078
  16. Koppenhaver SL, Hebert JJ, Fritz JM, et al. Reliability of rehabilitative ultrasound imaging of the transversus abdominis and lumbar multifidus muscles. Arch Phys Med Rehabil. 2009;90(1):87-94. https://doi.org/10.1016/j.apmr.2008.06.022
  17. Jull G, Kristjansson E, Dall'Alba P. Impairment in the cervical flexors: A comparison of whiplash and insidious onset neck pain patients. Man Ther. 2004;9(2):89-94. https://doi.org/10.1016/S1356-689X(03)00086-9
  18. Cagnie B, Derese E, Vandamme L, et al. Validity and reliability of ultrasonography for the longus colli in asymptomatic subjects. Man Ther. 2009; 14(4):421-6. https://doi.org/10.1016/j.math.2008.07.007
  19. Falla D, Jull G, Dall'Alba P, et al. An electromyographic analysis of the deep cervical flexor muscles in performance of craniocervical flexion. Phys Ther. 2003;83(10):899-906.
  20. Hodges PW, Pengel LH, Herbert RD, et al. Measurement of muscle contraction with ultrasound imaging. Muscle Nerve. 2003;27(6):682-92. https://doi.org/10.1002/mus.10375
  21. Falla DL, Jull GA, Hodges PW. Patients with neck pain demonstrate reduced electromyographic activity of the deep cervical flexor muscles during performance of the craniocervical flexion test. Spine (Phila Pa 1976). 2004;29(19):2108-14. https://doi.org/10.1097/01.brs.0000141170.89317.0e
  22. Yun KH, Kim K. Effect of craniocervical flexion exercise using sling on thickness of sternocleidomastoid muscle and deep cervical flexor muscle. J Kor Soc Phys Med. 2013;8(2):253-61. https://doi.org/10.13066/kspm.2013.8.2.253