The Journal of Korean Physical Therapy

The Korean Society of Physical Therapy (대한물리치료학회)
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Muscle Activities of the Lower Extremity based on Ankle Plantar-flexion in Elderly Women

여성 노인의 발목 각도에 따른 하지근육의 근활성도 변화

  • Cho, Yong-Ho (Department of Physical Therapy, Kyungbuk College) ;
  • Choi, Jin-Ho (Department of Physical Therapy, College of Health and Therapy, Daegu Haany University)
  • 조용호 (경북전문대학 물리치료과) ;
  • 최진호 (대구한의대학교 보건치료대학 물리치료학과)
  • Received : 2009.09.25
  • Accepted : 2009.12.15
  • Published : 2009.12.25
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Abstract

Purpose: To better understand falls in elderly women, we measured differences in muscle activities of 4 lower extremity muscles (tibialis anterior, soleus, rectus femoris, biceps femoris) based on angle plantar-flexion in elderly women. Methods: Subjects were 15 healthy elderly women. No subjects had musculoskeletal or nervous disorders. EMGs were used to check muscle activity of lower extremity muscles. For statistic analysis, data were expressed as a percentage of maximal voluntary isometric contraction (%MVIC). We measured %MVIC for 5 sec under 4 conditions and did not use data for the first and last second. Muscle activities of the muscles of the lower extremities were measured based on the degree of plantar-flexion of the ankle joint. The 4 conditions corresponded to different degrees of: 0, 10, 20 and 30 degrees. This was done using a 50 cm board for measuring the degrees. Results: The tibialis anterior, soleus, and bicpes femoris showed increasing muscle activity associated with increasing degree of plantar-flexion of the ankle joint. All muscles showed a significant increase in muscle activities in association with increasing degrees. Rectus femoris showed a significant increase in muscle activity for 0 degrees and for the other degrees, but there were no further changes when plantar flexion of the ankle joint was over 10 degrees. Conclusion: Activities of the muscles of the lower extremities except rectus femoris were higher with increasing degree of plantar flexion. High muscle activity may result in muscle fatigue. Thus, increasing degree of plantar flexion may be risk factors of falls in elderly women.

Keywords

References

  1. Korea National Statistical Office. Population Census. 2005.
  2. Stel VS, Smith JH, Pluijm SM et al. Balance and mobility performance as treatable risk factors for recurrent falling in older persons. J Clin Epidemiol. 2003;56:659-68. https://doi.org/10.1016/S0895-4356(03)00082-9
  3. Swift CG. Care of older: Falls in late life and their consequences-implementing effective services. BMJ. 2001;322(7290):855-7. https://doi.org/10.1136/bmj.322.7290.855
  4. Downton J, Falls IN, Tallis R. Brochlelurst's textbook of geriatirc medicine and gerontolgy. 5th ed. London, Chuchill Livingston, 1998:154-200.
  5. Cromwell RL, Newton RA, Forrest G. Influence of vision on head stabilization strategies in older adults during walking. J Gerontol A Biol Sci Med Sci. 2002;57(7):M442-8. https://doi.org/10.1093/gerona/57.7.M442
  6. NCIPC. Costs of falls among older adults. Centers for Disease Control and Prevention. 2009.
  7. Hill K, Schwarz J. Assessment and management of falls in older people. Intern Med J. 2004;34(9-10):557-64. https://doi.org/10.1111/j.1445-5994.2004.00668.x
  8. Yoon NS, Yi KO, Kim JY et al. Comparison analysis of the variation patterns and DRM on treadmill walking by slope. The Korean Journal of Physical Education. 2000;39 (1):579-89
  9. Sohng KY, Moon JS, Kang SS et al. The survey of acitivities and fear of falling in the community dwelling elderly. Journal Korea Community Health Nursing Academic Society. 2001;15(2):323-33
  10. Kim G, Cho YH, Cha YJ et al. Effects of heel heights of shoe on muscle acitvation of lower extremity on the rocking surface in older women. Journal of The Korean Society of Medical and Biological Engineeing. 2008;29(4):316-22.
  11. Kim TY. Effect that in ankle muscle by knee angle stability and the unstable floor. Korea Sport Research. 2006;17(1): 263-74.
  12. Kendall FP, Mccreary EK, Provance PG. Muscles testing and function. 4th ed. Philadelphia, Williams & Wilkins, 1993:250-85.
  13. Hwang CM. Comparement of lumbar lordosis according to heel heigh in normal and lordosis patient with spondylolisthesis. Kyunghee University. Dissertation of Master's Degree. 2000.
  14. Han SW. The effect of forward walking and backward walking on quadriceps muscles with treadmill inclination: surface electromyographic analysis. Journal of the Korean Academy of University Trained Physical Therapists. 2005;12(1):63-70.
  15. Kim K, Seo SK, Yoon HJ et al. Correlations between muscle strength of the ankle and balance and walking in the elderly. J Kor Soc Phys Ther. 2008;20(1):33-40.
  16. Kang JH. Comparisons of the exercise types on leg muscle strenth, balance and walking ability in elders. Ewha Womens's University. Dissertation of Master's Degree. 2003.
  17. Stray-Pederson JS, Magnussen R, Kuffel E et al. Sling exercise training improves balance kicking velocity and torso stabilization in elite soccer players. Med Sci Sports Exerc. 2006;38(5):243.
  18. Kim CB, Shin JY. Effects of 12-week aquatic exercise on gait in the falls experienced elderly women. Korean Journal of Sport Biomechanics. 2007;17(4):9-16. https://doi.org/10.5103/KJSB.2007.17.4.009
  19. Kim HJ, Choi JH. Effects of 12-week exercise on the isokinetic muscular function of knee joint in the elderly women. The Korean Journal of Physical Education. 2006;45(1):655-64.
  20. Kernozek T, Durall CJ, Friske A et al. Ankle bracing, plantar-flexion angle, and ankle muscle latencies during inversion stress in healthy participants. J Athl Training. 2008; 43(1):37-43. https://doi.org/10.4085/1062-6050-43.1.37
  21. Kwon MS. A study of the joint to mechanical energy in crouching start according to the backward block inclined angle increase. Korean Journal of Sport Biomechanics. 2005; 15(1):19-28. https://doi.org/10.5103/KJSB.2005.15.1.019
  22. Hendrich AL, Bender PS, Nyhuis A. Validation of the Hendrich II fall risk model: A large concurrent case control study of hospitalized patients. Appl Nurs Res. 2003;16(1):9- 21. https://doi.org/10.1053/apnr.2003.016009
  23. Pavol MJ, Owings TM, Foley KT et al. Mechanisms leading to a fall from an induced trip in healthy older adults. J Genotol A Biol Sci Med Sci. 2001;56(7):M428-37. https://doi.org/10.1093/gerona/56.7.M428
  24. Wagner JM, Dromerick AW, Sahrmann SA et al. Upper Extremity Muscle Activation during Recovery of Reaching in Subjects with Post-stroke Hemiparesis. Clin Neurophysiol. 2007;118(1):164-76. https://doi.org/10.1016/j.clinph.2006.09.022
  25. Sieri T, Beretta G. Fall risk assessment in very old males and females living in nursing homes. Disabil Rehabil. 2004; 26(12):718-23. https://doi.org/10.1080/09638280410001704304
  26. Park EY, Kim WH, Kim GM et al. Effects of high-heel shoes on EMG activities of rectus femoris and biceps femoris. KAUTPT. 1999;6(2):32-42.
  27. Han JT, Gong WT, Lee YS. Comparison of muscle activity with lower extremity during stairs and ramp climbing of old adults by EMG. J Kor Soc Phys Ther. 2009;21(1):35-40.