Journal of the Korean Society of Physical Medicine (대한물리의학회지)

The Korean Society of Physical Medicine (대한물리의학회)
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Age Effects on Center of Mass during Obstacle Crossing

장애물 보행 시 노화에 따른 신체질량중심의 변화

  • Son, Nam-Kuk (Department of Physical Therapy, College of Health Science, Korea University) ;
  • Kim, Hyeong-Dong (Department of Physical Therapy, College of Health Science, Korea University)
  • 손남국 (고려대학교 보건과학대학 물리치료학과) ;
  • 김형동 (고려대학교 보건과학대학 물리치료학과)
  • Received : 2014.01.12
  • Accepted : 2014.02.20
  • Published : 2014.02.28
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Abstract

PURPOSE: The purpose of this study was to compare three dimensional displacement and peak velocity of the center of mass (COM) during obstacle crossing in young and older adults. METHODS: 10 young adults (6 males/4 females, $24.6{\pm}1.9$ years, age range: 22.0-26.9) and 10 older adults (1 male/9 females, $76.9{\pm}5.1$ years, age range: 65.2-81.2) participated in the study. Both groups crossed an obstacle, which is 10% of leg length, and COM was measured using motion analysis system. Independent t-test was used to find significant differences between two groups. RESULTS: The older adults showed significantly greater and faster COM displacement and peak velocity in mediolateral (M-L) direction as compared with young adults (p<.01 and p<.001 respectively). However, the young adults showed significantly greater and faster COM displacement and peak velocity in anteroposterior (A-P) direction as compared with older adults (p<.05 and p<.001 respectively). Furthermore, the young adults showed faster peak velocity of COM in vertical direction as compared with older adults (p<.001). However, no significant difference was found in the COM displacement in vertical direction between two groups. CONCLUSION: Greater and faster COM displacement and peak velocity in M-L direction in older adults were due to compensatory adjustment for appropriate contact on base of support of swing limb. Thus, the motion of the COM in M-L direction may be a crucial factor to identify risk of falls in older adults.

Keywords

References

  1. Bird ML, Hill K, Ball M, et al. Effects of resistance and flexibility exercise interventions on balance and related measures in older adults. J Aging Phys Act. 2009;17(4):444-54. https://doi.org/10.1123/japa.17.4.444
  2. Campbell AJ, Reinken J, Allan BC, et al. Falls in old age:a study of frequency and related clinical factors. Age Ageing. 1981;10(4):264-70. https://doi.org/10.1093/ageing/10.4.264
  3. Campbell AJ, Borrie MJ, Spears GF, et al. Circumstances and consequences of falls experienced by a community population 70 years and over during a prospective study. Age Ageing. 1990;19(2):136-41. https://doi.org/10.1093/ageing/19.2.136
  4. Chen H C, Ashton-Miller JA, Alexander NB, et al. Age effects on strategies used to avoid obstacles. Gait Posture. 1994;2(3):139-46. https://doi.org/10.1016/0966-6362(94)90001-9
  5. Chou L-S, Kaufman KR, Brey RH, et al. Motion of the whole body's center of mass when stepping over obstacles of different heights. Gait Posture. 2001;13(1):17-26. https://doi.org/10.1016/S0966-6362(00)00087-4
  6. Chou L, Kaufman KR, Hahn ME, et al. Medio-lateral motion of the center of mass during obstacle crossing distinguishes elderly individuals with imbalance. Gait Posture. 2003;18(3):125-33.
  7. Cummings SR, Black DM, Nevitt MC, et al. Appendicular bone density and age predict hip fracture in women. JAMA. 1990;263(5):665-8. https://doi.org/10.1001/jama.1990.03440050059033
  8. Fiastone MA, Evans WJ. The etiology and reversibility of muscle dysfunction in the aged. J Gerontol. 1993;48S:77-83.
  9. Greenspan SL, Myers ER, Kiel DP, et al. Fall direction, bone mineral density, and function: risk factors for hip fracture in frail nursing home elderly. Am J Med. 1998;104(6):539-45. https://doi.org/10.1016/S0002-9343(98)00115-6
  10. Hahn ME, Chou L-S. Age related reduction in sagittal plane center of mass motion during obstacle crossing. J Biomech. 2004;37(6):837-44. https://doi.org/10.1016/j.jbiomech.2003.11.010
  11. Hayes WC, Myers ER, Rovinovitch SN, et al. Etiology and prevention of age related hip fractures. Bone. 1996;18(1 suppl):77S-86S. https://doi.org/10.1016/8756-3282(95)00383-5
  12. Horak F, Diener HC, Nashner LM. Influence of central set on human postural response. J Neurophysiol. 1989a;62:363.
  13. Huang SC, Lu TU, Chen HL, et al. Age and height effects on the center of mass and center of pressure inclination angles during obstacle crossing. Med Eng Phys. 2008;30(8):968-75. https://doi.org/10.1016/j.medengphy.2007.12.005
  14. Kadaba MP, Ramakrishnan HK, Wootten ME. Measurement of lower extremity kinematics during level walking. J Orthop Res. 1990;8(3):383-92. https://doi.org/10.1002/jor.1100080310
  15. Kang YW, Na DL, Hahn SH. A validity study on the korean mini-mental state examination (K-MMSE) in dementia patients. Korean J Neurology. 1997;15(2):300-8.
  16. Keffigan DG, Lee LW, Collins JJ, et al. Reduce hip extension during walking: healthy elderly and fallers versus young adults. Arch Phys Med Rehabil. 2001;82(1):26-30. https://doi.org/10.1053/apmr.2001.18584
  17. Kim HD. The influence of aging on the center of pressure trajectory: a comparison of crossing an obstacle and stepping onto a curb from a position of quiet stance. J Phys Ther Sci. 2009;21(2):183-8. https://doi.org/10.1589/jpts.21.183
  18. Lockhart TE, Smith JL, Woldstad JC. Effects of aging on the biomechanics of slips and falls. Hum Factors. 2005;47(4):708-29 https://doi.org/10.1518/001872005775571014
  19. Lord SR, Ward JA, Williams P, et al. An epidemiological study of falls in older community-dwelling women:the Randwick falls and fractures study. Aust J Public Health. 1993;17(3):240-5.
  20. Mackinnon CD, Winter DA. Control of whole body balance of the frontal plane during human walking. J Biomech. 1993;26(6):633-44. https://doi.org/10.1016/0021-9290(93)90027-C
  21. McFadyen BJ, Prince F. Avoidance and accommodation of surface height changes by healthy, communitydwelling, young and elderly men. J Gerontol. 2002;57(4):B166-B74. https://doi.org/10.1093/gerona/57.4.B166
  22. Moghadam M, Ashayeri H, Salavati M, et al. Reliability center of pressure measures of postural stability in healthy older adults: effects of postural task difficulty and cognitive load. Gait Posture. 2011;33(4):651-5. https://doi.org/10.1016/j.gaitpost.2011.02.016
  23. Nevitt MC, Cummings SR. Type of fall and risk of hip and wrist fractures: the study of osteoporotic fractures research group. J Am Geriatr Soc. 1993;41(11):1226-34. https://doi.org/10.1111/j.1532-5415.1993.tb07307.x
  24. Schrager MA, Kelly VE, Price R, et al. The effects on medio-lateral stability during normal and narrow base walking. Gait Posture. 2008;28(3):466-71. https://doi.org/10.1016/j.gaitpost.2008.02.009
  25. Smith LK, Lelas JL, Kerrigan DC. Gender differences in pelvic motions and center of mass displacement during walking: stereotypes quantified. J Womens Health Gend Based Med. 2002;11(5):453-8. https://doi.org/10.1089/15246090260137626
  26. Tinetti ME, Speechley M, Ginter SF. Risk factors for falls among elderly persons living in community. N Engl J Med. 1998;319(26):1071-7.
  27. Wang Y, Watanabe K. The relationship between obstacle height and center of pressure velocity during obstacle crossing. Gait Posture. 2007;27(1):172-5.

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