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European Journal of Applied Physiology

, Volume 113, Issue 12, pp 3021–3026 | Cite as

The effects of aging on postural control and selective attention when stepping down while performing a concurrent auditory response task

  • William W. N. TsangEmail author
  • Nazca K. Y. Lam
  • Kit N. L. Lau
  • Harry C. H. Leung
  • Crystal M. S. Tsang
  • Xi Lu
Original Article

Abstract

Purpose

To investigate the effects of aging on postural control and cognitive performance in single- and dual-tasking.

Methods

A cross-sectional comparative design was conducted in a university motion analysis laboratory. Young adults (n = 30; age 21.9 ± 2.4 years) and older adults (n = 30; age 71.9 ± 6.4 years) were recruited. Postural control after stepping down was measured with and without performing a concurrent auditory response task. Measurement included: (1) reaction time and (2) error rate in performing the cognitive task; (3) total sway path and (4) total sway area after stepping down.

Results

Our findings showed that the older adults had significantly longer reaction times and higher error rates than the younger subjects in both the single-tasking and dual-tasking conditions. The older adults had significantly longer reaction times and higher error rates when dual-tasking compared with single-tasking, but the younger adults did not. The older adults demonstrated significantly less total sway path, but larger total sway area in single-leg stance after stepping down than the young adults. The older adults showed no significant change in total sway path and area between the dual-tasking and when compared with single-tasking conditions, while the younger adults showed significant decreases in sway.

Conclusion

Older adults prioritize postural control by sacrificing cognitive performance when faced with dual-tasking.

Keywords

Cognition Posture Balance Aging Stairs 

Notes

Acknowledgments

The authors thank the subjects for their participation. Thanks are also due to Mr. Bill Purves for his English editorial advice. There was no financial support of this project.

Conflict of interest

No commercial party having a direct financial interest in the research findings reported here has conferred or will confer a benefit on the authors or on any organization with which the authors are associated.

References

  1. Bench CJ, Frith CD, Grasby PM, Friston KJ, Paulesu E, Frackowiak RS, Dolan RJ (1993) Investigations of the functional anatomy of attention using the Stroop test. Neuropsychologia 31(9):907–922PubMedCrossRefGoogle Scholar
  2. Clark DJ, Fielding RA (2012) Neuromuscular contributions to age-related weakness. J Gerontol A Biol Sci Med Sci 67(1):41–47PubMedCrossRefGoogle Scholar
  3. Du Pasquier RA, Blanc Y, Sinnreich M, Landis T, Burkhard P, Vingerhoets FJ (2003) The effect of aging on postural stability: a cross sectional and longitudinal study. Neurophysiol Clin 33(5):213–218PubMedCrossRefGoogle Scholar
  4. Hamel KA, Cavanagh PR (2004) Stair performance in people aged 75 and older. J Am Geriatr Soc 52:563–567PubMedCrossRefGoogle Scholar
  5. Hartley AA, Little DM (1999) Age-related differences and similarities in dual-task interference. J Exp Psychol Gen 128:416–449PubMedCrossRefGoogle Scholar
  6. Hortobagyi T, DeVita P (2000) Muscle pre- and co-activity during downward stepping are associated with leg stiffness in aging. J Electromyogr Kinesiol 10(2):117–126PubMedCrossRefGoogle Scholar
  7. Hurley MV, Rees J, Newham DJ (1998) Quadriceps function, proprioceptive acuity and functional performance in healthy young, middle-aged and elderly subjects. Age Ageing 27(1):55–62PubMedCrossRefGoogle Scholar
  8. Huxhold O, Li SC, Schmiedek F, Lindenberger U (2006) Dual-tasking postural control: aging and the effects of cognitive demand in conjunction with focus of attention. Brain Res Bull 69(3):294–305PubMedCrossRefGoogle Scholar
  9. Lacour M, Bernard-Demanze L, Dumitrescu M (2008) Posture control, aging, and attention resources: models and posture analysis methods. Neurophysiol Clin 38(6):411–421PubMedCrossRefGoogle Scholar
  10. Li F, Harmer P, Fisher KJ, McAuley E, Chaumeton N, Eckstrom E, Wilson NL (2005) Tai chi and fall reductions in older adults: a randomized controlled trial. J Gerontol A Biol Sci Med Sci 60(2):187–194PubMedCrossRefGoogle Scholar
  11. Mackey DC, Robinovitch SN (2006) Mechanisms underlying age-related differences in ability to recover balance with the ankle strategy. Gait Posture 23(1):59–68 (epub 12 Jan 2005)PubMedCrossRefGoogle Scholar
  12. Ojha HA, Kern RW, Lin CH, Winstein CJ (2009) Age affects the attentional demands of stair ambulation: evidence from a dual-task approach. Phys Ther 89(10):1080–1088PubMedCrossRefGoogle Scholar
  13. Ozcan A, Donat H, Gelecek N, Ozdirenc M, Karadibak D (2005) The relationship between risk factors for falling and the quality of life in older adults. BMC Public Health 5:90PubMedCrossRefGoogle Scholar
  14. Rankin JK, Woollacott MH, Shumway-Cook A, Brown LA (2000) Cognitive influence on postural stability: a neuromuscular analysis in young and older adults. J Gerontol A Biol Sci Med Sci 55(3):M112–M119PubMedCrossRefGoogle Scholar
  15. Rubenstein LZ (2006) Falls in older people: epidemiology, risk factors and strategies for prevention. Age Ageing 35(suppl 2):ii37–ii41PubMedCrossRefGoogle Scholar
  16. Shumway-Cook A, Woollacott M (2000) Attentional demands and postural control: the effect of sensory context. J Gerontol A Biol Sci Med Sci 55(1):M10–M16PubMedCrossRefGoogle Scholar
  17. Shumway-Cook A, Woollacott M, Kerns KA, Baldwin M (1997) The effects of two types of cognitive tasks on postural stability in older adults with and without a history of falls. J Gerontol A Biol Sci Med Sci 52(4):M232–M240PubMedCrossRefGoogle Scholar
  18. Startzell JK, Owens DA, Mulfinger LM, Cavanagh PR (2000) Stair negotiation in older people: a review. J Am Geriatr Soc 48:567–580PubMedGoogle Scholar
  19. Tang PF, Woollacott MH (1998) Inefficient postural responses to unexpected slips during walking in older adults. J Gerontol A Biol Sci Med Sci 53(6):M471–M480PubMedCrossRefGoogle Scholar
  20. Teasdale N, Simoneau M (2001) Attentional demands for postural control: the effects of aging and sensory reintegration. Gait Posture 14(3):203–210PubMedCrossRefGoogle Scholar
  21. Thelen DG, Schultz AB, Alexander NB, Ashton-Miller JA (1996) Effects of age on rapid ankle torque development. J Gerontol A Biol Sci Med Sci 51(5):M226–M232PubMedCrossRefGoogle Scholar
  22. Tombaugh TN, McIntyre NJ (1992) The mini-mental state examination: a comprehensive review. J Am Geriatr Soc 40(9):922–935PubMedGoogle Scholar
  23. Tsang WW, Hui-Chan CW (2005) Comparison of muscle torque, balance, and confidence in older tai chi and healthy adults. Med Sci Sports Exerc 37(2):280–289PubMedCrossRefGoogle Scholar
  24. Vellas BJ, Wayne SJ, Romero LJ, Baumgartner RN, Garry PJ (1997) Fear of falling and restriction of mobility in elderly fallers. Age Ageing 26:189–193PubMedCrossRefGoogle Scholar
  25. Verhaeghen P, Steitz DW, Sliwinski MJ, Cerella J (2003) Aging and dual-task performance: a meta-analysis. Psychol Aging 18(3):443–460PubMedCrossRefGoogle Scholar
  26. Yardley L, Gardner M, Bronstein A, Davies R, Buckwell D, Luxon L (2001) Interference between postural control and mental task performance in patients with vestibular disorder and healthy controls. J Neurol Neurosurg Psychiatry 71(1):48–52PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • William W. N. Tsang
    • 1
    Email author
  • Nazca K. Y. Lam
    • 1
  • Kit N. L. Lau
    • 1
  • Harry C. H. Leung
    • 1
  • Crystal M. S. Tsang
    • 1
  • Xi Lu
    • 1
  1. 1.Department of Rehabilitation SciencesThe Hong Kong Polytechnic UniversityHong KongChina

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