Effect of Aging on Anticipatory Postural Adjustment and Reaction Times in the Pre-Crossing Phase of Obstacle Negotiation

Maryam Hayati¹, Saeed Talebian^1*, Hassan Ashayeri², Behrouz Attarbashi Moghadam¹

¹Department of Physical Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran.
²Department of Basic Sciences, School of Rehabilitation, Iran University of Medical Sciences, Tehran, Iran.

DOI: 10.4236/aar.2015.45017                

Abstract

Background: Obstacle crossing is the common reason of falling in older adults. Anticipatory postural adjustments phase (APAP) and reaction time phase (RTP) are two important factors in falling prediction. According to previous studies, these parameters increase in older adults at high risk falling. This study explored the effect of aging on APAP and RTP in obstacle negotiation. Method: Nineteen older adults (mean age: 66.73 ± 3.38 years) and twelve young adults (mean age: 26.5 ± 4.37 years), participated in this study. Participants take part in gait initiation task from a starting position on a force platform under two conditions, unobstructed and obstructed (obstacle placed at 1 m from the initial position). RTP and APAP were measured and Timed “Up” & “Go” test (TUG) as a functional test, recorded for all participants. Results: There was no significant difference between healthy young and older adults in RTP and APAP in the unobstructed and obstructed conditions. TUG test was the most sensitive indicator of falling between two groups. Conclusion: Information processing capacity for motor planning and proper strategy selection in pre crossing phase of obstacle negotiation did not have significant difference in healthy old and young groups. Maybe in respect to select healthy older adults without any neurological disorders and cognitive impairments, low attention demand of well learned walking and obstacle negotiation tasks, lead to perform both postural task more automatically and without any significant difference detection.

Keywords

Obstacle Negotiation, Fall, Anticipatory Postural Adjustment Phase, Aging, Reaction Time Phase

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Umeura, K.Y.M., Nagai, K. and Ichihashi, N. (2011) Older Adults at High Risk of Falling Need More Time for Anticipatory Postural Adjustment in the Precrossing Phase of Obstacle Negotiation. Journal of Gerontology, 66A, 904-909. http://dx.doi.org/10.1093/gerona/glr081
[2]	Uemura, K., Yamada, M., Nagai, K., Tanaka, B., Mori, S. and Ichihashi, N. (2012) Fear of Falling Is Associated with Prolonged Anticipatory Postural Adjustment during Gait Initiation under Dual-Task Conditions in Older Adults. Gait Posture, 35, 282-286. http://dx.doi.org/10.1016/j.gaitpost.2011.09.100
[3]	Martinez-Mendez, R., Sekine, M. and Tamura, T. (2011) Detection of Anticipatory Postural Adjustments Prior to Gait Initiation Using Inertial Wearable Sensors. Journal of Neuroengineering and Rehabilitation, 8, 17. http://dx.doi.org/10.1186/1743-0003-8-17
[4]	Shen, X., Fujiwara, K. and Tomita, H. (2009) Anticipatory Postural Control Associated with Bilateral Arm Flexion and Event-Related Potential in a Kanji Stroop-Like Task. Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology, 120, 827-833.
[5]	Ayan, C., Cancela, J.M., Gutierrez, A. and Prieto, I. (2013) Influence of the Cognitive Impairment Level on the Performance of the Timed “Up & Go” Test (TUG) in Elderly Institutionalized People. Archives of Gerontology and Geriatrics, 56, 44-49. http://dx.doi.org/10.1016/j.archger.2012.06.002
[6]	Hass, C.J., Waddell, D.E., Wolf, S.L., Juncos, J.L. and Gregor, R.J. (2008) Gait Initiation in Older Adults with Postural Instability. Clinical Biomechanics, 23, 743-753. http://dx.doi.org/10.1016/j.clinbiomech.2008.02.012
[7]	Halliday, S.E., Winter, D.A., Frank, J.S., Patla, A.E. and Prince, F. (1998) The Initiation of Gait in Young, Elderly, and Parkinson’s Disease Subjects. Gait Posture, 8, 8-14. http://dx.doi.org/10.1016/S0966-6362(98)00020-4
[8]	Novak, A.C. and Deshpande, N. (2014) Effects of Aging on Whole Body and Segmental Control While Obstacle Crossing under Impaired Sensory Conditions. Human Movement Science, 35, 121-130. http://dx.doi.org/10.1016/j.humov.2014.03.009
[9]	Stins, J.F., van Gelder, L.M., Oudenhoven, L.M. and Beek, P.J. (2015) Biomechanical Organization of Gait Initiation Depends on the Timing of Affective Processing. Gait Posture, 41, 159-163. http://dx.doi.org/10.1016/j.gaitpost.2014.09.020
[10]	Hass, C.J., Gregor, R.J., Waddell, D.E., Oliver, A., Smith, D.W., Fleming, R.P., et al. (2004) The Influence of Tai Chi Training on the Center of Pressure Trajectory During Gait Initiation in Older Adults. Archives of Physical Medicine and Rehabilitation, 85, 1593-1598. http://dx.doi.org/10.1016/j.apmr.2004.01.020
[11]	Uemura, K., Yamada, M., Nagai, K., Shinya, M. and Ichihashi, N. (2012) Effect of Dual-Tasking on the Center of Pressure Trajectory at Gait Initiation in Elderly Fallers and Non-Fallers. Aging Clinical and Experimental Research, 24, 152-156. http://dx.doi.org/10.1007/BF03325161
[12]	Polcyn, A.F., Lipsitz, L.A., Kerrigan, D.C. and Collins, J.J. (1998) Age-Related Changes in the Initiation of Gait: Degradation of Central Mechanisms for Momentum Generation. Archives of Physical Medicine and Rehabilitation, 79, 1582-1589. http://dx.doi.org/10.1016/S0003-9993(98)90425-7
[13]	Wei, T.-S., Huang, C.-J., Chen, S.-K., Guo, L.-Y. and Wu, W.-L. (2011) Effect of Age on Attentional Demands and Postural Control of Obstacle Crossing: Evidence from a Dual-Task Approach. Journal of Medical and Biological Engineering, 32, 36-41.
[14]	Brown, L.A., McKenzie, N.C. and Doan, J.B. (2005) Age-Dependent Differences in the Attentional Demands of Obstacle Negotiation. The Journals of Gerontology Series A, Biological Sciences and Medical Sciences, 60, 924-927. http://dx.doi.org/10.1093/gerona/60.7.924
[15]	Sparrow, W.A., Bradshaw, E.J., Lamoureux, E. and Tirosh, O. (2002) Ageing Effects on the Attention Demands of Walking. Human Movement Science, 21, 961-972. http://dx.doi.org/10.1016/S0167-9457(02)00154-9
[16]	Barbieri, F.A., dos Santos, P.C., Simieli, L., Orcioli-Silva, D., van Dieen, J.H. and Gobbi, L.T. (2014) Interactions of Age and Leg Muscle Fatigue on Unobstructed Walking and Obstacle Crossing. Gait Posture, 39, 985-990. http://dx.doi.org/10.1016/j.gaitpost.2013.12.021
[17]	Galna, B., Peters, A., Murphy, A.T. and Morris, M.E. (2009) Obstacle Crossing Deficits in Older Adults: A Systematic Review. Gait Posture, 30, 270-275. http://dx.doi.org/10.1016/j.gaitpost.2009.05.022
[18]	Tseng, S.C., Stanhope, S.J. and Morton, S.M. (2009) Impaired Reactive Stepping Adjustments in Older Adults. The Journals of Gerontology Series A, Biological Sciences and Medical Sciences, 64, 807-815. http://dx.doi.org/10.1093/gerona/glp027
[19]	Riley, M.A., Baker, A.A., Schmit, J.M. and Weaver, E. (2005) Effects of Visual and Auditory Short-Term Memory Tasks on the Spatiotemporal Dynamics and Variability of Postural Sway. Journal of Motor Behavior, 37, 311-324. http://dx.doi.org/10.3200/JMBR.37.4.311-324
[20]	Novaes, R.D., Miranda, A.S. and Dourado, V.Z. (2011) Usual Gait Speed Assessment in Middle-Aged and Elderly Brazilian Subjects. Revista Brasileira de Fisioterapia, 15, 117-122. http://dx.doi.org/10.1590/s1413-35552011000200006
[21]	Smidt, G.L. (1998) Gait and Rehabilitation. 68-71.
[22]	Greany, J.F. and Di Fabio, R.P. (2008) Saccade to Stepping Delays in Elders at High Risk for Falling. Aging Clinical and Experimental Research, 20, 428-433. http://dx.doi.org/10.1007/BF03325148
[23]	Herman, T., Giladi, N. and Hausdorff, J.M. (2011) Properties of the “Timed Up and Go” Test: More than Meets the Eye. Gerontology, 57, 203-210. http://dx.doi.org/10.1159/000314963