Dual-tasking interferes with obstacle avoidance reactions in healthy seniors

Gait & Posture
Judith HegemanJacques Duysens

Abstract

Dual-tasking can lead to falls, as does a deterioration of obstacle avoidance (OA) skills. Hence, it is expected that a combination of both would be even more detrimental, especially when OA is time-critical. Previous studies confirmed this expectation, however, due to several limitations in their design it is yet too early to draw any definitive conclusions on the allocation of attentional resources in OA under dual-task conditions. Therefore, attentionally demanding primary and secondary tasks were used with the instruction to perform as well as possible on both tasks. Nineteen healthy senior individuals (60±4.7 years, 8 females) performed an OA task on a treadmill while walking at 3 km/h as a single task and combined with an auditory Stroop task. Biceps femoris (BF) muscle response times, OA failure rates and composite scores were used to evaluate the data. Increased OA failure rates (3%, p=0.03) and delayed BF response times (21 ms, p<0.001) were found under dual-task conditions. Composite scores were reduced during (p<0.001) and just after obstacle crossing (p=0.003). In conclusion, dual-tasking during time-critical OA affects the motor as well as the cognitive task when subjects are instructed to keep up performance on bo...Continue Reading

References

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Citations

Feb 21, 2016·Archives of Gerontology and Geriatrics·Eliane C GuadagninFelipe P Carpes
Dec 24, 2015·Frontiers in Neurology·Daniel S Peterson, Katrijn Smulders
Dec 31, 2015·Experimental Brain Research·Joseph O NnodimJames A Ashton-Miller
Aug 25, 2015·Experimental Brain Research·Masood MazaheriJacques Duysens
Jul 25, 2013·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Camilla Zamfolini HallalMauro Gonçalves
Dec 3, 2014·Human Movement Science·Zrinka PotocanacJacques Duysens
Jul 28, 2016·Parkinsonism & Related Disorders·Katrijn SmuldersFay B Horak
Oct 1, 2020·European Journal of Applied Physiology·Yajie ZhangJacques Duysens
Jul 25, 2012·British Journal of Clinical Pharmacology·Judith HegemanJacques Duysens
May 10, 2017·Experimental Brain Research·Zrinka Potocanac, Jacques Duysens
Jul 6, 2020·Gerontology·Pedro Ángel Latorre RománJuan Antonio Párraga Montilla

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