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Dual task prioritization during overground and treadmill walking
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AbstractBackgroundThe dual-task effect on walking performance is different during treadmill and overground walking, though the cause of this difference is unknown. This study examined the effects of task prioritization on overground and treadmill dual-task walking. MethodTwenty-two adults walked overground and on a treadmill under three dual-task conditions: prioritization of walking performance, prioritization of cognitive performance, or no prioritization. ResultsCompared to single-task walking, stride velocity was reduced and stride time variability was increased during dual-task overground walking. During treadmill walking, there was no dual-task effect on walking performance, but cognitive task performance was improved. Prioritization of the cognitive task reduced the dual-task effect on stride velocity during overground walking only, whilst prioritization of the walking task reduced cognitive task performance in both walking modalities. SignificanceThese results corroborate recent findings that the dual-task effects on treadmill walking are not equivalent to those on overground walking. Healthy adults appear to prioritize cognitive task performance during dual-task walking. However, the effects of this prioritization on dual-task performance depend on the walking modality.
Title: Dual task prioritization during overground and treadmill walking
Description:
AbstractBackgroundThe dual-task effect on walking performance is different during treadmill and overground walking, though the cause of this difference is unknown.
This study examined the effects of task prioritization on overground and treadmill dual-task walking.
MethodTwenty-two adults walked overground and on a treadmill under three dual-task conditions: prioritization of walking performance, prioritization of cognitive performance, or no prioritization.
ResultsCompared to single-task walking, stride velocity was reduced and stride time variability was increased during dual-task overground walking.
During treadmill walking, there was no dual-task effect on walking performance, but cognitive task performance was improved.
Prioritization of the cognitive task reduced the dual-task effect on stride velocity during overground walking only, whilst prioritization of the walking task reduced cognitive task performance in both walking modalities.
SignificanceThese results corroborate recent findings that the dual-task effects on treadmill walking are not equivalent to those on overground walking.
Healthy adults appear to prioritize cognitive task performance during dual-task walking.
However, the effects of this prioritization on dual-task performance depend on the walking modality.
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