@article{ref1,
title="Dual-task effects of spontaneous speech and executive function on gait in aging: Exaggerated effects in slow walkers",
journal="Gait and posture",
year="2011",
author="Plummer-D'Amato, Prudence and Altmann, Lori J. P. and Reilly, Kevin",
volume="33",
number="2",
pages="233-237",
abstract="This study compared the effects of spontaneous speech and executive function on gait and investigated the effects of single-task gait speed on dual-task costs. Twenty-one older adults (74.7years, SD 5.9) and 23 younger adults (22years, SD 1.2) walked for 60s while performing an auditory Stroop task and a spontaneous speech task; they also performed each task in isolation. Walking while talking significantly reduced gait speed in both groups; however, only older adults experienced significant cognitive-motor interference during the Stroop task. Stride duration variability and gait symmetry were also affected by the speech task in older but not younger adults. Dual-task costs on gait speed were greater in slow-walking older adults than fast walkers. These results demonstrate that spontaneous speech is a highly demanding task that has a profound impact on gait in older adults, especially those with gait speed <1m/s.<p /> <p>Language: en</p>",
language="en",
issn="0966-6362",
doi="10.1016/j.gaitpost.2010.11.011",
url="http://dx.doi.org/10.1016/j.gaitpost.2010.11.011"
}