TY  - JOUR
PY  - 2011//
TI  - Dual-task effects of spontaneous speech and executive function on gait in aging: Exaggerated effects in slow walkers
JO  - Gait and posture
A1  - Plummer-D'Amato, Prudence
A1  - Altmann, Lori J. P.
A1  - Reilly, Kevin
SP  - 233
EP  - 237
VL  - 33
IS  - 2
N2  - 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>
LA  - en
SN  - 0966-6362
UR  - http://dx.doi.org/10.1016/j.gaitpost.2010.11.011
ID  - ref1
ER  -