@article{ref1,
title="Should the minimal intervention principle be considered when investigating dual-tasking effects on postural control?",
journal="Brain sciences",
year="2019",
author="Wachholz, Felix and Tiribello, Federico and Promsri, Arunee and Federolf, Peter",
volume="10",
number="1",
pages="e1001001-e1001001",
abstract="Dual-tasking charges the sensorimotor system with performing two tasks simultaneously. Center of pressure (COP) analysis reveals the postural control that is altered during dual-tasking, but may not reveal the underlying neural mechanisms. In the current study, we hypothesized that the minimal intervention principle (MIP<i>)</i> provides a concept by which dual-tasking effects on the organization and prioritization of postural control can be predicted. Postural movements of 23 adolescents (age 12.7 ± 1.3; 8 females) and 15 adults (26.9 ± 2.3) were measured in a bipedal stance with eyes open, eyes closed and eyes open while performing a dual-task using a force plate and 39 reflective markers. COP data was analyzed by calculating the mean velocity, standard deviation and amplitude of displacement. Kinematic data was examined by performing a principal component analysis (PCA) and extracting postural movement components. Two variables were determined to investigate changes in amplitude (<i>aVar</i><sub>k</sub>) and in control (<i>N</i><sub>k</sub>) of the principal movement components. <br><br>RESULTS in <i>aVar</i><sub>k</sub> and in <i>N</i><sub>k</sub> agreed well with the predicted dual-tasking effects. Thus, the current study corroborates the notion that the MIP should be considered when investigating postural control under dual-tasking conditions.<p /> <p>Language: en</p>",
language="en",
issn="2076-3425",
doi="10.3390/brainsci10010001",
url="http://dx.doi.org/10.3390/brainsci10010001"
}