TY - JOUR
T1 - The relationships between prolonged sedentary time, physical activity, cognitive control, and P3 in adults with overweight and obesity
AU - Pindus, Dominika M.
AU - Edwards, Caitlyn G.
AU - Walk, Anne M.
AU - Reeser, Ginger
AU - Burd, Nicholas A.
AU - Holscher, Hannah D.
AU - Khan, Naiman A.
N1 - Department of Kinesiology and Community Health, the University of Illinois; the USDA National Institute of Food and Agriculture, Hatch project 1009249. Additional support: the Hass Avocado Board (Institutional Award Number 079273). We thank the study participants.
PY - 2021/4
Y1 - 2021/4
N2 - Background/objectives: To assess the relationships between daily sedentary time (ST), prolonged ST, moderate-to-vigorous physical activity (MVPA), and behavioral and neuroelectric indices of cognitive control in adults with overweight and obesity (OW/OB). Subjects/methods: A cross-sectional design was used. Overall, 89 adults (BMI = 31.9 ± 4.9 kg/m2) provided measures of ST, prolonged ST (i.e., ST accumulated in ≥20 min), and MVPA from a hip-worn accelerometer worn over 7 days. Inhibitory control was measured with a modified Eriksen flanker task and cognitive flexibility with task switching. The amplitude and the latency of the P3 component of event-related potentials during each task were used as measures of attentional resource allocation and information processing speed, respectively. Results: After adjusting for ST and MVPA, prolonged ST was related to greater interference (i.e., a larger decrement in accuracy between congruent and incongruent trials of the flanker task) indicative of a specific relationship between prolonged ST and poorer inhibitory control. Before adjusting for ST, MVPA was related to a smaller Global Switch Cost expressed as larger (more positive) amplitude of the P3 difference wave (mixed-task minus single-task condition of the switch task). Adjustment for ST attenuated this association to non-significance. Conclusions: Our findings suggest that future interventions focused on improving inhibitory control in adults with OW/OB should target restructuring ST in addition to current efforts to increase MVPA.
AB - Background/objectives: To assess the relationships between daily sedentary time (ST), prolonged ST, moderate-to-vigorous physical activity (MVPA), and behavioral and neuroelectric indices of cognitive control in adults with overweight and obesity (OW/OB). Subjects/methods: A cross-sectional design was used. Overall, 89 adults (BMI = 31.9 ± 4.9 kg/m2) provided measures of ST, prolonged ST (i.e., ST accumulated in ≥20 min), and MVPA from a hip-worn accelerometer worn over 7 days. Inhibitory control was measured with a modified Eriksen flanker task and cognitive flexibility with task switching. The amplitude and the latency of the P3 component of event-related potentials during each task were used as measures of attentional resource allocation and information processing speed, respectively. Results: After adjusting for ST and MVPA, prolonged ST was related to greater interference (i.e., a larger decrement in accuracy between congruent and incongruent trials of the flanker task) indicative of a specific relationship between prolonged ST and poorer inhibitory control. Before adjusting for ST, MVPA was related to a smaller Global Switch Cost expressed as larger (more positive) amplitude of the P3 difference wave (mixed-task minus single-task condition of the switch task). Adjustment for ST attenuated this association to non-significance. Conclusions: Our findings suggest that future interventions focused on improving inhibitory control in adults with OW/OB should target restructuring ST in addition to current efforts to increase MVPA.
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U2 - 10.1038/s41366-020-00734-w
DO - 10.1038/s41366-020-00734-w
M3 - Article
C2 - 33526853
AN - SCOPUS:85100271863
SN - 0307-0565
VL - 45
SP - 746
EP - 757
JO - International Journal of Obesity
JF - International Journal of Obesity
IS - 4
ER -