Acute effects on cognitive performance following bouts of standing and light-intensity physical activity in a simulated workplace environment.

December 8, 2016

Authors: Buman MP, Crespo NC, Gaesser GA, Mullane SL, Zeigler ZS

Journal: Journal of Science and Medicine in Sport / Sports Medicine Australia

DOI: 10.1016/j.jsams.2016.09.015

Year Published: 2016

OBJECTIVES:
To compare acute cognitive effects following bouts of standing (STAND), cycling (CYCLE) and walking (WALK) to a sit-only (SIT) condition.

DESIGN:
Randomized cross-over full-factorial study.

METHODS:
Nine overweight (BMI=29±3kg/m2) adults (30±15years; 7 females, 2 males) completed four conditions (SIT, STAND, WALK and CYCLE) across a 6h period with a 7days washout period between conditions. SIT consisted of uninterrupted sitting. Experimental conditions included intermittent bouts of standing (STAND), cycling (CYCLE) and walking (WALK). A cognitive performance battery (Cogstate) was completed twice in a seated position following bouts of standing and light-intensity physical activity. Mixed-effects models compared between-condition differences in standardized score (z-score), accuracy (%), and speed (log10ms).

RESULTS:
Cognitive performance z-score and accuracy measures were higher during STAND, CYCLE and WALK (P<0.05) conditions compared to the SIT condition. CYCLE was better than other experimental conditions.

CONCLUSIONS:
Compared to uninterrupted sitting, short bouts of standing or light-intensity cycling and walking may improve acute cognitive performance.

Copyright © 2016 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

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