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Randomized Controlled Trial
. 2017 May;20(5):489-493.
doi: 10.1016/j.jsams.2016.09.015. Epub 2016 Oct 8.

Acute Effects on Cognitive Performance Following Bouts of Standing and Light-Intensity Physical Activity in a Simulated Workplace Environment

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Randomized Controlled Trial

Acute Effects on Cognitive Performance Following Bouts of Standing and Light-Intensity Physical Activity in a Simulated Workplace Environment

Sarah L Mullane et al. J Sci Med Sport. .

Abstract

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.

Keywords: Cognitive performance; Posture; Sedentary behavior; Workplace environment.

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