Conclusion : These data suggest that sedentary behavior is not associated with changes in cognitive performance in interventions that intend to reduce sedentary behavior .
Background : It is now well-established that sedentarity has a negative impact on the physiological functioning and health of humans , whereas very little is known about the psychological repercussions , especially in cognitive functioning .
Yet , study ing the cognitive effects of the sedentary lifestyle is particularly relevant in the short term for productivity and in the long term for cognitive health ( accelerated aging ) .
This systematic review therefore aims to make an inventory of the potential cognitive effects of sedentarity at the workplace .
Methods : Pubmed , PsycINFO , Cochrane , Web of Science , and Scopus were search ed for English- language peer- review ed articles published between January 1 , 2000 and December 31 , 2017 to identify studies including sedentary behavior  and objective measures from cognitive domains ( cognitive inhibition , cognitive flexibility , working memory , etc . ) .
Effect of frequent interruptions of prolonged sitting on self-perceived levels of energy, mood, food cravings and cognitive function
Background While physical activity has been shown to improve cognitive performance and well-being , office workers are essentially sedentary . We compared the effects of physical activity performed as ( i ) one bout in the morning or ( ii ) as microbouts spread out across the day to ( iii ) a day spent sitting , on mood and energy levels and cognitive function . Methods In a r and omized crossover trial , 30 sedentary adults completed each of three conditions : 6 h of uninterrupted sitting ( SIT ) , SIT plus 30 min of moderate-intensity treadmill walking in the morning ( ONE ) , and SIT plus six hourly 5-min microbouts of moderate-intensity treadmill walking ( MICRO ) .  Self-perceived energy , mood , and appetite were assessed with visual analog scales . Vigor and fatigue were assessed with the Profile of Mood State question naire . Cognitive function was measured using a flanker task and the Comprehensive Trail Making Test . Intervention effects were tested using linear mixed models . Results Both ONE and MICRO increased self-perceived energy and vigor compared to SIT ( p < 0.05 for all ) . MICRO , but not ONE , improved mood , decreased levels of fatigue and reduced food cravings at the end of the day compared to SIT ( p < 0.05 for all ) . Cognitive function was not significantly affected by condition . Conclusions In addition to the beneficial impact of physical activity on levels of energy and vigor , spreading out physical activity throughout the day improved mood , decreased feelings of fatigue and affected appetite . Introducing short bouts of activity during the workday of sedentary office workers is a promising approach to improve overall well-being at work without negatively impacting cognitive performance . Trial registration NCT02717377 , registered 22 March 2016
Conclusion : These data suggest that sedentary behavior is not associated with changes in cognitive performance in interventions that intend to reduce sedentary behavior .
Background : It is now well-established that sedentarity has a negative impact on the physiological functioning and health of humans , whereas very little is known about the psychological repercussions , especially in cognitive functioning .
Yet , study ing the cognitive effects of the sedentary lifestyle is particularly relevant in the short term for productivity and in the long term for cognitive health ( accelerated aging ) .
This systematic review therefore aims to make an inventory of the potential cognitive effects of sedentarity at the workplace .
Methods : Pubmed , PsycINFO , Cochrane , Web of Science , and Scopus were search ed for English- language peer- review ed articles published between January 1 , 2000 and December 31 , 2017 to identify studies including sedentary behavior  and objective measures from cognitive domains ( cognitive inhibition , cognitive flexibility , working memory , etc . ) .