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 . ) .
The effect of experimentally induced sedentariness on mood and psychobiological responses to mental stress
Background Evidence suggests a link between sedentary behaviours and depressive symptoms . Mechanisms underlying this relationship are not understood , but inflammatory processes may be involved . Autonomic and inflammatory responses to stress may be heightened in sedentary individuals contributing to risk , but no study has experimentally investigated this . Aims To examine the effect of sedentary time on mood and stress responses using an experimental design . Method Forty-three individuals were assigned to a free-living sedentary condition  and to  a control condition ( usual activity ) in a cross-over , r and omised fashion and were tested in a psychophysiology laboratory after spending 2 weeks in each condition . Participants completed mood question naires ( General Health Question naire and Profile of Mood States ) and wore a motion sensor for 4 weeks . Results Sedentary time increased by an average of 32 min/day ( P = 0.01 ) during the experimental condition compared with control . Being sedentary result ed in increases in negative mood independent of changes in moderate to vigorous physical activity ( ΔGHQ = 6.23 , ΔPOMS = 2.80 ) . Mood disturbances were associated with greater stress-induced inflammatory interleukin-6 ( IL-6 ) responses ( β = 0.37 ) . Conclusions Two weeks of exposure to greater free-living sedentary time result ed in mood disturbances independent of reduction in physical activity . Stress-induced IL-6 responses were associated with changes in mood
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 . ) .