mazzoli-associationsofclass-2019.pdf (2.35 MB)
Associations of class-time sitting, stepping and sit-to-stand transitions with cognitive functions and brain activity in children
journal contribution
posted on 2019-04-26, 00:00 authored by Emiliano Mazzoli, Wei-Peng TeoWei-Peng Teo, Jo SalmonJo Salmon, Caterina Pesce, Jason He, Tal Dotan Ben-Soussan, Lisa BarnettLisa BarnettPrevious research showed that children's physical activity is positively related to executive functions, whilst screen time shows negative associations. However, it is unclear how school-based sitting time and transitions from sitting to standing relate to cognition. We investigated the relationship between class time sitting/stepping/sit-to-stand transitions and cognitive functions in Grade 1-2 children. Overall, 149 children (7.7 ± 0.6 years old, 54% boys) participated. Measures included class time sitting/stepping/sit-to-stand transitions and: (i) response inhibition (i.e., response time and accuracy); (ii) lapses of attention; (iii) working memory; and (iv) brain activity (cortical haemodynamic response). Linear mixed-models, adjusting for age, sex, and clustering at the classroom level, found that more sitting time was associated with higher lapses of attention (β = 0.12, p < 0.05). Children who stepped more had quicker inhibition response time (β = -0.95, p < 0.01); however, they were less accurate in their responses (β = -0.30, p < 0.05) and this was also observed with sit-to-stand transitions (β = -0.26, p < 0.05). No associations were found with brain activity. In conclusion, reducing and breaking up sitting may help keep children focused, but the evidence regarding response inhibition is unclear.
History
Journal
International journal of environmental research and public healthVolume
16Issue
9Article number
1482Pagination
1 - 20Publisher
MDPILocation
Basel, SwitzerlandPublisher DOI
Link to full text
ISSN
1661-7827eISSN
1660-4601Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2019, The AuthorsUsage metrics
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attentionbrain activitychildrenclass timeexecutive functionsschool-basedsedentary behaviourScience & TechnologyLife Sciences & BiomedicineEnvironmental SciencesPublic, Environmental & Occupational HealthEnvironmental Sciences & EcologyNEAR-INFRARED SPECTROSCOPYSCHOOL-AGED CHILDRENPHYSICAL-ACTIVITYSEDENTARY BEHAVIORACADEMIC-PERFORMANCEHEALTH INDICATORSINTERVENTIONSACHIEVEMENTEXERCISE
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