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Association of physical activity on the functional connectivity of the hippocampal-orbitofrontal pathway.
Phys Sportsmed ; 47(3): 290-294, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-30449247


The objective of the study is to examine the association between physical activity and hippocampal-orbitofrontal functional connectivity.


Data from the Nathan Kline Institute-Rockland Sample was utilized, which consisted of 366 participants (Mage = 43 years; 63% female). Physical activity was self-reported using the International Physical Activity Questionnaire. Hippocampal-orbitofrontal functional connectivity was assessed from magnetic resonance imaging.


Moderate-intensity physical activity was not statistically significantly associated with left hippocampal-orbitofrontal connectivity (ß = 0.001; 95% CI -0.02, 0.03; P = 0.90) or right hippocampal-orbitofrontal connectivity (ß = 0.01; 95% CI -0.01, 0.04; P = 0.22). However, vigorous-intensity physical activity was statistically significantly associated with right hippocampal-orbitofrontal connectivity (ß = 0.01; 95% CI 0.004, 0.02; P = 0.002).


Habitual engagement in intense physical activity was associated with greater hippocampal-orbitofrontal connectivity, while moderate activity engagement was not. This may have important implications for the exercise neurobiology field in the context of exercise and memory function, suggesting that intense activity may facilitate cognitive/memory functions. However, our findings should be interpreted with caution given the relatively weak associations that were observed.





Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Exercício Físico / Lobo Frontal / Hipocampo Tipo de estudo: Estudo de coorte / Incidence_studies Aspecto clínico: Etiologia Limite: Adulto / Idoso / Feminino / Humanos / Masculino / Meia-Idade / Jovem adulto Idioma: Inglês Revista: Phys Sportsmed Ano de publicação: 2019 Tipo de documento: Artigo País de afiliação: Estados Unidos