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Title: Moderate-Vigorous physical activity across Body Mass Index in females: moderating effect of endocannabinoids and temperament
Author: Fernández Aranda, Fernando
Sauchelli, Sarah
Pastor, Antoni
González, Marcela L.
Torre Fornell, Rafael de la
Granero, Roser
Jiménez-Murcia, Susana
Baños Rivera, Rosa María
Botella Arbona, Cristina
Fernández-Real Lemos, José Manuel
Fernández García, José C.
Frühbeck, Gema
Gómez Ambrosi, Javier
Rodríguez, Roser
Tinahones, Francisco J.
Arcelus, Jon
Fagundo, Ana Beatriz
Agüera, Zaida
Miró, Jordi
Casanueva, Felipe F.
Keywords: Obesitat mòrbida
Trastorns de la conducta alimentària
Plasma sanguini
Morbid obesity
Eating disorders
Blood plasma
Issue Date: 7-Aug-2014
Publisher: Public Library of Science (PLoS)
Abstract: Background: Endocannabinoids and temperament traits have been linked to both physical activity and body mass index (BMI) however no study has explored how these factors interact in females. The aims of this cross-sectional study were to 1) examine differences among distinct BMI groups on daytime physical activity and time spent in moderate-vigorous physical activity (MVPA), temperament traits and plasma endocannabinoid concentrations; and 2) explore the association and interaction between MVPA, temperament, endocannabinoids and BMI. Methods: Physical activity was measured with the wrist-worn accelerometer Actiwatch AW7, in a sample of 189 female participants (43 morbid obese, 30 obese, and 116 healthy-weight controls). The Temperament and Character Inventory-Revised questionnaire was used to assess personality traits. BMI was calculated by bioelectrical impedance analysis via the TANITA digital scale. Blood analyses were conducted to measure levels of endocannabinoids and endocannabinoid-related compounds. Path-analysis was performed to examine the association between predictive variables and MVPA. Results: Obese groups showed lower MVPA and dysfunctional temperament traits compared to healthy-weight controls. Plasma concentrations of 2-arachidonoylglyceryl (2-AG) were greater in obese groups. Path-analysis identified a direct effect between greater MVPA and low BMI (b = −0.13, p = .039) and high MVPA levels were associated with elevated anandamide (AEA) levels (b = 0.16, p = .049) and N-oleylethanolamide (OEA) levels (b = 0.22, p = .004), as well as high Novelty seeking (b = 0.18, p<.001) and low Harm avoidance (b = −0.16, p<.001). Conclusions: Obese individuals showed a distinct temperament profile and circulating endocannabinoids compared to controls. Temperament and endocannabinoids may act as moderators of the low MVPA in obesity.
Note: Reproducció del document publicat a:
It is part of: PLoS One, 2014, vol. 9, num. 8, p. 1-10
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ISSN: 1932-6203
Appears in Collections:Articles publicats en revistes (Ciències Clíniques)
Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))

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