Macarena Valladares

Dr. Macarena Valladares


Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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10 November 2015 in Journal of Physiology and Biochemistry
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Journal Article
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MVMacarena Valladares
Macarena Valladares
AOAna María Obregón
Ana María Obregón
Jean-Philippe ChaputJean-Philippe Chaput
Jean-Philippe Chaput

22 June 2016 in Journal of the American College of Nutrition
Verified
Journal Article
Closed access
MVMacarena Valladares
Macarena Valladares
EDElizabeth Durán
Elizabeth Durán
AMAlexis Matheus
Alexis Matheus
SASamuel Duran Aguero
Samuel Duran Aguero
AOAna María Obregón
Ana María Obregón
RRRodrigo Ramírez-Tagle
Rodrigo Ramírez-Tagle
Objective: To determine the association between academic performance and eating behavior in university students in Chile. Methods: A total of 680 college students, 409 (60%) women and 271 (40%) men, were randomly recruited and the mean age of the entire sample was 26. The Three-Factor Eating Questionnaire (TFEQ), which evaluates 3 dimensions of eating behavior—cognitive restriction (limiting own intake), uncontrolled eating (inclination to eat), and emotional eating (control of food intake in the context of negative emotions)—was used. Academic performance was measured by the grade point average (GPA) and was associated with eating behavior. Results: Women had significantly higher scores in the “emotional eating” dimension than men (p = 0.002). The eating behavior analysis showed that female students with higher GPAs (above 5.5) had statistically significantly lower uncontrolled eating scores (p = 0.03) and higher cognitive restriction scores (p = 0.05) than women with lower academic performance (below 5.5). There were no significant associations between eating behavior and academic performance in men. Conclusions: A positive association between eating behavior and academic performance was observed in female university students in Chile. Further studies are needed to explore the causes of this association and determine how to improve the nutritional habits of this population.

13 December 2017 in Chronobiology International
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Journal Article
Closed access
MVMacarena Valladares
Macarena Valladares
RRRodrigo Ramírez-Tagle
Rodrigo Ramírez-Tagle
AMAlexandra Muñoz
Alexandra Muñoz
AOAna María Obregón
Ana María Obregón
A chronotype is an individual trait that determines circadian rhythm (dark/light cycle) characteristics, associated with bedtime, waking, and other daily activities. A chronotype is classified as morning, intermediate, and evening. The objective is to associate chronotypes with academic performance in university students. A cross-sectional study was performed to evaluate the chronotype of university students (n = 703) by Horne-Ostberg questionnaire and associated with academic performance. The group with higher GPAs had higher chronotype scores (p = 0.002). Morning and intermediate chronotypes exhibited better academic performance; however, more studies are necessary to determine the underlying causes, which could influence cognitive aspects.

18 March 2021 in Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity
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Journal Article
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PDF file
ARAna Maria Obregon Rivas
Ana Maria Obregon Rivas
KOKarina Alejandra Oyarce
Karina Alejandra Oyarce
MGMaria Angeles Garcia-Robles
Maria Angeles Garcia-Robles
MVMacarena Valladares
Macarena Valladares
PPPaulina Pettinelli
Paulina Pettinelli
GGGary Goldfield
Gary Goldfield


1 September 2008 in Journal of Physiology and Biochemistry
Verified
Journal Article
Closed access
PDF file
JSJosé L. Santos
José L. Santos
PAP. Amador
P. Amador
MVMacarena Valladares
Macarena Valladares
CACecilia Albala
Cecilia Albala
JMJ. Alfredo Martinez
J. Alfredo Martinez
Amelia MartiAmelia Marti
Amelia Marti