Guadalupe Ayala

Dr. Guadalupe Ayala


Research Focus & Metrics

Academic Career Length

26Years (2001-Present)

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

Representative Publications

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1 August 2008 in Journal of the American Dietetic Association
Verified
Journal Article
Closed access
GAGuadalupe Ayala
Guadalupe Ayala
BBBarbara Baquero
Barbara Baquero
SKSylvia Klinger
Sylvia Klinger

1 January 2007 in International Journal of Behavioral Nutrition and Physical Activity
Verified
Journal Article
Open access
IOIndia J Ornelas
India J Ornelas
KPKrista M Perreira
Krista M Perreira
GAGuadalupe Ayala
Guadalupe Ayala
Physical inactivity is increasing among adolescents in the U.S., especially among girls. Despite growing evidence that parents are an important influence on adolescent health, few longitudinal studies have explored the causal relationship between parental influence and physical activity. This study examines how the relationships between parental influences and adolescent physical activity differ by gender and tests whether these relationships are mediated by adolescents' self-esteem and depression. Data are from the National Longitudinal Study of Adolescent Health. The sample includes 13,246 youth, grades 7 to 12, interviewed in 1995 and again 1 year later. Logit models were used to evaluate parental influences on achieving five or more bouts of moderate to vigorous physical activity per week [MVPA] and whether the relationship between parental influence and MVPA was mediated by adolescents' level of self-esteem and depression. Family cohesion, parent-child communication and parental engagement positively predicted MVPA for both genders one year later (odds ratios and 95% confidence intervals for females, 1.09 [1.05–1.12], 1.13 [1.07–1.19], 1.25 [1.17–1.33] and males, 1.08 [1.04–1.11], 1.14 [1.07–1.23], 1.23 [1.14–1.33], respectively); however, parental monitoring did not (odds ratio and confidence intervals for females and males, 1.02 [.97–1.07]). For both females and males, self-esteem mediated the relationship between parental influence and physical activity. Depressive symptoms were only a mediator among males. Females reported higher levels of parent-child communication and lower family cohesion compared with males. There were no gender differences in levels of parental monitoring and engagement. Females had significantly lower levels of self-esteem and higher levels of depressive symptoms than males. Strategies to promote physical activity among adolescents should focus on increasing levels of family cohesion, parental engagement, parent-child communication and adolescent self-esteem.

5 July 2010 in Health Education Research
Verified
Journal Article
Open access
PDF file
GAGuadalupe Ayala
Guadalupe Ayala
LVLara Vaz
Lara Vaz
JEJo Anne Earp
Jo Anne Earp
JEJohn P. Elder
John P. Elder
ACAndrea Cherrington
Andrea Cherrington
The objective of this study was to examine lay health advisor (LHA) programs designed to promote health among US Latinos and the extent to which educator-only versus educator-plus-bridge programs differed in designs and outcomes achieved. Two independent coders reviewed 128 published articles on LHAs yielding information at two levels: (i) study design and participant and LHA characteristics from 61 studies that broadly compared educator-only versus educator-plus-bridge programs and (ii) implementation features and outcomes from 17 randomized controlled trials or quasi-experimental studies with outcome data. LHA programs have been widely used with Latinos in certain US regions; our findings indicate that LHAs are effective intervention agents. We identified differences between educator-only and educator-plus-bridge LHA programs, although the small number of educator-plus-bridge programs with outcome data limited comparisons. Major gaps remain in research targeting Latino subgroups other than Mexican immigrants/Mexican Americans. Sufficient research has evaluated LHA programs among Latinos on their ability to achieve health behavior and/or health status changes. In the future, more of a focus on organizational and policy changes is warranted. Questions remain about diversity in LHAs’ characteristics and roles, which influence not only outcomes but also program sustainability and dissemination.

1 February 2009 in Appetite
Verified
Journal Article
Closed access
SLSandra E. Larios
Sandra E. Larios
GAGuadalupe Ayala
Guadalupe Ayala
EAElva M. Arredondo
Elva M. Arredondo
BBBarbara Baquero
Barbara Baquero
JEJohn P. Elder
John P. Elder

4 January 2012 in Annals of Behavioral Medicine
Verified
Journal Article
Closed access
PDF file
NCNoe C. Crespo
Noe C. Crespo
JEJohn P. Elder
John P. Elder
GAGuadalupe Ayala
Guadalupe Ayala
DSDonald J. Slymen
Donald J. Slymen
NCNadia R. Campbell
Nadia R. Campbell
EAElva M. Arredondo
Elva M. Arredondo
Background. Community-based interventions are needed to reduce the burden of childhood obesity.Purpose. To evaluate the impact of a multi-level promot

1 May 2008 in Obesity
Verified
Journal Article
Open access
PDF file
GAGuadalupe Ayala
Guadalupe Ayala
MRMorgan Rogers
Morgan Rogers
EAElva M. Arredondo
Elva M. Arredondo
NCNadia R. Campbell
Nadia R. Campbell
BBBarbara Baquero
Barbara Baquero
JEJohn P. Elder
John P. Elder
Objective: This study examined sociodemographic and cultural determinants of away‐from‐home food consumption in two contexts and the influence of frequency of away‐from‐home food consumption on children's dietary intake and parent and child weight status.Methods and Procedures: Parents of children (N = 708) in grades K‐2 were recruited from 13 elementary schools in Southern California. Parents were asked through a questionnaire the frequency with which they eat meals away from home and the restaurant they frequented most often. The height and weight of the parents and their children were measured to calculate BMI.Results: Consuming foods at least once a week from relatives/neighbors/friends (RNF) homes was associated with children's dietary intake and children's risk for obesity. For example, children of parents with weekly or greater RNF food consumption drank more sugar‐sweetened beverages. Parents of families who ate at restaurants at least weekly reported that their children consumed more sugar‐sweetened beverages, more sweet/savory snacks, and less water compared with families who did not frequent restaurants this often. The type of restaurant visited did not affect diet intake or obesity. More acculturated families exhibited less healthy dietary behaviors than less acculturated families.Discussion: Restaurants remain an important setting for preventing child and adult obesity, but other settings outside the home need to be considered in future intervention research. This may especially involve eating in the homes of RNF.