Publications by authors named "Sylvia H Crixell"

Objectives: To compare diet quality of convenience samples of children 2-3 and 4-5 years attending 11 of 75 childcare centers in Hays County, Texas to a nationally representative sample, as part of a needs assessment to inform a childcare center-based intervention.

Methods: Parents completed 24-h recalls of their child's diet in 2014. Usual dietary intake of the regional and age-matched sample from the National Health and Nutrition Examination Survey (2011-2014) was estimated using the National Cancer Institute method.

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Purpose: To develop and validate an instrument to identify factors that influence what is ordered for catered events for employees at a large university.

Design: Themes derived from focus groups were used to develop a survey.

Setting: A large public university in central Texas.

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University employee wellness programs have potential to support positive changes in employee health, thereby improving productivity and mitigating the rise in health care costs. The purpose of this article is to describe a theory-driven approach to systematically planning, developing, and implementing a comprehensive university employee wellness program. Long-term program goals were to improve employee health, well-being, and productivity by focusing on decreasing sedentary behavior, increasing physical activity, improving dietary habits, and reducing stress.

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Objective: To assess the efficacy of an educational workshop for child care center staff to improve menus.

Methods: Staff from 18 centers attended a nutrition educational workshop that included an activity that compared center menus to MyPlate standards. Four weeks of menus collected before and after the workshop were imported into SuperTracker; the Food Details report produced menu data clustered by day and center.

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Objective: The purpose of this research was to conduct the first stages of a user-centered design of a smartphone app designed to improve health behaviors among participants in the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) in Texas.

Methods: Focus groups explored facilitators and barriers to health behaviors, current use of apps, and desired features in a WIC app.

Results: Facilitators to improve health behaviors included access to information, support from healthcare practitioners and family, and implementation of strategies.

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In 2009, WIC began issuing revised food packages with the intent of improving dietary practices such as breastfeeding, delaying the introduction of complementary foods until about 6 months, limiting juice intake, and increasing intake of fruits, vegetables, whole grains, and baby food meats as appropriate for age. This observational study investigated whether dietary intake and feeding practices of a sample of majority-Hispanic infants and toddlers participating in a WIC clinic in south central Texas improved after the package changes. Feeding practices data and 24-h recalls were collected during telephone interviews with 84 caregivers of infants (4-12 months) and toddlers (1-2 years) in 2009 before the package change and with 112 caregivers in 2011 after the package change.

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Background: Approximately 32% of US children are overweight or obese. Restaurant and fast food meals contribute 18% of daily calories for children and adolescents aged 2 to 18 years. Changing children's menus may improve their diets.

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Objective: To assess nutrient intakes after the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) package changes within an at-risk, majority Hispanic population of WIC infants and toddlers in Central Texas.

Methods: For this cross-sectional observational study, Nutrition Data System for Research was used to collect 24-hour recalls of infants and toddlers from a sample of caregivers in 2009 and 2011. Usual nutrient intakes were estimated and compared with Dietary Reference Intakes using the National Cancer Institute method.

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Because of the well-documented linear relationship between heart rate and oxygen consumption (VO2), heart rate is commonly used to estimate energy expenditure during exercise. However, previous research suggests that heart rate increases without a concomitant rise in VO2 when arm movements are added to exercise. If so, this could impact the accuracy of heart rate monitors in estimating energy expenditure during combined arm and leg exercise.

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People of all ages and fitness levels participate regularly in aerobic-dance bench stepping (ADBS) to increase fitness and control body weight. Any reasonable method for enhancing the experience or effectiveness of ADBS would be beneficial. This study examined the acute effects of a single dose of caffeine on physiological responses during ADBS in women.

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Although the effects of caffeine ingestion on athletic performance in men have been studied extensively, there is limited previous research examining caffeine's effects on women of average fitness levels participating in common modes of physical activity. The purpose of this study was to determine the effect of 2 levels of caffeine dosage on the metabolic and cardiorespiratory responses to treadmill walking in women. Subjects were 20 women (19-28 years of age) of average fitness, not habituated to caffeine.

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Caffeine has been shown to improve sprint time, anaerobic power, and reaction time, all integral aspects of agility. The purpose of this study was to determine whether an acute caffeine dose would enhance agility and anaerobic power. Sixteen subjects participated in a randomized, double-blind experiment and performed the proagility run and the 30-second Wingate test 60 minutes after ingestion of caffeine (6 mg.

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