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Full-Text Articles in Life Sciences

Vitamin D Status And Bone Mineral Density In Female Collegiate Dancers And Cheerleaders, Tara Sue Kenny Dec 2015

Vitamin D Status And Bone Mineral Density In Female Collegiate Dancers And Cheerleaders, Tara Sue Kenny

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction: An athlete’s bone mineral density reflects their cumulative history of energy availability, physical activity, genetic predisposition for bone health, and menstrual status, as well as nutritional, behavioral, and environmental factors.

Purpose: To determine if bone mineral density (BMD) and nutritional factors in bone health are different in two groups of female athletes who have comparable body size/weight requirements, but who engage in qualitatively different training regimens.

Methods: Participants were female collegiate athletes who were members of the UNLV Dance team (n=10) or Cheer team (n=9), ages 18-22. Participants vitamin D status was assessed by obtaining a finger prick sample …


Television Consumption And Child Obesity: Linking Children's Contemporary Television Use, Physical Activity, And Advertising To Putnam's Displacement Hypothesis, Brittany L. Altamirano Dec 2015

Television Consumption And Child Obesity: Linking Children's Contemporary Television Use, Physical Activity, And Advertising To Putnam's Displacement Hypothesis, Brittany L. Altamirano

UNLV Theses, Dissertations, Professional Papers, and Capstones

This study observed the relationship between television consumption and child obesity through the theoretical construct of Putnam’s displacement hypothesis. It did so by updating the previous research through the investigation of the displacement of both physical activity and advertisements on contemporary television platforms. The inclusion of Putnam’s displacement hypothesis was to provide a foundational framework, not found in previous literature, to study two important paradigms that were represented in previous research: 1) the displacement of physical activity; and 2) the displacement of traditional advertisement exposure.

Several trends became apparent within previous literature. Previous literature did not include an explicitly stated …


Understanding Perceptions Of Genetically Modified Food Among Natural Food Shoppers In Southern Nevada, Christian Murua-Aceves May 2015

Understanding Perceptions Of Genetically Modified Food Among Natural Food Shoppers In Southern Nevada, Christian Murua-Aceves

UNLV Theses, Dissertations, Professional Papers, and Capstones

Today, 85% of corn, 93% of soybeans, and 88% of cotton in the U.S. are genetically modified (GM). Using laboratory methods, genes from one species, such as a plant, can be transferred to an unrelated species, such as an animal. Genetically modified crops may lead to higher yields, have improved food quality, texture, and nutritional value, and have an increased shelf life.

Despite these promising benefits, the potential health risks relating to the consumption of GM food remain inadequately assessed. Genetically modified food is not subjected to rigorous safety testing, such as epidemiologic studies, to identify potential health risks. Two …


Impact Of Menu Designs And Personal Dietary Behaviors On Young Millennials' Restaurant Menu Choices, Yuan Tian May 2015

Impact Of Menu Designs And Personal Dietary Behaviors On Young Millennials' Restaurant Menu Choices, Yuan Tian

UNLV Theses, Dissertations, Professional Papers, and Capstones

The global prevalence of obesity has more than doubled since 1980. In response to this health crisis, the U.S. Food and Drug Administration finalized the Menu Calorie Labeling Rule in 2014. It requires that food service chains post Calorie information next to all food items on menus. Young Millennials aged 18-24 reportedly have poor dietary habits, which contributes to obesity rates. This on-line study surveyed 505 young Millennials to evaluate the relationship between young Millennials’ Calorie choices on restaurant menus and various factors, including menu design, personal dietary behaviors, and demographic characteristics. The survey data was analyzed using logistic regression. …