Matching Items (3)
Description
The period of time between birth and 24 months of age is a sensitive period for infant growth, and adequate nutrition is vitally important. In this study, 150 Mexican-American mother-and-child pairs (N = 300) were periodically surveyed over the course of 36 months for demographics, financial status, and feeding practices to understand the feeding methods of Mexican-American families and any relations they may have to the weight and growth of developing infants. Results found that formula feeding had higher rates of usage and duration than breastfeeding, while solid foods were largely introduced at the recommended ages. At one year of age, the infants were predisposed towards overweight and obesity with a high maternal BMI, suggesting that breastfeeding practices were not fully utilized. However, the data did not differentiate between formula and breast milk when both were used at any specific age, making it difficult to determine how long infants were exclusively breastfed and how that would impact their growth.
ContributorsCorsi, Marisa Kalani Nicole (Author) / Reifsnider, Elizabeth (Thesis director) / Thatcher, Craig (Committee member) / Arizona State University. College of Nursing & Healthcare Innovation (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Craniofacial morphology in primates can vary on the basis of their diet because foods are often disparate in the amount and duration of force required to break them down. Therefore diet has the potential to exercise considerable selective pressure on the morphology of the masticatory system. The zygomatic arch is a known site of relatively high masticatory strain and yet the relationship between arch form and load type is relatively unknown in primates. While the relative position and robusticity of the arch is considered a key indicator of craniofacial adaptations to a mechanically challenging diet, and central to efforts to infer diet in past species, the relationships between morphology and diet type in this feature are not well established.
This study tested hypotheses using two diet categorizations: total consumption percent and food material properties (FMPs). The first hypothesis that cortical bone area (CA) and section moduli (bone strength) are positively correlated with masticatory loading tests whether CA and moduli measures were greatest anteriorly and decreased posteriorly along the arch. The results found these measures adhered to this predicted pattern in the majority of taxa. The second hypothesis examines sutural complexity in the zygomaticotemporal suture as a function of dietary loading differences by calculating fractal dimensions as indices of complexity. No predictable pattern was found linking sutural complexity and diet in this primate sample, though hard object consumers possessed the most complex sutures. Lastly, cross-sectional geometric properties were measured to investigate whether bending and torsional resistance and cross-sectional shape are related to differences in masticatory loading. The highest measures of mechanical resistance tracked with areas of greatest strain in the majority of taxa. Cross-sectional shape differences do appear to reflect dietary differences. FMPs were not correlated with cross-sectional variables, however pairwise comparisons suggest taxa that ingest foods of greater stiffness experience relatively larger measures of bending and torsional resistance. The current study reveals that internal and external morphological factors vary across the arch and in conjunction with diet in primates. These findings underscore the importance of incorporating these mechanical differences in models of zygomatic arch mechanical behavior and primate craniofacial biomechanics.
This study tested hypotheses using two diet categorizations: total consumption percent and food material properties (FMPs). The first hypothesis that cortical bone area (CA) and section moduli (bone strength) are positively correlated with masticatory loading tests whether CA and moduli measures were greatest anteriorly and decreased posteriorly along the arch. The results found these measures adhered to this predicted pattern in the majority of taxa. The second hypothesis examines sutural complexity in the zygomaticotemporal suture as a function of dietary loading differences by calculating fractal dimensions as indices of complexity. No predictable pattern was found linking sutural complexity and diet in this primate sample, though hard object consumers possessed the most complex sutures. Lastly, cross-sectional geometric properties were measured to investigate whether bending and torsional resistance and cross-sectional shape are related to differences in masticatory loading. The highest measures of mechanical resistance tracked with areas of greatest strain in the majority of taxa. Cross-sectional shape differences do appear to reflect dietary differences. FMPs were not correlated with cross-sectional variables, however pairwise comparisons suggest taxa that ingest foods of greater stiffness experience relatively larger measures of bending and torsional resistance. The current study reveals that internal and external morphological factors vary across the arch and in conjunction with diet in primates. These findings underscore the importance of incorporating these mechanical differences in models of zygomatic arch mechanical behavior and primate craniofacial biomechanics.
ContributorsEdmonds, Hallie Margaret (Author) / Reed, Kaye (Thesis advisor) / Schwartz, Gary (Committee member) / Vinyard, Chris (Committee member) / Arizona State University (Publisher)
Created2017
Description
Background: People with diabetes are at greater risk for comorbid cardiovascular disease, end stage organ damage, disability, and early death. There is substantial evidence that individualizing self-care education, such as eating a healthy diet, greatly improves diabetes management.
Objective: The purpose of this paper is to review the outcomes of a diabetes education program offered to underserved women in the Southwestern United States.
Methods: Four weekly nutrition classes were individualized and taught at a nonprofit organization in the southwest United States. Behavior change was measured using the Summary of Diabetes Self-Care Activities (SDSCA) tool. Classes were advertised via the center’s monthly class calendar and fliers. A total of nine participants (N=9) came to every class and took the SDSCA survey before and after class instruction.
Results: Descriptive statistics and two 2-tailed t-tests with the critical value set at p<0.05 were used for data analysis. The participants were Hispanic women, most between the ages of 40-49, and had an income between $0-14,000. The mean difference between the variables of both general diet and specific diet pre and post-tests were significantly different from zero. The assumptions of normality and homogeneity were met. The results of both two-tailed paired sample t-tests were significant suggesting the means of general and specific diet pre-tests were significantly lower than the means of the general and specific diet post-tests.
Discussion: The assumptions of normality and homogeneity were met and the results were significant. The pre-intervention scores for both categories were statistically significantly lower than the post-intervention scores for both categories. Thus, the desired outcome of helping clients within the organization modify, adapt, or change self-care behaviors related to diet was met.
ContributorsGandee, Marisol (Author) / Chiffelle, Rochelle (Thesis advisor) / Arizona State University. College of Nursing & Healthcare Innovation (Contributor)
Created2022-04-26