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Variation in structural geometry is present in adulthood, but when this variation arises and what influences this variation prior to adulthood remains poorly understood. Ethnicity is commonly the focus of research of skeletal integrity and appears to explain some of the variation in quantification of bone tissue. However, why ethnicity explains variation in skeletal integrity is unclear.Here we examine...
In this paper we describe an image segmentation method for segmenting food items in images used for dietary assessment. Dietary assessment methods used to determine the foods and beverages consumed at a meal are essential for understanding the link between diet and health. Snakes, or active contours, are used extensively to locate object boundaries and segment images. Experimental results using classical...
Traditional dietary assessment methods, consisting of written and orally reported methods, are not widely acceptable or feasible for everyday monitoring. The development of built-in cameras for mobile devices provides a new way of collecting dietary information by acquiring images of foods and beverages. The ability of image analysis techniques to automatically segment and identify food items from...
Poor diet is one of the key determinants of an individual's risk of developing chronic diseases. Assessing what people eat is fundamental to establishing the link between diet and disease. Food records are considered the best approach for assessing energy intake however paper-based food recording is cumbersome and often inaccurate. Researchers have begun to explore how mobile devices can be used to...
The objective of this study was to determine the effect of fortification on dietary folate intake in a sample of rural women. The 289 subjects were recruited at 2 community health screenings. Most were white (88%), college educated (51%), and middle income (60% with incomes $30K+). Average age was 47.7 years. Dietary assessment data were collected with a quantitative food frequency (Block) using the...
The Youth Cooking Schools (YCS) have demonstrated that hands-on learning during summer for 8-12 year olds can significantly increase their nutrition knowledge and behaviors (Top Clin Nutr 1999; 14:48-59). Despite the YCS success, program leaders were concerned with addressing communities not previously reached primarily due to fiscal constraints. To increase the sphere of influence of YCS, program...
Stages of change models provide one type of theoretical framework to explain health behaviors and predict which individuals are most likely to successfully make behavior changes. These models have been applied to fat, fruits and vegetables, and fiber intakes. Application to other dietary components has not been explored. The purpose of this study was to examine stage of change with regard to dietary...
Many surveys and epidemiological studies largely rely on self-reported height and weight in data collection. Obesity and overweight are of public concern due to their relation to several chronic diseases. Since attitudes toward body weight change over time, it is important to continually assess the validity of using self-reported weights and heights. Relatively few studies have examined the accuracy...
Dietetic students must have a foundation of computer productivity skills to effectively function in the 21st century. The development of computer applications for every aspect of food and nutrition services is available and has improved dramatically the cost-effectiveness of food and nutrition services. The purpose of this study was to determine the extent that computer technology and applications...
Bioelectrical impedance analysis (BIA) is an accepted, simple, non-invasive method for estimating body composition. Adolescents deal with concerns of body weight and body image on a daily basis. Addressing these concerns can provide educators with a teachable moment that may spark interest to enter the profession of dietetics. Data show that incorporating hands-on experiences into the classroom promotes...
Body composition is an important factor in determining the nutritional status of individuals and populations. Body mass index (BMI), a measure of weight independent of height, is commonly used to assess body composition in populations. Data from the Framingham cohort have shown that mean body mass index does not change across decades of age (Am J Public Health 1995; 85:726-8). Whereas, the proportion...
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