Matching Items (14)
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- All Subjects: sleep
- All Subjects: Obesity
- Creators: School of Nutrition and Health Promotion
Description
Osteoporosis is a medical condition that leads to decreased bone mineral density, resulting in increased fracture risk.1 Research regarding the relationship between sleep and bone mass is limited and has primarily been studied in elderly adults. While this population is most affected by osteoporosis, adolescents are the most proactive population in terms of prevention. The purpose of this study was to evaluate the relationship between sleep efficiency and serum osteocalcin in college-aged individuals as a means of osteoporosis prevention. Thirty participants ages 18-25 years (22 females, 8 males) at Arizona State University were involved in this cross-sectional study. Data were collected during one week via self-recorded sleep diaries, quantitative ActiWatch, DEXA imaging, and serum blood draws to measure the bone biomarker osteocalcin. Three participants were excluded from the study as outliers. The median (IQR) for osteocalcin measured by ELISA was 11.6 (9.7, 14.5) ng/mL. The average sleep efficiency measured by actigraphy was 88.3% ± 3.0%. Regression models of sleep efficiency and osteocalcin concentration were not statistically significant. While the addition of covariates helped explain more of the variation in serum osteocalcin concentration, the results remained insignificant. There was a trend between osteocalcin and age, suggesting that as age increases, osteocalcin decreases. This was a limited study, and further investigation regarding the relationship between sleep efficiency and osteocalcin is warranted.
ContributorsMarsh, Courtney Nicole (Author) / Whisner, Corrie (Thesis director) / Mahmood, Tara (Committee member) / School of International Letters and Cultures (Contributor) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Background: The prevalence of childhood obesity has disproportionately affected Latino youth and can be seen with an increase incidence of Type 2 Diabetes. This increase in obesity can be attributed to physical inactivity. Increases in social support and self-efficacy are independently related to increases in physical activity. A lifestyle intervention can lead to increases in social support, self-efficacy and physical activity. Objective/Hypothesis: The objective of this study was to determine whether a 12-week lifestyle intervention could increase social support, self-efficacy and physical activity in obese Latino adolescents that participated in the intervention. It was hypothesized that adolescents that participated in the intervention would increase self-efficacy, social support from family and friends, and physical activity compared to their control counterparts. Study Design/Participants: In a randomized control trial, there were 125 Latino (n= 60 experimental group; n= 65 control group; mean age = 15.17 +- 1.65 Males n = 60; n = 65 females) participants included in this study. Participants were also required to have a BMI percentile >= 95th percentile for age and gender or BMI >= 30 kg/m2. Methods: The intervention, which was developed using the Social Cognitive Theory had components focusing on social support and self-efficacy and also consisted of nutrition education classes and physical activity sessions for 12 weeks. The psychosocial constructs of self-efficacy and social support were measured using the Adolescent Self-Efficacy for Diet and Activity Behaviors and Adolescent Social Support for Diet and Exercise Survey, respectively. Physical activity was assessed by the 3-day Physical Activity Recall. Results: We found significant increases in social support in family (p = 0.042) and vigorous physical activity (p = 0.001). There was also a significant difference between control and treatment group for moderate to vigorous physical activity after the intervention (p = 0.027). There were no changes in social support from friends or self-efficacy. Conclusion: We concluded that a 12-week lifestyle intervention did lead to changes in social support and physical activity behaviors. These changes could have been influenced by the intervention as they were measured these constructs pre/post intervention.
ContributorsRahman, Hanna (Author) / Shaibi, Gabriel (Thesis director) / Hoffner, Kristin (Committee member) / School of Nutrition and Health Promotion (Contributor) / School of Social and Behavioral Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
While there is extensive information available about organizations that receive donated organs for transplant, much less is known about those that accept tissue and whole bodies for medical education and research. Throughout the United States, nontransplant anatomical donation organizations exist within an ambiguous sector of the donation industry, unencumbered by federal regulations. Although these companies adhere to the Uniform Anatomical Gift Act, the lack of a single entity responsible for overseeing their operations has led to public skepticism and animosity among competing businesses. Legislation has the potential to legitimize the industry. For it to be successful, however, the intricacies of a complex market that deals directly with the movement of human remains and intangible issues of human integrity and morality, must be thoroughly understood.
ContributorsGlynn, Emily Sanders (Author) / Brian, Jennifer (Thesis director) / Fisher, Rebecca (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor) / Department of English (Contributor)
Created2015-05
Description
Background While extensive research has been conducted among college students consuming alcohol with energy drinks, there is limited research exploring how extracurricular activities could have an impact on energy drink consumption and sleep. Understanding the association between student involvement and the impact it could have on sleep and energy drink consumption among college freshmen is essential in promoting healthy behaviors while in college. Objectives The purpose of this study was to understand the relationship between student involvement, average hours of sleep, and predicted prevalence of energy drink and coffee consumption amongst college freshmen living in residence halls at a large, public university in the Southwest. Student involvement and fewer hours of sleep hypothesized to observe higher energy drink consumption. Methods This study was a secondary data analysis of the second wave of the longitudinal SPARC (Social impact of Physical Activity and nutRition in College) study assessing college freshmen (n=599; 70.6% female; 50.9% non-white) living on campus. Students were enrolled in this study during the 2015\u20142016 school year. Mutually adjusted generalized estimating equation (GEE) binomial models examined the relationship between involvement (academic clubs, sport clubs, honors, taking 16 or more credit hours, and having a job) and sleep with energy drink and coffee consumption, controlling for gender, race/ethnicity, Pell grant status, ever having tried alcohol, and clustering of students in residence halls. Results On average, students were enrolled in 15 credits, slept an average 8 hours per night, those who had a job worked 14 hours for pay per week, 35% reported consuming energy drinks in the past week, and about 29% of students reported coffee consumption. Males showed a higher predicted prevalence of energy drink consumption compared to females (p<0.001), where females showed a higher predicted prevalence of coffee consumption compared to males (<0.001); energy drink consumption was less prevalent amongst Hispanic students compared to white students (p=0.018), but more prevalent amongst black students compared to white students (p=0.002); no associations between race were found in predicted prevalence of coffee consumption. Average hours of sleep per night was inversely associated with energy drink consumption predicted prevalence (p<0.001). There was a lower predicted prevalence of energy drink and coffee consumption in honors student status (p<0.001) compared to non-honors students. Students taking 16 or more class credit hours showed a higher predicted prevalence in both energy drink (p=0.050) and coffee consumption (p=0.023) compared to students taking less than 16 class credit hours. Students involved in physically active clubs showed a greater predicted prevalence of coffee consumption (p<0.001) compared to students not in physically active clubs. There was no difference in the predicted prevalence in energy drink consumption amongst students involved in physically active clubs (p=0.710), non-physically active clubs (p=0.493), and having a job (p=0.146). Coffee consumption predicted prevalence showed no significant prevalence amongst students of different race and ethnicity [Black (p=0.507), Hispanic (p=103), Other (p=116)] as well as students involved in non-physically active (p=0.839) clubs and who had a paid job (p=0.088). Conclusion Associations observed between average hours of sleep, the different types of involvement of student activities, and energy drink and coffee consumption, were interesting in that a few findings were found to be contrary to the hypotheses. Future research should delve deeper into student involvement within honors programs to understand the contextual factors of why these students showed a significant inverse association in energy drink consumption. Contrary to hypothesis, sleep and energy drink consumption prevalence were indirectly related leading future research to examine and understand why students are consuming energy drinks since on average participants were meeting recommended sleep guidelines. Nutrition interventions are needed for the groups at consuming energy drinks and alcohol in combination due to the study finding increased predicted prevalence amongst these groups as well as the increased risky health behavior associated with the combination found in the literature. Support or Funding Information This study was supported by the NIH Common Fund from the Office of the Director and the Office of Behavioral and Social Sciences Research, grant number 1DP5OD017910-01 (PI: M. Bruening). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
ContributorsBender, Rebecca Leigh (Author) / Bruening, Meg (Thesis director) / McCoy, Maureen (Committee member) / Brennhofer, Stephanie (Committee member) / School of Sustainability (Contributor) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
Description
Problem: Overweight and obesity are global issues. There are several strategies for weight loss and maintenance as well as general lifestyle change for overall better health. The goal is to find an easy and convenient way for people to track their food intake, either for personal use and improvement, or to be used by professionals such as registered dietitians to gather data and help improve diet. Currently food journals, food frequency questionnaires and 24-hour recall are methods that are used by registered dietitians to get an idea of what is general diet is like from their patients or clients. It was proposed that pictures taken of the meal with a phone could be used as a method of recording food intake. It would be quick and extremely easy on the client; then everything from portion size, to type of food and toppings could be analyzed quickly and conveniently. If effective it could also give rise to the ability for foods to be analyzed immediately with the text or email of the picture. Methods: subjects already participating in a separate study where they were instructed to take pictures of their meals for a difference purpose were recruited. There recorded diet intake with phone pictures were able to be used from seven subjects. Subjects took a snapshot of their meals for 3 separate days and also logged on and completed a 24 hour recall with the ASA website. The pictures were analyzed and food intake, based off the pictures was entered in the program Food Processor to generate a nutritional report. The results from the ASA 24 hour recall, based on what the subject entered, were compared to the nutritional report, generated based on review of the pictures. Nutrient values that were compared include: total energy intake (calories), protein, carbohydrates, fat, vitamin C, calcium and fiber. This was done to test if the pictures could be used as a valid source. Results: It was found that there were several problems with using the pictures as a method of analyzing food intake. Out of the seven subjects the result of only one subject was close between the two methods. All other results of calculated nutrient intake varied significantly and it did not prove to be effective to use pictures to analyze food intake. Conclusions: food intake recorded by picture method may prove to be useful in the future, however there would need to be greater compliance and training on picturing food that can be accurately analyzed. Short written explanation of food type and cooking method etc. would be most beneficial to include with actual picture. Pictures of food intake may be useful in other professional areas but as of now are not useful to generate nutritional reports.
ContributorsLouden, Karina Arianne (Author) / Johnston, Carol (Thesis director) / Morse, Lisa (Committee member) / Appel, Christy (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor)
Created2013-05
Description
Many individuals are not following healthy lifestyles as evidenced by the high obesity rates and poor physical activity levels. Many do not know how to eat healthy and exercise effectively, especially given busy schedules and no time to cook or go to the gym. However, people do spend a significant amount of time on their mobile device using social media. This outlet can potentially be used to inspire and teach individuals how to cook healthy simple meals, or find motivation to get off the couch for some exercise. In this study, strategies were identified that would increase the comments, likes, and followers of the investigator's Instagrams, which were designed to motivate followers to live a healthier lifestyle. Initially, 462 posts were assessed retrospectively to determine how the number of likes and comments were influenced by hashtags, category of posts (nutrition, fitness, or inspiration), and/or type of app, PicPlayPost, Instaframe, and the updated Instagram. These results were used in a 1-month prospective study to increase likes and followers to the investigator's Instagrams. In the retrospective study, it was determined that hashtags influenced the number of comments and likes across the categories and that the PicPlayPost app increased the likes in all categories. Hence, for the prospective study, the investigator wrote 1 nutrition and 1 fitness post daily for 28 days using a minimum of 15 hashtags per post. In addition, 3 nutrition posts and 3 fitness posts per week used the PicPlayPost app. This posting strategy increased the number of likes per post by 100%, and the number of followers increased from 369 to 1082 in one month. Interestingly, the nutrition posts received 27% more likes than the fitness posts, and the PicPlayPost app increased comments by 134%. In conclusion, the use of hashtags, PicPlayPost, and Instaframe apps increased the likes and comments on social media. These strategies may increase audience's attention on a certain topic and be used to improve individuals' lifestyles.
ContributorsTomasso, Bernice Grace (Author) / Johnston, Carol (Thesis director) / Dixon, Kathy (Committee member) / Barrett, The Honors College (Contributor) / School of Nutrition and Health Promotion (Contributor)
Created2014-05
Description
In the United States, the prevalence of pediatric obesity has increased to 17% in the general population and even more so in the Hispanic pediatric population to 22.4%. These children are at a higher risk for associated comorbidities, including cardiovascular disease and insulin resistance. The purpose of the following study is to determine the effectiveness of the Nutrition and Health Awareness curriculum at reducing childhood obesity by evaluating alterations in the gut microbial composition, diet, and overall health of the students throughout the five-week program. Nutrition and Health Awareness (NHA) is a student organization that strives to reduce the prevalence of obesity, diabetes, and cardiovascular diseases, specifically in children, by providing active nutrition education services through peer mentoring in elementary schools and community programs. This study went through ASU's Institutional Review Board process and all forms were translated into Spanish. The control group maintained their normal routines and the experimental group received the 5 week NHA program and then continued with their normal routines. Anthropometric measures (Body Mass Index, waist-to-hip ratio, and blood pressure), diet measures (Hispanic food frequency questionnaire), fecal swabs, and content surveys were collected on weeks 0, 5, and 8. Contrary to expected, alpha diversity, kilocalorie intake, and macronutrient intake decreased as the study progressed for both the control and experimental groups. Anthropometric measurements were relatively stable. Though not statistically significant, the greatest difference in time points is between weeks 1 and 8. This decrease in alpha diversity and kilocalorie intake could be due to a change in environment since the children started school on week 8. Future implications of this study are that parental involvement is necessary for an effective, sustainable change in these children. More research in different settings is necessary to determine NHA's effectiveness
ContributorsPatel, Kapila Cristina (Author) / Krajmalnik-Brown, Rosa (Thesis director) / Whisner, Corrie (Committee member) / School of Nutrition and Health Promotion (Contributor) / School of Life Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2016-05
Description
This study was designed with the goal of measuring the effects of sleep deprivation on muscle function. Participants in this study consisted of 19 individuals, 11 of which were in the restricted group (age 251) and 8 were in the control group (age 231). Measurements of muscle function included isometric strength, isokinetic velocity, and muscle soreness. Isometric strength and isokinetic velocity were taken for knee extension using a dynamometer. Muscle soreness was measured via a 100mm likert visual analogue scale for the step-up and step-down movements with the effected leg. Measurements were taken at baseline, and 48 hours after the damaging bout of eccentric exercise following either 8 hours of sleep per night or 3 hours of sleep per night. Results show that there were no statistical differences between groups for either measurements of isometric strength, isokinetic velocity, or muscle soreness. Due to possible confounding factors, future research needs to be conducted in order to get a better understanding of the effects of sleep deprivation on muscle function.
ContributorsSalmeron-Been, Aaron James (Author) / Dickinson, Jared (Thesis director) / Youngstedt, Shawn (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Obesity is a rising problem in the country today, and countless efforts have been made to achieve long-term weight loss. Recent research indicates that through the manipulation of Brown Adipose Tissue (BAT) activity within the body, weight loss can be achieved. The goal of this experiment was to understand the effects of a high-fat diet (HFD) on BAT activity and diet-induced thermogenesis in cold-stressed rats. It was predicted that the HFD would stimulate BAT activity and this would then drive up thermogenic activity to promote weight loss. Diet-induced thermogenesis was predicted to increase during the HFD phase of this experiment as the body would require more energy to digest the more calorically dense food. Upon arrival at six weeks of age, the rats were started on a low-fat diet (LFD) ad libitum for three weeks. They were then transitioned into a HFD ad libitum for the next 8 weeks. Throughout the experiment, the rats were maintained in a cold-stressed environment at 22°C. It was determined that one of the rats was identified as obesity prone, while the other three rats were obesity resistant based on the rate of weight gain and caloric intake. Obesity can decrease metabolism in the body for many reasons, yet it was not seen in this experiment that the obesity prone rat demonstrated decreased metabolism in comparison to the others. Based on the differences seen in the reference temperatures and the BAT temperatures, it was determined that the BAT was active throughout both the LFD and HFD phases. However, the BAT did not rise significantly during the HFD period as expected. More research is indicated with a larger sample size to determine if BAT activity does continue to increase during a HFD as a result of diet-induced thermogenesis.
ContributorsLubold, Jessica Marie Sarah (Author) / Morse, Lisa (Thesis director) / Herman, Richard (Committee member) / School of Nutrition and Health Promotion (Contributor) / Barrett, The Honors College (Contributor)
Created2016-12
Description
Individuals with Down syndrome (DS) display significantly earlier symptoms of Alzheimer's disease (AD) beginning around age 35. Because AD-like symptoms tend to be ever present in those with DS, it is difficult to accurately evaluate those with DS for earlier onset of AD. It has been suggested that physical activity and sleep are potential measures to monitor for manifestations of early AD-like symptoms in people with DS. Our lab has previously shown remarkable improvements in physical activity, cognition, and motor control while using Assisted Cycle Therapy (ACT) for adolescents with DS, Parkinson's disease (PD), and stroke populations. This novel exercise intervention is suggested to mediate improvements in cerebral activation through upregulated neurogenesis, angiogenesis, and neuro-plastic mechanisms. Despite prior research, there remains to be limited studies behind these concepts in adults with DS and sleep, which is suspected to be an accurate metric for AD-like manifestations. Fifteen older adult participants with DS were assigned to one of two cycling interventions: ACT or VC. All participants were provided Fitbit HR devices for sleep and physical activity tracking. Only five adults had viable continuous collection of data for both sleep and physical activity. While none of our results reached conventional levels of significance, there were trends towards significance in the VC group for total steps taken and in the ACT group for sleep-onset latency (SOL). Individual cases of improvement were noted but it globally can be supported that Fitbit devices are not optimistic for adults with DS due to poor long-term compliance. It comes to no surprise to those involved with these groups that cooperativity tends to be low with long term interventions in research design. In spite of this significant barrier, Fitbit devices offer to be a reliable and inexpensive record keeper of physical activity and sleep. Future research should lean to investigate the viability of Fitbit devices within younger populations, the role of heart rate variability on sleep efficiency and sleep onset latency in DS, and utilize more extensive compliance reinforcement to obtain volume of data collection needed to establish significant measurements of physical activity and sleep in populations with DS.
ContributorsDietz, Matthew David (Author) / Ringenbach, Shannon (Thesis director) / Holzapfel, Simon (Committee member) / School of Nutrition and Health Promotion (Contributor) / School of Molecular Sciences (Contributor) / Dean, W.P. Carey School of Business (Contributor) / Barrett, The Honors College (Contributor)
Created2018-12