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- Creators: Arizona State University
Description
Background: College freshmen are exposed to a variety of environmental and social factors that can alter changes to health habits and encourage weight gain. Weight-related conversations had with friends may be related to self-perception of weight and alterations to health behaviors, but this association has yet to be assessed in the college population.
Objective: This study aims to examine the relationship between friend advice about weight management, self-perception of weight, and alterations to weight change intentions, physical activity, and eating habits in college freshmen over time.
Methods: College freshmen from ASU with complete data for three time points (n=321) were found to be predominantly female (72.2%) and non-white (53.2%) with a mean age of 17.5±41. Complete data included responses for items included in analysis which were related to friend encouragement about weigh management, self-perception of weight, physical activity, eating behaviors, and weight change intentions. A longitudinal multivariate mediation analysis using negative binomial regression adjusted for sociodemographics and clustering by dorm was used to assess the relationship between 1) friend encouragement about weight management at time 1 and behavioral outcomes at time 3, 2) friend encouragement about weight management at time 1 and self-perception of weight at time 2, and 3) self-perception of weight at time 2 and behavioral outcomes at time 3.
Results: A small proportion of population perceived friend encouragement about weight loss (18.3%) and weight gain (14.4%) at time 1. Half the population (50.9%) had the self-perception of overweight at time 2. At time 3, more than half (54.3%) of individuals performed at least 60 minutes of MVPA and consumed at least ½ a serving of sugar-sweetened beverages each day, while nearly half (48.6%) consumed at least 2 servings of fruits and vegetables each day. Males perceived more friend encouragement to gain weight (27.4%; p<0.01), but more females had the self-perception of overweight (54%; p=0.04) and were attempting to lose weight (59.3%; p<0.01). Individuals who perceived friend encouragement to lose weight at time 1 had a 14.8% greater prevalence (p<0.001) of overweight perception of time two, and a 9.6% and 6.9%; decreased prevalence (p<0.001) of weight change and weight loss intentions (p=0.023) at time three respectively. Individuals who perceived friend encouragement to gain weight had a 34.9% decreased prevalence of (p<0.001) of self-perception of overweight at time 1. In individuals with the self-perception of overweight at time 2, there was a 18.1% increased prevalence (p<0.001) of consuming at least ½ a serving of sugar-sweetened beverages/day and an increased prevalence of 22.8% and 24.0% for weight change intentions and weight loss intentions at time 3 (p<0.001).
Conclusion: These findings suggest that there was not a mediation effect of self-perception of overweight in the relationship between friend encouragement about weight management and behavioral outcomes in the current sample. However, the increased prevalence of overweight perception in individuals who perceived friend encouragement about weight management may inform future interventions to focus on how weight-related conversations with friends is related to overweight perception. More research about the relationship between weight-related conversations had with friends, self-perception of weight, and health behaviors is needed to confirm these findings.
Objective: This study aims to examine the relationship between friend advice about weight management, self-perception of weight, and alterations to weight change intentions, physical activity, and eating habits in college freshmen over time.
Methods: College freshmen from ASU with complete data for three time points (n=321) were found to be predominantly female (72.2%) and non-white (53.2%) with a mean age of 17.5±41. Complete data included responses for items included in analysis which were related to friend encouragement about weigh management, self-perception of weight, physical activity, eating behaviors, and weight change intentions. A longitudinal multivariate mediation analysis using negative binomial regression adjusted for sociodemographics and clustering by dorm was used to assess the relationship between 1) friend encouragement about weight management at time 1 and behavioral outcomes at time 3, 2) friend encouragement about weight management at time 1 and self-perception of weight at time 2, and 3) self-perception of weight at time 2 and behavioral outcomes at time 3.
Results: A small proportion of population perceived friend encouragement about weight loss (18.3%) and weight gain (14.4%) at time 1. Half the population (50.9%) had the self-perception of overweight at time 2. At time 3, more than half (54.3%) of individuals performed at least 60 minutes of MVPA and consumed at least ½ a serving of sugar-sweetened beverages each day, while nearly half (48.6%) consumed at least 2 servings of fruits and vegetables each day. Males perceived more friend encouragement to gain weight (27.4%; p<0.01), but more females had the self-perception of overweight (54%; p=0.04) and were attempting to lose weight (59.3%; p<0.01). Individuals who perceived friend encouragement to lose weight at time 1 had a 14.8% greater prevalence (p<0.001) of overweight perception of time two, and a 9.6% and 6.9%; decreased prevalence (p<0.001) of weight change and weight loss intentions (p=0.023) at time three respectively. Individuals who perceived friend encouragement to gain weight had a 34.9% decreased prevalence of (p<0.001) of self-perception of overweight at time 1. In individuals with the self-perception of overweight at time 2, there was a 18.1% increased prevalence (p<0.001) of consuming at least ½ a serving of sugar-sweetened beverages/day and an increased prevalence of 22.8% and 24.0% for weight change intentions and weight loss intentions at time 3 (p<0.001).
Conclusion: These findings suggest that there was not a mediation effect of self-perception of overweight in the relationship between friend encouragement about weight management and behavioral outcomes in the current sample. However, the increased prevalence of overweight perception in individuals who perceived friend encouragement about weight management may inform future interventions to focus on how weight-related conversations with friends is related to overweight perception. More research about the relationship between weight-related conversations had with friends, self-perception of weight, and health behaviors is needed to confirm these findings.
ContributorsThibodeau, Tristan (Author) / Bruening, Meg (Thesis advisor) / Ohri-Vachaspati, Punam (Committee member) / Huberty, Jennifer (Committee member) / Arizona State University (Publisher)
Created2016
Description
The relationship between stress and policing has long been established in literature. What is less clear, however, is what departments are doing to help officers deal with the stress that comes with the job. Looking at a small Southwestern police agency and using a modified version of Speilberger’s (1981) Police Stress Survey, the present study sought to examine stressors inherent to policing, as well as to identify departmental services that may be in place to help officers alleviate those stressors and whether or not police officers would choose to take part in the services that may be offered. The findings suggest that a shift in stress in policing is occurring with operational stressors being reported at higher levels than organizational stressors, contrary to previous research.
ContributorsPadilla, Kathleen (Author) / White, Michael (Thesis advisor) / Telep, Cody (Committee member) / Sweeten, Gary (Committee member) / Arizona State University (Publisher)
Created2016
Description
Obesity impairs skeletal muscle maintenance and regeneration, a condition that can progressively lead to muscle loss, but the mechanisms behind it are unknown. Muscle is primarily composed of multinucleated cells called myotubes which are derived by the fusion of mononucleated myocytes. A key mediator in this process is the cellular fusion protein syncytin-1. This led to the hypothesis that syncytin-1 could be decreased in the muscle of obese/insulin resistant individuals. In contrast, it was found that obese/insulin resistant subjects had higher syncytin-1 expression in the muscle compared to that of the lean subjects. Across the subjects, syncytin-1 correlated significantly with body mass index, percent body fat, blood glucose and HbA1c levels, insulin sensitivity and muscle protein fractional synthesis rate. The concentrations of specific plasma fatty acids, such as the saturated fatty acid (palmitate) and monounsaturated fatty acid (oleate) are known to be altered in obese/insulin resistant humans, and also to influence the protein synthesis in muscle. Therefore, it was evaluated that the effects of palmitate and oleate on syncytin-1 expression, as well as 4E-BP1 phosphorylation, a key mechanism regulating muscle protein synthesis in insulin stimulated C2C12 myotubes. The results showed that treatment with 20 nM insulin, 300 µM oleate, 300 µM oleate +20 nM insulin and 300 µM palmitate + 300 µM oleate elevated 4E-BP1 phosphorylation. At the same time, 20 nM insulin, 300 µM palmitate, 300 µM oleate + 20 nM insulin and 300 µM palmitate + 300 µM oleate elevated syncytin-1 expression. Insulin stimulated muscle syncytin-1 expression and 4E-BP1 phosphorylation, and this effect was comparable to that observed in the presence of oleate alone. However, the presence of palmitate + oleate diminished the stimulatory effect of insulin on muscle syncytin-1 expression and 4E-BP1 phosphorylation. These findings indicate oleate but not palmitate increased total 4E-BP1 phosphorylation regardless of insulin and the presence of palmitate in insulin mediated C2C12 cells. The presence of palmitate inhibited the upregulation of total 4EB-P1 phosphorylation. Palmitate but not oleate increased syncytin-1 expression in insulin mediated C2C12 myotubes. It is possible that chronic hyperinsulinemia in obesity and/or elevated levels of fatty acids such as palmitate in plasma could have contributed to syncytin-1 overexpression and decreased muscle protein fractional synthesis rate in obese/insulin resistant human muscle.
ContributorsRavichandran, Jayachandran (Author) / Katsanos, Christos (Thesis advisor) / Coletta, Dawn (Committee member) / Dickinson, Jared (Committee member) / Arizona State University (Publisher)
Created2017
Description
The life of Jean-Michel Basquiat is often misinterpreted in artistic discourse. From a social justice perspective, Basquiat's work is not merely art. Despite the symbolism and subject matter open for analysis, Basquiat articulated the self in relation to nuances of race, socio-economy, and historical scripts based upon real relations and conditions. Of the genre of Neo-Expressionism without a disciplined schooling in art, Jean-Michel is categorized as 'primitive' in style and form, labeled the "first black artist." Beyond the art world's possessive confines and according to post-colonial aesthetics, Jean-Michel articulates the existence of a learning self. With a pedagogical lens, a process of becoming an "artist" deepened Basquiat's expressions of self in relation to a “white” art world, which typically restricted the artist to specific categories and definitional parameters.
While recognition of the "artist" highlights the limitations of 'public' and 'self' in pedagogy, learning of the self through Neo-Expressionism is contingent upon articulating a situated existence among particular "publics," with regard to time and place. Variable dimensions of recognition create a fragmented self with transitional 'stages' and a series of acute shifts re-establish the definitional boundaries of art, definers, and ultimately the self and “Other”. These shifts continuously create new margins of the avant-garde and the self is redefined by art and discourse to sustain capital inflow, thereby replicating the colonial nature of capitalism with regard to communication, material and discovery, and “Other”. The process eschews a realized finality while expression as a relational communication of the situated persona redefines one's identity and demarcates a value of the self.
While recognition of the "artist" highlights the limitations of 'public' and 'self' in pedagogy, learning of the self through Neo-Expressionism is contingent upon articulating a situated existence among particular "publics," with regard to time and place. Variable dimensions of recognition create a fragmented self with transitional 'stages' and a series of acute shifts re-establish the definitional boundaries of art, definers, and ultimately the self and “Other”. These shifts continuously create new margins of the avant-garde and the self is redefined by art and discourse to sustain capital inflow, thereby replicating the colonial nature of capitalism with regard to communication, material and discovery, and “Other”. The process eschews a realized finality while expression as a relational communication of the situated persona redefines one's identity and demarcates a value of the self.
ContributorsDiffie, Dillon (Author) / Lauderdale, Pat (Thesis advisor) / Vicenti Carpio, Myla (Committee member) / Swadener, Beth Blue (Committee member) / Arizona State University (Publisher)
Created2017
Description
Daily life stressors and negative emotional experiences predict poor physical and psychological health. The stress response of the hypothalamic-pituitary-adrenal axis is a primary biological system through which stressful experiences impact health and well-being across development. Individuals differ in their capacity for self-regulation and utilize various coping strategies in response to stress. Everyday experiences and emotions are highly variable during adolescence, a time during which self-regulatory abilities may become particularly important for adapting to shifting social contexts. Many adolescents in the U.S. enter college after high school, a context characterized by new opportunities and challenges for self-regulation. Guided by biopsychosocial and daily process approaches, the current study explored everyday stress and negative affect (NA), cortisol reactivity, and self-regulation assessed at the momentary, daily, and trait level among a racially/ethnically and socioeconomically diverse sample of first-year college students (N = 71; Mage = 18.85; 23% male; 52% non-Hispanic White) who completed a modified ecological momentary assessment. It was expected that within-person increases in momentary stress level or NA would be associated with cortisol reactivity assessed in college students' naturalistic settings. It was predicted that these within-person associations would differ based on engagement coping responses assessed via momentary diary reports, by the range of engagement coping responses assessed via diary reports at the end of the day, and by higher trait levels of self-regulation assessed via standard self-report questionnaire. Within-person increases in momentary stress level were significantly associated with momentary elevations in cortisol only during moments characterized by greater than usual engagement coping efforts (i.e., within-person
increases). At a different level of analysis, within-person increases in momentary stress level were significantly associated with increases in cortisol only for those with low trait levels of coping efficacy and engagement coping. On average, within-person increases in momentary NA were significantly associated with cortisol reactivity. Tests of moderation revealed this momentary association was only significant for those with low trait levels of support-seeking coping.
increases). At a different level of analysis, within-person increases in momentary stress level were significantly associated with increases in cortisol only for those with low trait levels of coping efficacy and engagement coping. On average, within-person increases in momentary NA were significantly associated with cortisol reactivity. Tests of moderation revealed this momentary association was only significant for those with low trait levels of support-seeking coping.
ContributorsSladek, Michael Ronald (Author) / Doane, Leah D (Thesis advisor) / Eisenberg, Nancy (Committee member) / Luecken, Linda J. (Committee member) / Arizona State University (Publisher)
Created2015
Description
International adoption in the U.S. remains a viable option for families who wish to build or expand their families; however, it has not been without controversy. Past research has sought to understand the initial and long-term psychological adjustment and racial/ethnic identity development of international and transracial adoptees. Research shows that pre-adoption adversity may be linked to the development of behavior and emotional problems, and opponents assert that international adoption strips children of their culture. Emerging research has focused on cultural socialization practices and how international and transracial adoptive families acknowledge or reject ethnic and racial differences within the family. An area less understood is how international and transracial adoptees cope with racism, prejudice, racial discrimination, and stereotyping. This study explores, using qualitative methods, the ways in which international and transracial adoptees experience and cope with racism, prejudice, racial discrimination and/or stereotyping. The personal stories of ten adult Korean adoptees are highlighted with particular attention to how interactions with adoptive family members and peers influence adoptees’ identity development, how adoptees resolve conflicts in terms of “fitting in,” and how parental/familial influence mitigates the effects of racism and racial discrimination. The study concludes with a discussion on implications for social work practice.
ContributorsNguyen, Marijae Hsiao-ling (Author) / Ayón, Cecilia (Thesis advisor) / Jackson, Kelly (Committee member) / Zorita, Paz (Committee member) / Arizona State University (Publisher)
Created2015
Description
Research demonstrates that maladaptive eating (e.g., restriction, disinhibition) and persistent depressive symptoms often co-occur and may reinforce each other over time. However, little is known regarding the etiology of early maladaptive eating and depressive symptoms among Mexican American children and how cultural orientation impacts co-occurrence. This study aimed to map the emerging structure of maladaptive eating–depression symptom networks, identify early dysfunctional mechanisms (i.e., symptoms) that maintain network structure, and explore how cultural orientation influences mechanisms. The sample included 263 low-income Mexican American children, assessed at 6-, 7.5-, and 9-years-old via maternal report. Mothers completed surveys on child eating, depressive symptoms, and cultural orientation. Data was analyzed using regularized partial correlation, Ising, and mixed graphical network models. Results showed that maladaptive eating networks were invariant over time. Central maladaptive eating symptoms were related to food responsiveness. Depressive symptom and combined networks were not stable enough for interpretation. Sadness and thoughts of worthlessness/inferiority emerged as central depressive symptoms at age 9. No bridge symptoms or moderated effects were large enough for interpretation. This study is the first of its kind to examine associations between eating and depressive symptoms among Mexican American children using network analysis. Results provide etiological information on the structure of co-occurring eating and depressive symptoms across late childhood and provide direction towards optimal prevention targets among this group.
ContributorsHernandez, Juan Carlos (Author) / Perez, Marisol (Thesis advisor) / Luecken, Linda (Committee member) / Berkel, Cady (Committee member) / Cruz, Rick (Committee member) / Arizona State University (Publisher)
Created2024