Olivia M. Douglass

Reducing Cardiovascular Risk Factors in Postmenopausal Women through a Lifestyle Change Intervention

BACKGROUND The impact of a 6-month lifestyle change intervention on cardiovascular risk factors in obese, sedentary, postmenopausal women was examined. A secondary aim of this investigation was to determine whether the addition of self-control skills training to an empirically supported lifestyle change intervention would result in greater cardiovascular risk reduction. METHODS Forty-four women were randomly assigned to receive either a lifestyle change or a lifestyle change with self-control skills intervention. Pretreatment and posttreatment weight loss, body composition, physical activity, cardiorespiratory fitness, diet, blood pressure (BP), blood lipids, and psychosocial functioning were assessed. Also, at 1-year posttreatment, weight loss, body composition, self-reported physical activity, and psychosocial functioning were assessed. RESULTS The women significantly increased their physical activity (+39.6%) and cardiorespiratory fitness (+13.5%) and reduced their body weight (-6.5%), fat mass (-7.4%), body fat (-2.4%), BP (SBP -6.2%, DBP -9.2%), total cholesterol (-7.4%), triglycerides (-16.5%), and low-density lipoprotein (LDL) cholesterol (9.1%) and improved their diet (p < 0.05). At the 1-year follow-up, women had regained approximately 63% of their posttreatment weight loss (p < 0.05), but had maintained their previous increases in physical activity. Additionally, there were no significant changes in fat free mass, body fat, anxiety, or depression between the end of treatment and 1-year posttreatment. The addition of self-control skills training did not significantly improve cardiovascular risk reduction. CONCLUSIONS Lifestyle change interventions may be an effective means for reducing cardiovascular risk in obese, sedentary, postmenopausal women. However, greater attention should be devoted to the maintenance of these positive lifestyle changes.

An Ecological Momentary Assessment of Relapse Crises in Dieting.

Much of the research on relapse crises in dieting has focused on isolated lapse events and relied heavily on retrospective self-report data. The present study sought to overcome these limitations by using ecological momentary assessment (EMA) techniques to examine situations of dietary temptation and lapse with a sample of obese, formerly sedentary, postmenopausal women (N = 37) during the final week of a weight-loss intervention. Mood was associated with reports of dietary lapse. Abstinence-violation effects were more strongly associated with dietary lapses than temptations. Finally, coping responses distinguished dietary temptations from lapses. Education on the factors associated with relapse crises in dieting may be imperative for weight loss success and maintenance.

The early identification of poor treatment outcome in a women's weight loss program.

Research examining factors associated with program attrition or failure to lose weight during active treatment has yielded mixed findings. The goal of the current investigation was to confirm and extend prior research on the predictors and correlates of attrition and failure to lose weight during treatment. This investigation examined whether baseline characteristics, early weight loss, attendance, weight-related quality of life, confidence and difficulties with eating and exercise, and diet-related thoughts and feelings during the final week of treatment were associated with percentage change in body weight. Forty-four, obese, sedentary, postmenopausal women were recruited to participate in a 24-session weight loss intervention. Poor treatment outcome (i.e., percentage change in body weight) was significantly associated with several baseline characteristics including higher body mass index (BMI), greater fat and lower carbohydrate consumption, poor body image, and greater expectations for program success. Poor treatment outcome was also significantly associated with poor program attendance, unsatisfactory early weight loss, unsatisfactory improvements in weight-related quality of life, and lower self-control and self-confidence. By the end of active treatment, women with poor treatment outcome evidenced significantly higher levels of guilt and feelings of failure. The need for early identification and intervention with participants at risk for treatment failure is discussed.

Can social desirability interfere with success in a behavioral weight loss program

Social desirability is an individual difference characteristic that extends beyond biased responding to questionnaires. Social desirability has the potential to negatively impact treatment outcome including weight loss. This study examines the association between social desirability and percent body weight loss in thirty-six obese participants completing a behavioral weight loss program (BWLP). At baseline, higher social desirability was associated with: (1) greater reported weight control competence and weight loss self-efficacy, (2) the reported consumption of fewer calories, and (3) fewer reported dietary lapses and more positive attitudes toward their diet as recorded in lapse diaries. Higher social desirability was significantly associated with less weight lost at the end of the 6-month intervention. Weight control competence, self-efficacy, and abstinence violation effects mediated the social desirability and weight loss association. Individuals high in social desirability may overestimate their ability to succeed in a BWLP and may have difficulties accurately self-monitoring diet-related behaviors, thereby contributing to a poor weight loss treatment outcome.

NEWS ABOUT MURDER IN AN AFRICAN AMERICAN NEWSPAPER: Effects of Relative Frequency and Race and Gender Typifications

Previous scholarly research on selection bias in news about murder indicates that race and gender stereotypes and, to a much lesser extent, the relative frequency of particular murders explain why some homicides are made into news and others are not. However, previous research has directed nearly exclusive attention to white newspapers. The present research remedies this omission by directing attention to the factors that shape selection bias in news about murder in a big-city African American newspaper. The results indicate that the relative frequency dimension of newsworthiness is a weak and inconsistent explanation of selection bias in news about murder in the black newspaper examined. Race, however, has profoundly different effects in white and African American newspapers. Whereas white newspapers use long-standing race stereotypes to filter news about murder, the data from the African American newspaper signal a firm rejection of the black image in the white mind (Entman and Rojecki 2000). Newspaper images of women and men are another matter. In both black and white newspapers, gender stereotypes uniformly filter news about murder and fundamentally distort gender effects. The implications of these findings are discussed including the clear need and ample scholarly room for replicative analyses of news about murder in other African American newspapers, with a keen eye on both “raced ways of seeing” (Hunt 1999, pp. 181–215) and gendered ways of seeing.

The association between emotional upset and cardiac arrhythmia during daily life.

Ventricular arrhythmia exhibits considerable within-subject variability that cannot be attributed to clinical status alone. This investigation examined the extent to which cardiac arrhythmia was associated with psychological and physical factors assessed during the hour preceding arrhythmic or nonarrhythmic activity. Approximately twice hourly, 46 patients randomly completed a diary assessing mood and physical symptoms during 24-hr electrocardiographic monitoring. Greater negative emotion was associated with increased arrhythmia. Additionally, greater negative emotion was significantly associated with increased arrhythmia among participants in a low left ventricular ejection fraction group (LVEF). However, this relationship between negative emotion and arrhythmia was not observed among higher LVEF participants. These findings contribute to a larger body of evidence suggesting that negative moods may exacerbate cardiac conditions.