Effects of 8-Weeks Concurrent Strength and Aerobic Training on Body Composition, Physiological and Cognitive Performance in Older Adult Women

(1) Background: Despite plenty of evidence supporting the advantages of regular physical exercise amongst older women, it is not clear what the best methodology is to improve these parameters. Considering the growth of older population and aging process, this study analyses an 8-weeks concurrent training intervention; (2) Methods: A total of 48 older women participated in concurrent strength and aerobic exercises training intervention being used to know physical and cognitive improvements in older women through physical, physiological and vigilance tests; (3) Results: Significant differences were found in weight and body mass index (BMI) between pre-intervention and post-intervention and even better results, but non-significative, in maximum oxygen consumption (VO2max), total fat percentage and skeletal muscle mass. Additionally, we found cognitive improvements in vigilance (RT) related to executive functions. (4) Conclusions: An 8-weeks concurrent training program (strength and aerobic exercises) give another efficient possibility to obtain better physical, physiological and cognitive improvements in older women

ACCULTURATION AND POST-IMMIGRATION CHANGES IN OBESITY, PHYSICAL ACTIVITY, AND NUTRITION: COMPARING HISPANICS AND ASIANS IN THE WATERLOO REGION, ONTARIO, CANADA.

OBJECTIVES: The acculturation hypothesis speculates that as new immigrants get exposed to more obesogenic environments, they progressively acquire the unhealthy lifestyles of the host society, and their obesity risk gradually increases since time of arrival. However, the consistency of the presumed acculturation effect across immigrant groups and gender, and the reasons behind individual changes in lifestyle behaviors remain unclear. Thus, this study investigated the acculturation hypothesis in the Canadian context by comparing two foreign groups, Hispanics and East/Southeast Asians, which present contrasting post-settlement obesity patterns and behavioral trends. Methods: A 41-item questionnaire (including open-ended questions) was administered with 100 first-generation immigrants in the K-W Region to gather information on weight-relatedmeasures, acculturation levels, psychological stress, lifestyle behaviors, and perceived causes of changes in diet and physical activity. A logistic regression analysis was performed to estimate the likelihood of being overweight-obese, while interview transcripts were analyzed to identify response themes and explore causal relationships. RESULTS: Hispanics exhibited considerably higher body mass index levels and larger weight gains, and a nearly nine times higher overweight risk than East/Southeast Asians. Overweight risk was also higher for males and less-educated immigrants. Data collected shows that weight gains were larger for newcomers with high average psychological stress scores, and 38% of Hispanic participants mentioned either stress or depression as causes for their weight gains. The acculturation analysis revealed that East/Southeast Asians were significantly less integrated into Canadian society and more likely to maintain their traditional diets, while both groups reportedperceived-increased levels of recreational physical activity, which contradicts the belief of a linear uniform adoption of unhealthy lifestyle behaviors. DISCUSSION: Results support the notion that the impact of duration of residence does vary by ethnicity and gender. Future prevention efforts should focus on the foreign groups most likely to develop obesity, and pay particular attention to less-educated immigrants, who may be more likely to acquire unhealthy habits after settlement. Results also highlight the emergence of acculturative stress as a significant obesity-risk factor, and support the implementation of obesity preventive efforts that help immigrants manage post-settlement-related feelings of anxiety and depression through the inclusion of social integration strategies. In an increasingly diverse and multiethnic Canada, we expect the dissemination of the research findings to help recent and long-term immigrants to become more aware of obesity-relatedissues, and thus facilitate the adoption of healthier lifestyles after settlement in Canada

Nutritional status and socioeconomic change among Toba and Wichí populations of the Argentinean Chaco

The prevalence of overweight and obesity is growing at an accelerated pace in disadvantaged populations. Indigenous populations all over the world, whose lifestyle is changing rapidly and drastically, seem to be particularly prone to show an increased prevalence of overweight and its co-morbidities among adults. The aim of this study was to evaluate the association between socioeconomic and nutritional statuses in adults of two indigenous populations of the Argentine Gran Chaco: the Toba and Wichí of the province of Formosa. Originally hunter-gatherers, they are now more settled and engage in temporary wage labor and local political positions. A total of 541 adults (>20 years old) participated in the study. Almost 50% of the adult Toba and 34% of the adult Wichí were overweight and 10% of adults in both populations were obese. Socioeconomic status was positively associated with body mass index in both populations. Furthermore, political connectedness with the non-indigenous sector, as in the case of community leaders, was highly correlated with obesity. Differences within and between groups can be explained by biocultural factors that include gender, diet (foraged vs store-bought), lifestyle (sedentary vs more active), and history of political power. Our study highlights the interactions among social, cultural, and political economic variables, such as political hierarchies within the group or degree of social connectedness with community leaders. By making these variables an integral part of our analysis and interpretation, we hope to improve our understanding of the situation of indigenous populations in transition. © 2009 Elsevier B.V. All rights reserved.Fil: Valeggia, Claudia Rita. University of Pennsylvania; Estados UnidosFil: Burke, Kevin M.. University of Pennsylvania; Estados UnidosFil: Fernandez Duque, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. University of Pennsylvania; Estados Unido

The Adjusted Measure of Body Mass Index for the Chinese and its Impact on Health

The aim of this paper is to examine the impact of socio-economic status (SES) on the Body Mass Index (BMI), a formula based on the ratio of height to weight, linked to health, using a four-year (1991, 1993, 1997 and 2000) panel data set which comes from the Physical Examination in China Health and Nutrition Survey. To an extent we confirm the results with respect to the linkage between SES and the documented healthy BMI found for other developing countries. Furthermore, apart from using the existing specification of BMI, we develop a little further the issue on how to define BMI with respect to the adjustment of gender and age. This leads to a slightly different formulation for the BMI and a substantially different healthy range based on self-reported health. We also find that variables such as income can modify the impact of an adverse BMI on health.Body Mass Index; Health; China

Alcohol Use, Dietary, and Exercise Behaviors: A Latent Profile Analysis of Young Adult Lifestyle Behaviors

As individuals enter adulthood, their lifestyles and lifestyle behaviors begin to change drastically. These lifestyle behavior changes in emerging adulthood provide a foundation for future health behaviors that often persist through all of adulthood. The aim of this study was to use Latent profile analyses (LPA) to discover distinct profiles of homogenous groups of young adults based on alcohol, diet, and exercise behaviors. Overall, five distinct profiles for both males and females were identified: Moderates, Unhealthy Eaters, Medium Drinkers, Healthier Eaters and Exercisers, and Heavy Drinkers. Heavy Drinkers and Unhealthy Eaters were the highest risk groups and reported the highest number of days where their mental and physical health was poor. Medium Drinkers also reported more days where their mental health was poor relative to the Healthier Eaters and Exercisers. Future work should examine the motivations of individuals falling into these groups to identify mechanisms to intervene in order to promote healthy lifestyles as these young adults move into adulthood

Children’s body composition and stress, the ChiBS study : aims, design, methods, population and participation characteristics

BACKGROUND: The last decades, the prevalence of childhood obesity has increased. Apart from other lifestyle factors, the effect of chronic psychosocial stress on the development of obesity has been recognized. However, more research is needed into the influence of chronic stress on appetite regulation, energy balance and body composition, as well as on the interaction with physical activity/sedentary behavior, diet and sleep in children. In this regard, the ChiBS study (Children’s Body composition and Stress) was designed at the Ghent University. Within this paper, we describe the aims, design, methods, participation and population characteristics of the ChiBS study. METHODS: The influence of chronic stress on changes in body composition is investigated over a two-year follow-up period (February-June 2010, 2011 and 2012) in primary-school children between 6 and 12 years old in the city Aalter (Flanders, Belgium). Stress is measured by child- and parent-reported stress-questionnaires, as well as by objective stress biomarkers (serum, salivary and hair cortisol) and heart rate variability. Body composition is evaluated using basic anthropometric measurements and air displacement plethysmography. Additional information on socio-economic status, medical history, physical activity, dietary intake and sleep are obtained by questionnaires, and physical activity by accelerometers. RESULTS: The participation percentage was 68.7% (N = 523/761), with 71.3% of the children willing to participate in the first follow-up survey. Drop-out proportions were highest for serum sampling (12.1%), salivary sampling (8.3%) and heart rate variability measurements (7.4%). DISCUSSION: The ChiBS project is unique in its setting: its standardized and longitudinal approach provides valuable data and new insights into the relationship between stress and changes in body composition in a large cohort of young children. In addition, this study allows an in-depth investigation of the validity of the different methods that were used to assess stress levels in children

Body mass index dependent metabolic syndrome in severe mental illness patients

The aim of this study was to evaluate the body mass index dependent metabolic syndrome in severe mental illness patients in Gorgan. A total of 267 severe mental illness patients took part in this study. The prevalence of metabolic syndrome in severe mental illness patients in different body mass index were 6.67, 24.09 and 53.06. There were significant differences in the mean of waist circumference, HDL-cholesterol, triglyceride and fasting blood glucose in subjects with metabolic syndrome in different body mass index when compared with subjects without metabolic syndrome (p<0.05). The prevalence of high fasting glucose, low high density lipoprotein-cholesterol, high triglyceride levels, high waist circumference and high blood pressure were 14.23, 38.57, 41.57, 32.96 and 5.24, respectively. It shows that high triglyceride levels (41.57) and Low HDL-cholesterol levels (38.57) were the most frequent characteristics in comparison to other metabolic components. Our results show that, 26.96, 31.08, 21.35, 15.35 and 5.25 of subjects had zero, one, two, three and four criteria for metabolic syndrome, respectively. These results show that the prevalence of metabolic syndrome in severe mental illness patients in Gorgan is increased with elevated body mass index. The results of this study suggest that mental illness patients are at risk of metabolic syndrome, when the rate of body mass index increases. Risk factors such as high triglyceride level and low HDL-cholesterol may play an important role in the occurrence of metabolic syndrome in severe mental illness patients. © 2015, Asian Network for Scientific Information. All rights reserved

Determinants of eating behaviour in university students : a qualitative study using focus group discussions

Background: College or university is a critical period regarding unhealthy changes in eating behaviours in students. Therefore, the purpose of this study was to explore which factors influence Belgian (European) university students' eating behaviour, using a qualitative research design. Furthermore, we aimed to collect ideas and recommendations in order to facilitate the development of effective and tailored intervention programs aiming to improve healthy eating behaviours in university students. Methods: Using a semi-structured question guide, five focus group discussions have been conducted consisting of 14 male and 21 female university students from a variety of study disciplines, with a mean age of 20.6 +/- 1.7 yrs. Using Nvivo9, an inductive thematic approach was used for data analysis. Results: After the transition from secondary school to university, when independency increases, students are continuously challenged to make healthful food choices. Students reported to be influenced by individual factors (e. g. taste preferences, self-discipline, time and convenience), their social networks (e. g. (lack of) parental control, friends and peers), physical environment (e. g. availability and accessibility, appeal and prices of food products), and macro environment (e. g. media and advertising). Furthermore, the relationships between determinants and university students' eating behaviour seemed to be moderated by university characteristics, such as residency, student societies, university lifestyle and exams. Recommendations for university administrators and researchers include providing information and advice to enhance healthy food choices and preparation (e. g. via social media), enhancing self-discipline and self-control, developing time management skills, enhancing social support, and modifying the subjective as well as the objective campus food environment by e. g. making healthy foods price-beneficial and by providing vending machines with more healthy products. Conclusions: This is the first European study examining perceived determinants of eating behaviour in university students and collecting ideas and recommendations for healthy eating interventions in a university specific setting. University characteristics (residency, exams, etc.) influence the relationships between individual as well as social environmental determinants and university students' eating behaviour, and should therefore be taken into account when designing effective and tailored multilevel intervention programs aiming to improve healthy eating behaviours in university students