The Benefits and Barriers of Physical Activity among College Students

According to the DHHS, one third of adults in the United States do not participate in enough physical activity (Coronado, Sos, Talbot, Do & Taylor, 2010). Physical inactivity is a serious health problem among university students, (Irwin, 2007, p.40). This poses a great danger to students who have serious health issues. Thirty-seven percent of the college student population is overweight, with 11 % being obese, (Berg, An, Ahluwalia, 2013, p. 389). Even though the benefits of participating in physical activity are proven to increase psychological and physiological health, many college students do not meet the minimal recommendations for physical activity (Kilpatrick, Herbert & Bartholomew, 2005). Obesity has increased among college students due to lack of exercise and sedentary lifestyle, such as long periods of sitting and inactivity (Bragg, Carolyn, Kaye & Desmond, 2009). Specifically, weight gain in the first few years of college is becoming an important concern affecting the likelihood that more young adults are, or will become obese, (Gruber, 2008, p.557). On average, weight gain is greater among college students compared to the general population (English, 2009). However, students can improve their health by including exercise 5 days each week for 30 min (English, 2009). Students have an array of physical activity options available to them through campus recreational facilities; for example, recreational sports, games, weight lifting, swimming, or outdoor activities. These activities range from moderate to vigorous intensity levels (Coronado, Sos, Talbot, Do & Taylor, 2010). While it may appear simplistic to engage in these activities, there are challenges and barriers that can impede students from reaping the benefits of physical activity. The purpose of this paper is to provide a brief overview of the benefits and challenges of physical activity for college students

Defining childhood severe falciparum malaria for intervention studies.

Background Clinical trials of interventions designed to prevent severe falciparum malaria in children require a clear endpoint. The internationally accepted definition of severe malaria is sensitive, and appropriate for clinical purposes. However, this definition includes individuals with severe nonmalarial disease and coincident parasitaemia, so may lack specificity in vaccine trials. Although there is no “gold standard” individual test for severe malaria, malaria-attributable fractions (MAFs) can be estimated among groups of children using a logistic model, which we use to test the suitability of various case definitions as trial endpoints. Methods and Findings A total of 4,583 blood samples were taken from well children in cross-sectional surveys and from 1,361 children admitted to a Kenyan District hospital with severe disease. Among children under 2 y old with severe disease and over 2,500 parasites per microliter of blood, the MAFs were above 85% in moderate- and low-transmission areas, but only 61% in a high-transmission area. HIV and malnutrition were not associated with reduced MAFs, but gastroenteritis with severe dehydration (defined by reduced skin turgor), lower respiratory tract infection (clinician's final diagnosis), meningitis (on cerebrospinal fluid [CSF] examination), and bacteraemia were associated with reduced MAFs. The overall MAF was 85% (95% confidence interval [CI] 83.8%–86.1%) without excluding these conditions, 89% (95% CI 88.4%–90.2%) after exclusions, and 95% (95% CI 94.0%–95.5%) when a threshold of 2,500 parasites/μl was also applied. Applying a threshold and exclusion criteria reduced sensitivity to 80% (95% CI 77%–83%). Conclusions The specificity of a case definition for severe malaria is improved by applying a parasite density threshold and by excluding children with meningitis, lower respiratory tract infection (clinician's diagnosis), bacteraemia, and gastroenteritis with severe dehydration, but not by excluding children with HIV or malnutrition

Recruitment of Young Black Men into Trauma and Mental Health Services Research: Recommendations and Lessons Learned

Young Black/African American men are more likely to experience repeated trauma that escalates throughout young adulthood, compared to young White men. Exposure to trauma has impacts on mental health outcomes, but young Black men face substantial barriers to mental health care. In order to begin to address these disparities, it is imperative to increase understanding of the needs, preferences, and priorities of young Black men for mental health care services following trauma. Yet, young Black men are often underrepresented in mental health services research. The purpose of the current study was to describe strategies for recruitment of young Black men with previous trauma exposure from broad urban community settings in Kansas City, Missouri, for participation in a qualitative study exploring beliefs, attitudes, and norms regarding mental health care. A total of 70 young Black/African American men aged 18-30 completed the initial recruitment process, and 55 of these men were consented as participants who completed the study. The majority of participants were recruited from barbershops (n = 21), followed by community-wide events (n = 11) and referrals (n = 11). Few participants were recruited from faith-based settings. Strategies for facilitation of study recruitment and focus group attendance are discussed. These practices may contribute to development of mental health interventions that are relevant, feasible, and sustainable, as well as restoring and advancing research relationships with racial/ethnic minority populations and contributing to racial equity

Decoherence in a Josephson junction qubit

The zero-voltage state of a Josephson junction biased with constant current consists of a set of metastable quantum energy levels. We probe the spacings of these levels by using microwave spectroscopy to enhance the escape rate to the voltage state. The widths of the resonances give a measurement of the coherence time of the two states involved in the transitions. We observe a decoherence time shorter than that expected from dissipation alone in resonantly isolated 20 um x 5 um Al/AlOx/Al junctions at 60 mK. The data is well fit by a model including dephasing effects of both low-frequency current noise and the escape rate to the continuum voltage states. We discuss implications for quantum computation using current-biased Josephson junction qubits, including the minimum number of levels needed in the well to obtain an acceptable error limit per gate.Comment: 4 pages, 6 figure

Predictors and Missed Opportunities for Blood Glucose Screening among African Americans: Implications for Church-based Populations

African Americans (AAs) are disproportionately diagnosed with prediabetes, diabetes, and related complications. Guidelines for prediabetes/diabetes screening emphasize reaching at-risk adults. The AA church has potential to increase reach of BGS with AA church members and community members. The current study identified predictors of blood glucose screening (BGS) and individuals with missed opportunities for BGS among church-affiliated AA adults. Participants were drawn from a previous pilot study (Project Faith Influencing Transformation) conducted in six AA churches over eight months. Eligibility criteria included self-identifying as AA and being aged 18 or older. Participants who had previously been diagnosed with diabetes were excluded, resulting in a final sample of N = 274. Participants were primarily female (68%), with an average age of 52 years. Slightly more than half of participants (54%) had obtained BGS in the past year. Logistic regression revealed that BGS was less likely among participants who had less routine doctor visits. Among church members, likelihood of BGS increased with number of years as a member. Participants who were older and uninsured were more likely to have a missed opportunity for BGS. Implications for diabetes prevention efforts, particularly faith-based diabetes prevention interventions for AAs, are discussed

Influenza surveillance among children with pneumonia admitted to a district hospital in coastal Kenya, 2007-2010

Background: Influenza data gaps in sub-Saharan Africa include incidence, case fatality, seasonal patterns, and associations with prevalent disorders. Methods: Nasopharyngeal samples from children aged <12 years who were admitted to Kilifi District Hospital during 2007–2010 with severe or very severe pneumonia and resided in the local demographic surveillance system were screened for influenza A, B, and C viruses by molecular methods. Outpatient children provided comparative data. Results: Of 2002 admissions, influenza A virus infection was diagnosed in 3.5% (71), influenza B virus infection, in 0.9% (19); and influenza C virus infection, in 0.8% (11 of 1404 tested). Four patients with influenza died. Among outpatients, 13 of 331 (3.9%) with acute respiratory infection and 1 of 196 without acute respiratory infection were influenza positive. The annual incidence of severe or very severe pneumonia, of influenza (any type), and of influenza A, was 1321, 60, and 43 cases per 100 000 <5 years of age, respectively. Peak occurrence was in quarters 3–4 each year, and approximately 50% of cases involved infants: temporal association with bacteremia was absent. Hypoxia was more frequent among pneumonia cases involving influenza (odds ratio, 1.78; 95% confidence interval, 1.04–1.96). Influenza A virus subtypes were seasonal H3N2 (57%), seasonal H1N1 (12%), and 2009 pandemic H1N1 (7%). Conclusions: The burden of influenza was small during 2007–2010 in this pediatric hospital in Kenya. Influenza A virus subtype H3N2 predominated, and 2009 pandemic influenza A virus subtype H1N1 had little impact

Relation between falciparum malaria and bacteraemia in Kenyan children: a population-based, case-control study and a longitudinal study.

BACKGROUND: Many investigators have suggested that malaria infection predisposes individuals to bacteraemia. We tested this hypothesis with mendelian randomisation studies of children with the malaria-protective phenotype of sickle-cell trait (HbAS). METHODS: This study was done in a defined area around Kilifi District Hospital, Kilifi, Kenya. We did a matched case-control study to identify risk factors for invasive bacterial disease, in which cases were children aged 3 months to 13 years who were admitted to hospital with bacteraemia between Sept 16, 1999, and July 31, 2002. We aimed to match two controls, by age, sex, location, and time of recruitment, for every case. We then did a longitudinal case-control study to assess the relation between HbAS and invasive bacterial disease as malaria incidence decreased. Cases were children aged 0-13 years who were admitted to hospital with bacteraemia between Jan 1, 1999, and Dec 31, 2007. Controls were born in the study area between Jan 1, 2006, and June 23, 2009. Finally, we modelled the annual incidence of bacteraemia against the community prevalence of malaria during 9 years with Poisson regression. RESULTS: In the matched case-control study, we recruited 292 cases-we recruited two controls for 236, and one for the remaining 56. Sickle-cell disease, HIV, leucocyte haemozoin pigment, and undernutrition were positively associated with bacteraemia and HbAS was strongly negatively associated with bacteraemia (odds ratio 0·36; 95% CI 0·20-0·65). In the longitudinal case-control study, we assessed data from 1454 cases and 10,749 controls. During the study period, the incidence of admission to hospital with malaria per 1000 child-years decreased from 28·5 to 3·45, with a reduction in protection afforded by HbAS against bacteraemia occurring in parallel (p=0·0008). The incidence of hospital admissions for bacteraemia per 1000 child-years also decreased from 2·59 to 1·45. The bacteraemia incidence rate ratio associated with malaria parasitaemia was 6·69 (95% CI 1·31-34·3) and, at a community parasite prevalence of 29% in 1999, 62% (8·2-91) of bacteraemia cases were attributable to malaria. INTERPRETATION: Malaria infection strongly predisposes individuals to bacteraemia and can account for more than half of all cases of bacteraemia in malaria-endemic areas. Interventions to control malaria will have a major additional benefit by reducing the burden of invasive bacterial disease. FUNDING: Wellcome Trust