Childhood aerobic fitness predicts cognitive performance one year later

Abstract

Aerobically fit children outperform less fit peers on cognitive control challenges that involve inhibition, cognitive flexibility, and working memory. The aim of this study was to determine whether, compared with less fit children, more fit 9- and 10-year-old pre-adolescents exhibit superior performance on a modified compatible and incompatible flanker task of cognitive control at the initial time of fitness testing and approximately one year later. We found that more fit children demonstrated increased flanker accuracy at both test sessions, coupled with a superior ability to flexibly allocate strategies during task conditions that required different amounts of cognitive control, relative to less fit children. More fit children also gained a speed benefit at follow-up testing. Structural MRI data were also collected to investigate the relationship between basal ganglia volume and task performance. Bilateral putamen volumes of the dorsal striatum and globus pallidus volumes predicted flanker performance at initial and follow-up testing one year later. The present findings suggest that childhood aerobic fitness and basal ganglia volumes relate to cognitive control at the time of fitness testing and may play a role in cognitive performance in the future. We hope that this research will encourage public health and educational changes that will promote a physically active lifestyle in children.     

The Relation of Mild Traumatic Brain Injury to Chronic Lapses of Attention

We assessed the extent to which failures in sustained attention were associated with chronic mild traumatic brain injury (mTBI) deficits in cognitive control among college-age young adults with and without a history of sport-related concussion. Participants completed the ImPACT computer-based assessment and a modified flanker task. Results indicated that a history of mTBI, relative to healthy controls, was associated with inferior overall flanker task performance with a greater number of omission errors and more frequent sequentially occurring omission errors. Accordingly, these findings suggest that failures in the ability to maintain attentional vigilance may, in part, underlie mTBI-related cognition deficits.     

Loves,Suffering and Identification: the Passions of Australian Football League Fans

The people of Melbourne are renowned for their ‘football fever’, yet this fever is under-studied. This paper addresses this fever by exploring the loves, suffering, and strange identifications of Australian Football League fans. Building on and complicating Freud's theories of group psychology, I argue that love, or rather two loves, are at the heart of the experience of being a fan. Fans love their club in a manner that incorporates the club into their sense of self, with the club becoming an ideal that is to be served. This love facilitates a particular form of identification where fans experience the club's trials, tribulations and triumphs, as if they too were being subjected to them. Moreover, in identifying with their club through love, the fan also takes on a second love, that of the club's object of desire, the elusive premiership. This is the love of the conquest and pursuit, a love that entails pain and suffering.     

Diamonds,ovals, and rings: Northwestern shoshone sports at the Washakie colony of Northern Utah, 1903–1929

During the first quarter of the twentieth century Northwestern Shoshone from the Washakie Indian Colony of northern Utah competed with their white neighbours in sporting contests. These events were recorded by white news reporters and, even more conspicuously, by a Shoshone journalist named Willie Ottogary. For 23 years Ottogary reported the daily highlights, struggles, successes and sporting events of his people. His social column was published in several newspapers of northern Utah and southern Idaho. Living descendants of the Washakie, Utah, group provide another key source of information on sporting activities engaged in by the Northwestern Shoshone. These three key sources are combined for the first time, in this essay, to bring to light the fascinating stories of Shoshone athletics from 1903 to 1929.     

The Rise of Athletic Masculinity at the Carlisle Indian School, 1904–1913

Following the dismissal of Captain Richard Pratt from the position of superintendent in 1904, the Carlisle Indian School entered a new era. The school became more focused on vocational education and moved away from offering immediate civilisation to the students. The school even promoted Indian arts and crafts. This move was also reflected in sport at Carlisle. The school became determined to construct a successful athletic programme. This resulted in the rise of masculine gamesmanship among the athletes. This, combined with racial pride, formed the basis of the athletes' manhood in the post-Pratt era. Yet, despite the demonstration of superior masculinity through victories, the school still positioned the students as subordinate to white men. The players were portrayed as comparatively unintelligent; they were apparently incapable of actually coaching the team.     

Comparison of the prevalence and treatment of hypertension in two populations in the United States: Masters swimmers versus the NHANES population

Abstract

This research compares the prevalence of hypertension in a group of adult masters swimmers with an age and sex matched cohort from the 2008 NHANES (National Health and Nutrition Examination Survey), used to represent the general population in the United States. Masters swimmer data were obtained from a one-time survey of all United States Masters Swimming (USMS) members. Both datasets included demographics, drug therapy, diseases and health status. Characteristics of swimming sessions as well as perceptions of impact of medications on exercise were also collected from the USMS respondents. Of 1346 completed surveys from USMS respondents, 15.8% self-identified as having hypertension while 36.2% participants in the NHANES survey suffered from hypertension (P < 0.001). The two groups were well matched for age and gender but the USMS group was primarily Caucasian, higher income, higher education, and reported higher health status. In the USMS group, not only was hypertension less prevalent but those who suffered from hypertension took fewer medications (P = 0.04) to manage their hypertension than in the NHANES group. Additionally, The USMS group suffering from hypertension considered themselves healthier (P < 0.001) than the NHANES group.     

Why users keep answering questions in online question answering communities: A theoretical and empirical investigation

This study theorized and validated a model of knowledge sharing continuance in a special type of online community, the online question answering (Q&A) community, in which knowledge exchange is reflected mainly by asking and answering specific questions. We created a model that integrated knowledge sharing factors and knowledge self-efficacy into the expectation confirmation theory. The hypotheses derived from this model were empirically validated using an online survey conducted among users of a famous online Q&A community in China, “Yahoo! Answers China”. The results suggested that users’ intention to continue sharing knowledge (i.e., answering questions) was directly influenced by users’ ex-post feelings as consisting of two dimensions: satisfaction, and knowledge self-efficacy. Based on the obtained results, we also found that knowledge self-efficacy and confirmation mediated the relationship between benefits and satisfaction.     

Multiplicative Measurements of a Trait Anxiety Scale as Predictors of Burnout

The purpose of the present study was to investigate whether combining the two dimensions of anxiety (i.e., intensity and direction) by using a multiplicative model would strengthen the prediction of burnout. Collegiate athletes (N = 157) completed the Athlete Burnout Questionnaire as well as a trait version of the Competitive State Anxiety Inventory-2D. Three separate hierarchical regression analyses with four blocks were conducted to predict each one of the burnout subscales from anxiety intensity and direction while controlling for gender. The multiplicative variable for cognitive anxiety was a significant predictor of reduced sense of accomplishment (p < .01). Self-confidence was the only directional scale that predicted reduced sense of accomplishment, emotional/physical exhaustion, and devaluation (p < .01). In addition, gender was found to predict overall burnout in all three subscales as a control variable (p < .05). Conclusions and applied implications are drawn based on the results.