Perfectionism and training distress in junior athletes: The mediating role of coping tendencies

Training distress occurs when athletes fail to cope with physiological and psychological stress and can be an early sign of overtraining syndrome. Recent research has found that perfectionism predicts increases in training distress in junior athletes over time. The current study provides the first empirical test of the possibility that coping tendencies mediate the perfectionism-training distress relationship. Adopting a cross-sectional design, 171 junior athletes (mean age?=?18.1 years) completed self-report measures of perfectionistic strivings, perfectionistic concerns, problem-focused coping, avoidant coping, and training distress. Structural equation modelling revealed that avoidant coping mediated the positive relationship between perfectionistic concerns and training distress, and mediated the negative relationship between perfectionistic strivings and training distress. Problem-focused coping did not mediate any relationships between dimensions of perfectionism and training distress. The findings suggest that the tendency to use coping strategies aimed at avoiding stress may partly explain the relationship between perfectionism and training distress but the tendency to use, or not use, problem-focussed coping does not.     

Oxygen uptake kinetics in children and adults after the onset of moderate-intensity exercise

The literature suggests that the oxygen uptake (VO2) response to the onset of moderate-intensity exercise may be both mature from childhood and independent of sex. Yet the cardiorespiratory response to exercise and the metabolic profile of the muscle appear to change with growth and development and to differ between the sexes. The aim of this study was to investigate further changes in the VO2 kinetic response with age and sex. Participants completed a series of no less than four step change transitions, from unloaded pedalling to a constant work rate corresponding to 80% of their previously determined ventilatory threshold. Each participant's breath-by-breath responses were interpolated to 1 s intervals, time aligned and then averaged. A single exponential model that included a time delay was used to analyse the averaged response following phase 1 (15 s). Participants with parameter confidence intervals more than +/- 5 s were removed from the sample; the results for the remaining 13 men and 12 women (age 19-26 years), 12 boys and 11 girls (age 11-12 years) were used for statistical analysis. Children had a significantly shorter time constant than adults, both for males (19.0+/-2.0 and 27.9+/-8.6 s respectively; P<0.01) and females (21.0+/-5.5 and 26.0+/-4.5 s respectively; P<0.05). There were no significant differences in the time constant between the sexes for either adults or children (P>0.05). A significant relationship between the time constant and peak VO2 was found only in adult males (P<0.05). A shorter time constant in children may reflect an enhanced potential for oxidative metabolism.     

Transcending widgets: the nature of technical services

This paper was presented as the keynote address at the Ohio Library Council, Technical Services Division conference,“Technical Services, 2003: Inspiration, Example, Synthesis” at Mohican State Park, Ohio, May 7, 2003. The keynote was to fill the role of “inspiration.” The author considers why technical services personnel may feel isolated, misunderstood, or dispensable; why technical services personnel may be misunderstood or underappreciated by others; the nature and mission of librarianship and how technical services relates to them; the consequences of having a bad image and a bad self-image; and how harmful opinions and actions might be countered.     

TV NEWS AND U.S. PUBLIC OPINION ABOUT FOREIGN COUNTRIES: THE IMPACT OF EXPOSURE AND ATTENTION

This article assesses the potential for US news coverage offoreign affairs to influence US public opinion about foreigncountries during the latter part of 1989 and early 1990, a timeof dramatic changes in central Europe. The study draws on twosources of data: content analysis of US network news and wireservice coverage of nine countries (West Germany, East Germany,the Soviet Union, Hungary, Poland, Great Britain, France, Japan,and Israel) over a six month period, and a nationally representativesurvey of 1,117 US adults which measured opinions about thesecountries, conducted in early 1990. The study shows that thereis an important relationship between the visibility of foreigncountries in TV news and US public opinion about these countries.TV is more important than newspapers for influencing publicopinion about foreign countries. And attention to foreign affairsnews, rather than simple exposure to news, best predicts generalliking of a country. Finally, attention to television news coveragehad a positive and significant influence on sympathy with Westand East Germany in 1990, even if one had German friends, relativesor ancestors, or had visited Europe.     

Gender and ethnic changes in physical work capacity from childhood through adolescence

This study determined gender and ethnic differences in physical work capacity (PWC170) of 8-16-year-old American youth as they progress from elementary to high school. A multicohort group of 2,540 youth participated 50.4% girls (21.4% African Americans, and 78.6% Caucasians). PWC170 was predicted from cycle ergometer testing six times over a 7-year period. The absolute PWC170 of girls stabilized in early adolescence, while boys increased with each trial. The PWC170 relative to body weight of girls decreased steadily, whereas the boys remained stable. African Americans had greater absolute PWC170 values than Caucasians (p = .0001). The relative PWC170 was lower for African American girls than Caucasian girls (p = .0001), but there were no ethnic differences for boys (p > .05). Although correlations and grouping suggested moderate tracking; girls with high relative PWC170 tended to migrate to lower levels as they aged, where as high-peforming boys maintained their PWC170 as they aged.