“The Best Minute and a Half of Audio”

In the introduction to a police audio recording of Bristol Palin describing her family’s involvement in an Alaska house party brawl, CNN anchor Carol Costello commented: “This is quite possibly the best minute and a half of audio we’ve ever come across.” The incident, however, involved an alleged assault—an act that mainstream journalism generally reports in a serious manner. Costello’s glib treatment of the event could therefore be seen as potentially breaching the boundaries of professional practice, which brought a widespread media response from both mainstream organizations and right-leaning blogs. Through textual analysis of these items, this study illustrates the challenge of conducting media boundary work—and the role strain that results—when the subject of a story occupies space within both entertainment and news spheres.     

Mobilization of community resources to work with abusive and neglectful families: Community organization in New York state

This article describes the community organization experience of the Family Life Development Center at Cornell University in connection with the federally financed Resource Center on Child Abuse and Neglect which it has operated since 1975. Early on, the Center decided to concentrate its efforts on organizing local task forces on child abuse and neglect which would work at the community level to improve services for families and children afflicted with the problem. As a result, over 50 such groups were organized and they have stimulated creation of over 100 new services including Parents Anonymous chapters, parent aides, multidisciplinary teams and parenting education projects. In short, the local community organization approach enabled a small state level staff to stimulate a major mobilization of resources for child abuse and neglect at the community level throughout the state. The process began with several “trial and error” experiences in rural New York. This led to technical assistance in task force formation for a dozen more counties and finally to regional workshops on task force organizations. The process culminated with formation of a statewide federation of the local groups. The Center is now implementing the approach in New Jersey, Puerto Rico and the Virgin Islands.     

Development of an aerobic capacity prediction model from one-mile run/walk performance in adolescents aged 13–16 years

A popular algorithm to predict VO_2Peak from the one-mile run/walk test (1MRW) includes body mass index (BMI), which manifests practical issues in school settings. The purpose of this study was to develop an aerobic capacity model from 1MRW in adolescents independent of BMI. Cardiorespiratory endurance data were collected on 90 adolescents aged 13–16 years. The 1MRW was administered on an outside track and a laboratory VO_2Peak test was conducted using a maximal treadmill protocol. Multiple linear regression was employed to develop the prediction model. Results yielded the following algorithm: VO_2Peak = 7.34 × (1MRW speed in m s^?1) + 0.23 × (age × sex) + 17.75. The New Model displayed a multiple correlation and prediction error of R = 0.81, standard error of the estimate = 4.78 ml kg^?1·min^?1, with measured VO_2Peak and good criterion-referenced (CR) agreement into FITNESSGRAM’s Healthy Fitness Zone (Kappa = 0.62; percentage agreement = 84.4%; Φ = 0.62). The New Model was validated using k-fold cross-validation and showed homoscedastic residuals across the range of predicted scores. The omission of BMI did not compromise accuracy of the model. In conclusion, the New Model displayed good predictive accuracy and good CR agreement with measured VO_2Peak in adolescents aged 13–16 years.     

The within-participant correlation between perception of effort and heart rate-based estimations of training load in elite soccer players

ABSTRACT

The measurement of relative physiological stress during training is important because this is the stimulus for the long-term adaptive response. Measurements of perceived exertion (RPE) have been reported to correlate with the heart rate during field-based training sessions. Nevertheless, there are few studies on how well RPE tracks with the heart rate over repeated training sessions in elite soccer players. Therefore, we aimed to quantify the within-participant correlations between variability in session-RPE (sRPE) and the heart rate in elite male soccer players, and to determine whether the playing position moderated these correlations. The field-based training of four central defenders, four wide defenders, six central midfielders, two wide midfielders and three attackers from an elite English Premier League squad were monitored over an entire in-season competitive period, giving a total of 1010 individual training sessions for study. Correlations between session-RPE and heart rates were quantified using a within-participant model. The correlation between changes in sRPE and heart rates was r = 0.75 (95% CI: 0.71–0.78). This correlation remained high across the various player positions (wide-defender, r = 0.81; central-defender, r = 0.74; wide midfielder, r = 0.70; central midfielder, r = 0.70; attacker, r = 0.84; P < 0.001). The correlation between changes in RPE and heart rates, measured during a season-long period of field-based training, is high in a sample of elite soccer players.