Physiological determinants of climbing-specific finger endurance and sport rock climbing performance

The aim of the study was to examine several physiological responses to a climbing-specific task to identify determinants of endurance in sport rock climbing. Finger strength and endurance of intermediate rock climbers (n = 11) and non-climbers (n = 9) were compared using climbing-specific apparatus. After maximum voluntary contraction (MVC) trials, two isometric endurance tests were performed at 40% (s = 2.5%) MVC until volitional exhaustion (continuous contractions and intermittent contractions of 10 s, with 3 s rest between contractions). Changes in muscle blood oxygenation and muscle blood volume were recorded in the flexor digitorum superficialis using near infra-red spectroscopy. Statistical significance was set at P < 0.05. Climbers had a higher mean MVC (climbers: 485 N, s = 65; non-climbers 375 N, s = 91) (P = 0.009). The group mean endurance test times were similar. The force-time integral, used as a measure of climbing-specific endurance, was greater for climbers in the intermittent test (climbers: 51,769 N x s, s = 12,229; non-climbers: 35,325 N x s, s = 9724) but not in the continuous test (climbers: 21,043 N x s, s = 4474; non-climbers: 15,816 N x s, s = 6263). Recovery of forearm oxygenation during rest phases (intermittent test) explained 41.1% of the variability in the force-time integral. Change in total haemoglobin was significantly greater in non-climbers (continuous test) than climbers (P = 0.023--40% test timepoint, P = 0.014--60% test timepoint). Pressor responses were similar between groups and not related to the force-time integral for either test. We conclude that muscle re-oxygenation during rest phases is a predictor of endurance performance.     

The roles of professional and trade associations

Under the former Communist regimes, trade associations were often effectively instruments of government. They now have to acquire a new role in the emergent democracies. But trade associations have few resources, are difficult to manage, and are subject to legal restraints. Yet these groups have an enormous job: to act on behalf of their members, to represent them to the government and other groups, and to achieve what they as an industry want and need. This requires that members reach a common position and provide support and assistance. It also requires that the association delegate some activities to commercial operators. A variety of book trade associations is described. Clive Bradley has been chief executive of the British Publishers Association since 1976 and director of the Confederation of Information Communication Industries since 1984. A barrister who studied law at Cambridge and Yale Universities, he has made special studies of the laws of copyright and industrial relations and of European law. This article was adapted from a presentation given at the seminar “East Meets West: Copyright and the Publisher in a Market Economy”, held in Hamburg in March 1991.     

Cross-cultural comparison of American and Finnish college students' exercise behavior using transtheoretical model constructs

Although the benefits of exercise are well documented, an international problem of physical inactivity exists. More research, especially theory based, has been recommended. One promising approach for studying exercise behavior is that proposed in the Transtheoretical Model (TTM) of behavior change. This model, however, has received minimal cross-cultural attention and, relative to the current study, measurement instruments have only recently been translated into the Finnish language. The purpose of this study was to assess American and Finnish college students' exercise behaviors on the basis of TTM. Participants were American (n = 169) and Finnish (n = 168) college students who completed language-specific measures of exercise behavior, stage of change, processes of change, decisional balance, self-efficacy, and temptation. The only cultural difference observed was that the American participants rated themselves higher on barrier self-efficacy relative to the Finnish participants. Regardless of nationality orgender, participants classified by their stage of change differed on all the core constructs assessed. These results generally support the utility of TTM for understanding American and Finnish college students' exercise behavior.     

The Effects of Individual and Group Monetary Incentives on High Performance

This study examined whether high performers performed better (a) under individual and group incentive pay than under hourly pay and (b) under individual incentive pay than under group incentive pay. Participants were 11 college students. An ABCDC within‐subject design was used in which A was hourly pay with individual feedback, B was individual incentives with individual feedback, C was individual incentives with individual and group feedback, and D was group incentives with individual and group feedback. Participants performed better under both individual and group incentive pay than under hourly pay (p<.01). They did not significantly decrease performance when switched from individual to group incentives, but increased their performance when switched back to individual incentives (p<.01). Individual incentive pay was rated as the most preferred and most satisfying of the three pay systems, and group incentive pay as the least preferred, least satisfying and most stressful. These data suggest that high performers perform better under individual than group incentive pay after exposure to both and are highly likely to prefer individual incentive pay.     

Interdisciplinary and Intradisciplinary Research and Teaching in Kinesiology: Continuing the Conversation

Interdisciplinary work is increasingly becoming a larger expectation in research and teaching. Moreover, prominent kinesiologists have proposed interdisciplinary research as a solution to perceived and/or real fragmentation issues that have developed within the field and across, and even within the various subdisciplines. For such an important topic, however, there is a lack of research surrounding interdisciplinary research in kinesiology. This may be due to the ambiguity surrounding interdisciplinary research, an often misunderstood and misapplied concept with deep philosophical roots. The purpose of this article is to help those in kinesiology understand and use interdisciplinary concepts in their work. Toward this end, the article provides an overview of the literature and suggests kinesiology-specific definitions for interdisciplinary and intradisciplinary research. Additionally, the article gives examples of interdisciplinary research projects. Finally, the article will expand beyond scholarship and explore the importance of interdisciplinary teaching and service as well.     

School Lunch is Not a Meal: Posthuman Eating as Folk Phenomenology

School lunch is one of the least critiqued aspects of compulsory schooling. As a result, there may be a tendency to think of school lunch as part of the hidden curriculum, but what and how students eat are evident and ubiquitous parts of the schooling experience. In demarcating the school lunch as an overt educational event, this article attempts to tell a story behind the centerpiece of that event: meat. We hope to add to the small yet growing body of literature in social foundations of education addressing the multiple meanings and theoretical complexities of school food, as we consider the cafeteria's potential in cultivating posthuman eating through the lens of folk phenomenology. We ask: What are the implications of a site—the school cafeteria—where eating animals is routine and normal, yet still ignored and forgotten? This question extends well beyond the cafeteria itself. Thus, our analysis seeks to make overt a phenomenological reversal that returns to the things themselves—animals (human and nonhuman) and their lives and deaths—as a way to recognize food's posthuman and folk significance. We conclude by linking our analysis to the challenges faced by educators and scholars critiquing the neoliberal school that routinely acts as a training ground for docile bodies and technocratically controlled human and nonhuman subjects. Posthuman eating as folk phenomenology is an opportunity to recover what has been lost in the neoliberal effort to (re)produce students as acquiescent consumers.     

Ethnic Differences in Associations Among Popularity,Likability, and Trajectories of Adolescents' Alcohol Use and Frequency

Two‐part latent growth models examined associations between two forms of peer status (popularity, likability) and adolescents' alcohol use trajectories throughout high school; ethnicity was examined as a moderator. Ninth‐grade low‐income adolescents (N = 364; M_age = 15.08; 52.5% Caucasian; 25.8% African American; 21.7% Latino) completed sociometric nominations of peer status and aggression at baseline, and reported their alcohol use every 6 months. After controlling for gender, aggression, ethnicity, and socioeconomic status, popularity—but not likability—prospectively predicted alcohol use trajectories. However, these effects were moderated by ethnicity, suggesting popularity as a risk factor for alcohol use probability and frequency among Caucasian and Latino, but not African American adolescents. Results suggest that developmental correlates of peer status should be considered within cultural context.     

Teachers’ views on risk factors for problematic school absenteeism in Swedish primary school students

In the present online survey, 158 teachers in regular and special education teaching in grades six to nine were asked to rate the importance of probable reasons for problematic school absenteeism. On average, the teachers estimated that among their students, 19 students had presented with problematic school absenteeism over the last five years. Teachers viewed school absenteeism as a multifactorial problem. Family factors were considered to contribute most and low mood or depression were rated as one of the five most contributing factors. Teachers in special education viewed school factors as more influential than teachers in mainstream education did (t₁₅₆ = ?3.94, p < 0.05). The current findings stress the importance of collaboration between the school, parents and the student to be able to address all factors that may lead to problematic school absenteeism.