Contextual influences and athlete attitudes to drugs in sport

This article reports on 11 narrative-based case histories which sought to: (1) uncover the attitudes of players and athletes to drugs in sport, and (2) explore contextual factors influencing the formation of those attitudes as informed by social ecology theory. Overall, participants viewed the use of banned performance-enhancing substances as cheating, ‘hard’ non-performance-enhancing recreational or illicit substances as unwise, legal non-performance-enhancing substances as acceptable, and legal performance-enhancing substances as essential. In short, attitudes were sometimes quite libertarian, and contingent upon first, the legality of the substance, and second, its performance impact. Results also indicated that athletes’ attitudes about drugs were fundamentally shaped by sport's culture. Other significant factors included its commercial scale, closely identifiable others, early experiences and critical incidents of players and athletes, and their level of performance.     

Do as we do and not as we say: teacher educators supporting student teachers to learn on teaching practice

This paper reports data from a larger study into the ways in which Physical Education Teacher Education (PETE) students engaged in professional learning during teaching practice (TP) in Ireland. The study comprised one umbrella case study of Greendale University, schools and PETE students that consisted of five individual cases: tetrads of PETE student teacher, cooperating teacher (CT), University tutor (UT) and School Principal (SP). Each tetrad was defined as a unique community of practice located within the wider structures of school, education and university policies on teacher education. Data were collected over one academic year using qualitative research methods and grounded theory as a systematic data analysis tool.

Findings indicate that in each of the five cases, support for PETE student learning was, to some degree, dysfunctional. In particular, it became evident that there were two conflicting teacher-learning curricula in operation. The official curriculum, expressed in policy and by SPs, UTs and CTs (also referred to as mentors), valued a PETE student who cared for pupils, had a rich pedagogical content knowledge, knew how to plan for and assess pupils’ learning, valued reflection, and was an active member of a community of practice. The unofficial but essentially more powerful enacted curriculum, encouraged PETE students to draw upon their own resources to learn pedagogical content knowledge in an isolated and unsupported manner.

The data highlight the force of the unofficial curriculum and the ways in which PETE students were guided to the core of the dysfunctional community of practice by untrained CTs (mentors) and untrained UTs. PETE students in this study learned to survive in a largely unsupportive professional learning environment and, just as theories of social reproduction intimate, indicated that they would reproduce this practice with PETE students in their care in the future.

The findings suggest that in cases similar to those studied, there is a need for teacher educators in Ireland, (in both universities and schools) to critically interrogate their personal practices and implicit theories of teacher education and to engage in training for their role. There is also evidence to suggest that PETE students in Ireland could benefit from the development of school–university partnerships that act as fundamental units of high quality professional learning. In the cases studied, this may have led to a stronger focus on the intended or official curriculum of TP, led by the revised maxim: ‘Do as we say and as we do’.     

Sagittal plane motion of the lumbar spine during ergometer and single scull rowing

Lumbar spine injury in rowers is common and ergometer rowing has been cited as a risk factor for this injury. The purpose of this study is to compare lumbar kinematics between ergometer and single scull rowing and to examine the effect of fatigue on kinematics. The sagittal lumbar spine motion of 19 elite male rowers (lumbar spine injury free in the previous six months) was measured with an electrogoniometer during a ‘step test’ on an ergometer and in a single sculling boat. Maximum range of lumbar flexion was recorded in standing for reference. Power output and heart rate were recorded during the ergometer tests. Heart rate was used as a surrogate for power output in the sculling test. Maximum lumbar flexion increased during the step test and was significantly greater on the ergometer (4.4° ± 0.9°change), compared with the boat (+1.3° ± 1.1°change), (3.1°difference, p = 0.035). Compared to the voluntary range of motion, there is an increase of 11.3% (ergometer) and 4.1% (boat). Lumbar spine flexion increases significantly during the course of an ergometer trial while changes in a sculling boat were minimal. Such differences may contribute to the recent findings linking ergometer use to lower-back injury.     

The effects of impact and non-impact exercise on circulating markers of collagen remodelling in humans

Exercise has been shown to influence collagen synthesis and degradation. The aim of this study was to determine whether the stimulus for these changes is metabolic or mechanical. Eight healthy adults aged 22 +/- 4 years (mean +/- s) completed two exercise bouts-a 10 km road run and a deep water running session. Blood samples were collected before exercise and on days 1, 2, 3, 6 and 10 after exercise for measurement of creatine kinase activity, type IV collagen antigenicity, and concentrations of matrix metalloproteinase (MMP)- 9, tissue inhibitors of metalloproteinase (TIMP)- 1 and -2, and the MMP-2/TIMP-2 complex. Serum creatine kinase was elevated 24 h after the road run, but unchanged after the deep water running session. Serum collagen IV antigenicity decreased after both the road run and the deep water running session, suggesting suppressed type IV collagen synthesis in response to exercise, although serum MMPs and TIMPs remained unchanged after exercise. These results suggest that collagen IV synthesis is temporarily suppressed after exercise, irrespective of exercise type.