TELEVISION CODES AND AUDIENCE RESPONSE

A set of practical exercises is reported, used with students in illustration of the unconscious biases of TV presentation techniques upon the viewer. The development of media studies work of this type is discussed, and its outcome for the students is illustrated by extracts from their written reports. The article is intended primarily for teachers of media and television studies, exemplifying an experimental approach made possible by the use of simple video equipment at various levels of education.     

Occupational Socialization and the Physical Education Student Teacher

The purpose of this study was to assess the physical education student teacher's Pupil Control Ideology (PCI) prior to and after student teaching and to examine the cooperating teacher's role as a socialization agent. PCI was examined by the Pupil Control Ideology Form which assesses the ideology on a continuum from custodialism to humanism. In addition, observational and interview data were collected in order to make further comparisons with PCI data. The results indicate that the subjects (N = 28) became significantly more custodial in their PCI during student teaching. When compared to cooperating teacher scores, student teachers' mean PCI scores were significantly different on pretest analyses (in a humanistic direction), but not on posttest analyses. Furthermore, PCI results from subjects selected for field observation indicated that the humanistic group moved in a custodial direction, while the custodial group moved in a humanistic direction. Finally, observation and interview data support the quantitative findings and the student teacher's maintenance of or shift toward a custodial control ideology, as influenced by the cooperating teacher and other factors particular to the physical education setting.     

Influence of playing standard on the physical demands of professional rugby league

Abstract

In this paper we report on two studies that investigated the physical demands of professional rugby league match-play. Instudy one, National Rugby League (NRL) and National Youth Competition (NYC) players underwent global positioning system (GPS) analysis during competitive matches. No differences (P > 0.05) were observed between playing standards for minutes played, total distance covered, or the distances covered at low and high speeds. However, NRL players engaged in significantly more repeated high-intensity effort bouts than NYC players (13.1 ± 0.8 bouts vs. 9.7 ± 1.1 bouts). Reductions in physical performance occurred from the first to second half for both NRL and NYC players. In study two, we investigated, in the same players, the physical demands of professional rugby league match-play when players were competing in trial and regular fixture matches. The locomotor demands of trial matches were lower than fixture matches, with players covering less distance per minute of match-play, including less distance at low and high speeds. Players were also less likely to engage in repeated high-intensity effort bouts in trial matches than fixtures. These findings demonstrate that neither NYC matches nor NRL trial matches adequately reflect the intense physical demands of NRL fixture matches.     

Analysis of lower limb internal kinetics and electromyography in elite race walking

Abstract

The aim of this study was to analyse lower limb joint moments, powers and electromyography patterns in elite race walking. Twenty international male and female race walkers performed at their competitive pace in a laboratory setting. The collection of ground reaction forces (1000 Hz) was synchronised with two-dimensional high-speed videography (100 Hz) and electromyography of seven lower limb muscles (1000 Hz). As well as measuring key performance variables such as speed and stride length, normalised joint moments and powers were calculated. The rule in race walking which requires the knee to be extended from initial contact to midstance effectively made the knee redundant during stance with regard to energy generation. Instead, the leg functioned as a rigid lever which affected the role of the hip and ankle joints. The main contributors to energy generation were the hip extensors during late swing and early stance, and the ankle plantarflexors during late stance. The restricted functioning of the knee during stance meant that the importance of the swing leg in contributing to forward momentum was increased. The knee flexors underwent a phase of great energy absorption during the swing phase and this could increase the risk of injury to the hamstring muscles.